JP2011248202A - Recording and playback apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording and playback apparatus capable of processing preparation of an audio file by extracting a prescribed musical work from video recording data without having to manually designate the starting point and the ending point of the extraction.SOLUTION: A recording and playback apparatus comprises a playback unit that plays back playback information including audio information, an audio extracting unit that generates partial audio information resulting from partial extraction of the audio information contained in the playback information, and an extraction control unit that controls the audio extracting unit, wherein the extraction control unit accepts designation of any desired playback position out of the playback time axis of the playback information, sets as a starting position a playback position where the playback sound volume surpasses a threshold within a playback time of a prescribed range from the designated playback position, sets as an ending position a playback position where a prescribed audio segment is detected behind the starting position, and so controls the audio extracting unit as to extract audio information between the starting position and the ending position thereby to generate partial audio information.

Description

  The present invention relates to a recording / reproducing apparatus for recording / reproducing an image or sound, and more particularly to a recording / reproducing apparatus having an audio data extraction function.

  In recent years, various recording / reproducing apparatuses such as a DVD (Digital Versatile Disc) player and an HDD (Hard Disk Drive) recorder have become widespread due to the multi-function and diversification of digital technology. These recording / reproducing apparatuses output image / audio signals to a television apparatus, a monitor, a speaker, or the like by decoding image / audio digital data recorded on a DVD or HDD.

  In some cases, one broadcast program is recorded as one data file on a recording medium reproduced by such a recording / reproducing apparatus. In such a case, when the user tries to reproduce only a desired piece of music included in the broadcast program, first the data file including the broadcast program is reproduced, and then fast forward or rewind to the position of the desired piece of music. It was necessary to do etc. For this reason, there is a problem that it takes time to start reproduction of a desired piece of music, and makes the user feel bothersome.

  In relation to the above, Patent Document 1 discloses a broadcast program recording / playback apparatus capable of accumulating data related to music in a recorded broadcast program and reproducing only the music desired by the user.

  The broadcast program recording / playback apparatus determines the start position and end position of an event included in the broadcast program based on the management information recorded in the recording unit. Then, based on the start position and end position of the event, a predetermined event is extracted from the events in the broadcast program to create a playlist. Further, a predetermined event extracted based on the play list is reproduced.

  In addition, in Patent Document 2 relating to the above, when recording a radio broadcast, a series of radio broadcast contents that are temporally continuous are recorded at predetermined intervals regardless of the listener's will and operation. A receiving device that is recorded as a content file on an HDD or the like is disclosed.

  The receiving apparatus receives a broadcast signal in which an audio signal, character information, and a recording control signal are multiplexed, and extracts character information and a recording control signal from the received broadcast signal. Then, the demodulated audio signal is recorded on the recording medium as one content file in the period specified by the extracted recording control signal.

JP 2007-28226 A JP 2005-123782 A

  However, in the recording / reproducing apparatus of Patent Document 1, it is necessary for the user to manually specify the start point and the end point of the voice to be extracted. Moreover, although the receiving apparatus of patent document 2 can combine a plurality of music pieces into one, it is impossible to extract only one music piece and create an audio file.

  For this reason, in the state where the user is watching the recorded broadcast program, if one piece of music that the user likes is accidentally started, only one piece of music can be played with a simple operation while continuing to play. An audio file containing it could not be created.

  The present invention has been made in view of the above problems, and in the state where reproduction information including sound, for example, recorded data is being reproduced, a piece of music desired by the user is extracted from the reproduction information to obtain an audio file. It is an object of the present invention to provide a recording / reproducing apparatus that can be created and does not require a user to manually specify the start point or end point of extraction.

  In order to achieve the above object, a recording / reproducing apparatus of the present invention generates a reproduction processing unit that reproduces reproduction information including audio information, and partial audio information obtained by extracting a part of audio information included in the reproduction information. In a recording / reproducing apparatus including an audio extraction unit, designation of an arbitrary reproduction position is accepted from the reproduction time axis when the reproduction information is reproduced by the reproduction processing unit, and a predetermined range from the reproduction position is received. The playback position where the playback volume exceeds the threshold within the playback time is set as the start position, the playback position where a predetermined playback sound is detected behind the start position is set as the end position, and is sandwiched between the start position and the end position. An extraction control unit that controls the voice extraction unit so as to generate the partial voice information by extracting the voice information in the specified range is provided.

  According to this configuration, the recording / reproducing apparatus of the present invention includes a reproduction processing unit that reproduces reproduction information including audio information, and an audio extraction unit that generates partial audio information obtained by extracting a part of the audio information included in the reproduction information. And. An extraction control unit that controls the voice extraction unit is also provided. The extraction control unit accepts designation of an arbitrary reproduction position from the reproduction time axis of the reproduction information. Then, the playback position where the playback volume exceeds the threshold value within the playback time within a predetermined range from the designated playback position is set as the start position. Furthermore, a reproduction position where a predetermined reproduction sound is detected behind the start point position is set as an end point position. Then, the voice extraction unit is controlled so as to extract voice information in a range between the start point position and the end point position. Thereby, partial audio information is generated.

  In addition, in order to achieve the above object, the extraction control unit provided in the recording / reproducing apparatus of the present invention accepts designation of an extraction time indicating the length of the reproduction time of the partial audio information, and only the extraction time from the start point position. The voice extraction unit is controlled to generate the partial voice information with a backward reproduction position as the end point position.

  According to this configuration, the extraction control unit receives from the user the designation of the extraction time indicating the length of the reproduction time of the partial audio information. Then, the audio information is extracted with the reproduction position after the extraction time from the start point position as the end point position, and partial audio information is created.

  In order to achieve the above object, the recording / reproducing apparatus of the present invention includes an operation unit that receives an operation instruction and a recording unit that records the reproduction information, and the extraction control unit is configured to perform the start position by the operation unit. Or receiving the designation of the extraction time, controlling the voice extraction unit to generate the partial voice information based on the received designation, and recording the generated partial voice information in the recording unit. It is said.

  According to this configuration, the recording / reproducing apparatus includes the operation unit that receives an operation instruction and the recording unit that records the recording / reproducing information. The extraction control unit accepts designation of the start point position or extraction time by the operation unit. Then, partial audio information is generated based on the accepted designation and recorded in the recording unit.

  In order to achieve the above object, the recording / reproducing apparatus of the present invention includes a determination unit that determines which of the predetermined types the reproduction information corresponds to, and the extraction control unit includes the determination unit. The extraction time is determined based on the discriminated type, and a reproduction position that is behind the start point position by the extraction time is set as the end point position.

  According to this configuration, the recording / reproducing apparatus includes the determination unit that determines whether the reproduction information corresponds to a predetermined type. In addition, the extraction control unit determines the extraction time based on the type determined by the determination unit, and sets the reproduction position that is behind this extraction time from the start point position as the end point position.

  Further, in order to achieve the above object, the extraction unit control provided in the recording / reproducing apparatus of the present invention is characterized in that a reproduction position behind the start point position and where a clap sound is detected is set as the end point position.

  According to this configuration, the extraction control unit generates partial audio information with the playback position behind the start point position and the applause sound detected as the end point position.

  In addition, in order to achieve the above object, the extraction control unit included in the recording / reproducing apparatus of the present invention includes, in the sound included in the generated partial sound information, a predetermined time before the end of the sound. It is characterized in that a fade-out effect is applied to the sound in the reproduction range.

  According to this configuration, the sound extraction unit performs a fade-out effect on the sound in the reproduction range ahead of the sound by a predetermined reproduction time from the sound included in the generated partial sound information.

  In order to achieve the above object, the recording / reproducing apparatus of the present invention is configured to accept, via the operation unit, settings relating to the audio used for determining the end point position, the extraction time, or the reproduction range for applying the fade-out effect. And the extraction control unit controls the voice extraction unit to generate the partial voice information based on the setting.

  According to this configuration, the recording / reproducing apparatus includes the setting unit that receives, via the operation unit, settings related to the sound used for determining the end point position, the extraction time, or the reproduction range for applying the fade-out effect. Further, the extraction control unit generates partial audio information based on this setting.

  According to the present invention, it is possible to realize a process of extracting a piece of music from reproduction information such as recorded data obtained by recording a broadcast program and creating an audio file with a simple user operation. In addition, since the start position and end position are determined based on the playback position where the volume increases beyond a predetermined value and the playback position where the applause sound is detected, the user needs to manually set the start position and end position in detail. There is no, and convenience improves. Even if the search for the end of the music fails, it is possible to create an audio file with a suitable length based on the type of playback information.

It is a block diagram which shows the structure of the function part with which the recording / reproducing apparatus which concerns on 1st embodiment of this invention is provided. It is a block diagram which shows the internal structure of the recording / reproducing apparatus which concerns on 1st embodiment of this invention. It is a flowchart which shows the audio | voice file creation process which concerns on 1st embodiment of this invention. It is a screen figure which shows the extraction point designation | designated screen which concerns on 1st embodiment of this invention. It is a block diagram which shows the structure of the function part with which the recording / reproducing apparatus which concerns on 2nd embodiment of this invention is provided. It is a block diagram which shows the internal structure of the recording / reproducing apparatus which concerns on 2nd embodiment of this invention. It is a flowchart which shows the audio | voice file creation process which concerns on 2nd embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings. In addition, embodiment shown here is an example and this invention is not limited to embodiment shown here.
<1-1. Internal configuration>

  FIG. 2 is a block diagram showing an internal configuration of the HDD recorder 1 (= recording / reproducing apparatus) according to the first embodiment of the present invention. 2 indicate the flow of image / audio data. Moreover, the straight line without an arrow has shown the communication bus for the control part 11 to transmit / receive the control signal etc. with respect to each apparatus.

  The HDD recorder 1 includes at least a control unit 11, a memory 12, an operation unit 13, a flash memory 14 (= recording unit), an HDD 15 (= recording unit), an optical disk drive 16, a broadcast receiving unit 17, and a signal processing unit 18 (= reproduction processing). Part), an OSD (On-Screen Display) processing part 19, and an external connection terminal 20. A display 2 exists as a display device connected by the external connection terminal 20.

  The control unit 11 controls the driving of each member of the HDD recorder 1 so as to perform overall control of image / sound reproduction processing, recording processing, output processing, and the like. For example, the control unit 11 includes a plurality of microprocessors. Moreover, the control part 11 is provided with the audio | voice extraction part 11a-the setting part 11c (FIG. 1) mentioned later as a function part implement | achieved by running a program on the arithmetic processing apparatus with which the control part 11 is provided.

  The memory 12 is a medium for temporarily recording various data held by the HDD recorder 1, and is composed of, for example, a writable RAM (Random Access Memory). The memory 12 has a role as a buffer memory for temporarily recording, for example, processing data when various kinds of information processing are performed by the control unit 11 and instruction commands received from the user.

  The operation unit 13 is used by the user to instruct the HDD recorder 1 to reproduce an image / sound. The operation unit 13 includes, for example, a plurality of buttons provided on the housing of the HDD recorder 1, a remote controller and a remote control signal receiving unit (not shown), and the like. The operation unit 13 receives user operations using these devices.

  When a user operation is accepted, the control unit 11 performs a reproduction process, a recording process, and the like based on the operation content. Note that the operation unit 13 of the present embodiment includes a file creation button and a start point button (not shown) described later. By pressing the file creation button, the user can start the process of creating an audio file from the content being played when the button is pressed.

  The flash memory 14 is a kind of EEPROM, and is a ROM that can be written / erased by a user of the device. Since the flash memory 14 can be written and erased while mounted on the circuit board, it is used for storing applications that require rewriting when used, for example, operation setting data of the apparatus, user-specific information, and the like.

  The HDD 15 is a magnetic recording medium that records digital data. In the present embodiment, it is mainly used for recording recording data (= reproduction information) generated from image / audio data included in a broadcast wave and an audio file created by a file creation button.

  The optical disk drive 16 is an optical device for optically reading various data from an optical disk such as a CD (Compact Disc) medium or a DVD (Digital Versatile Disc) medium. The optical disk drive 16 controls an optical pickup (not shown) to irradiate the optical disk with a light beam and read various information such as audio information and image information recorded on the optical disk. At this time, various controls such as drive control, focus control, and tilt control of the optical pickup are performed.

  The broadcast receiving unit 17 is connected to an external antenna (not shown) and performs digital / analog broadcast tuning, reception, frequency conversion, amplification, demodulation, and the like. The broadcast receiver 17 is configured to include an analog tuner, an image intermediate frequency amplifier circuit, a demodulator circuit, an amplifier circuit, and the like in the case of an analog system. In the case of a digital system, a digital tuner, an error correction unit, and the like are included.

  For example, when receiving a digital broadcast, a digital tuner included in the broadcast receiving unit 17 performs amplification and detection of the intermediate frequency signal. Thereby, TS (= Transport Stream) which is a digital signal of the MPEG2 system is acquired. Note that the TS is an audio PES (Packetized Elementary Stream), an image PES, and additional information of a plurality of programs divided into fixed-length TS packets and connected. The signal is supplied to the signal processing unit 18 and converted into an image / audio signal.

  The signal processing unit 18 inputs TS generated by the broadcast receiving unit 17 and digital data read from the optical disk mounted on the HDD 15 or the disk drive 16. Then, it is separated into an audio digital signal including audio information and an image digital signal including image information.

  The signal processing unit 18 reads, for example, an MPEG2 (Moving Picture Experts Group phase 2) file, which is a digital image / sound file, from the HDD 15 based on a user operation, and reads the read digital data as a sound digital signal including sound information. Then, it is separated into an image digital signal including image information. The digital signal obtained by decoding is applied to the external connection terminal 20.

  The OSD processing unit 19 is a functional unit that generates an image signal. The OSD processing unit 19 converts information to be output by the HDD recorder 1 into image data that can be visually recognized by the user, and generates an image signal for displaying the converted image data on the display 2. The generated image signal is output from the external connection terminal 20.

  The external connection terminal 20 is an interface composed of a plurality of input / output terminals including, for example, a high definition multimedia interface (HDMI) terminal and a universal serial bus (USB) terminal. The external connection terminal 20 uses these input / output terminals to connect the HDD recorder 1 and an external device such as the display 2 to input / output digital signals or analog signals.

The display 2 is a display device that includes a display unit, an operation unit, a control unit, and a connection unit. For example, a digital signal including image / sound is received via an HDMI cable connected to an HDMI terminal included in the connection unit. Then, the digital signal is combined and the image / sound is output.
<1-2. About the configuration of the function section>

  Here, the relationship among the functional units for the HDD recorder 1 according to the first embodiment of the present invention to perform the audio file creation processing will be described with reference to the block diagram of FIG.

  As shown in FIG. 1, the voice file creation process of the present invention is performed by the voice extraction unit 11a, the voice file creation unit 11b (= extraction control unit), and the setting unit 11c included in the control unit 11.

  The audio extraction unit 11a extracts audio information within a predetermined reproduction range from reproduction information including images / audio. Note that in order to perform extraction, it is necessary to specify in advance to the voice extraction unit 11a, a start point position that is a reproduction position at which extraction starts and an end point position that is a reproduction position at which extraction ends.

  The audio file creation unit 11b designates the start point position and the end point position to the audio extraction unit 11a. Also, an audio file (= partial audio information) is created from the extracted audio information and recorded in the HDD 15 or the like.

  When the audio file creation unit 11b detects that a predetermined button included in the operation unit 13, for example, an audio file creation start button is pressed and the start point button is pressed, the audio file creation unit 11b starts and stops from the playback position where the start point button is pressed. Measure the volume in the second range. Then, a playback position where the measured volume exceeds a predetermined threshold is searched.

  This search is performed, for example, by detecting a position where the decibel as an absolute value indicating the volume exceeds a threshold value. Or the form performed by detecting the position where the relative variation | change_quantity of the sound volume exceeded the predetermined amount and changed rapidly may be sufficient.

  When the search of the reproduction position exceeding the threshold is successful, this reproduction position is set as the start point position. If the search fails, the start point position designation screen 100 shown in FIG. 4 is displayed, and designation of the search range is accepted from the user. The image signal for displaying the start point position designation screen 100 is generated by the OSD processing unit 19. Then, the generated image signal is output to the display 2 via the external connection terminal 20. As a result, the start point position designation screen 100 is displayed on the display 2.

  The start position designation screen 100 includes a window 101, a playback time meter 102, a cursor 103, and a search range 104. The user can change the playback position by moving the cursor 103 within the range of the playback time meter 102 using the operation unit 13. That is, a fast forward operation and a rewind operation can be performed.

  The search range 104 indicates a range before and after a predetermined time from the current reproduction position, for example, a range of 10 seconds before and after. When the playback position is changed by the cursor 103, the position of the search range 104 is also moved around the position of the cursor 103. When a determination key included in the operation unit 13 is pressed while the cursor 103 is positioned at a predetermined reproduction position, a reproduction position whose volume exceeds the threshold is searched within the search range 104. If the search is successful, the playback position is set as the start position. If the search fails, the search is requested again, or the position of the cursor 103 is set as the start point position.

  In addition, the audio file creation unit 11b sets a reproduction position where a predetermined type of audio, for example, applause audio is detected behind the start point position, as an audio extraction end point position. As a method for detecting applause voice, for example, the waveform, wavelength, or frequency of the applause voice is investigated in advance and recorded in the flash memory 14 or the like, and is detected by comparing with the waveform, wavelength, or frequency of the reproduced voice. To do.

  When the audio file creation unit 11b generates an audio file from the extracted audio information, if the song list can be acquired from EPG or data broadcast of terrestrial digital broadcasting, the file is created from the song name included in the song list. The form which determines a name may be sufficient.

  The setting unit 11c receives various settings related to the sound file generation processing from the user. The setting information is recorded in the flash memory 14 or the HDD 15. The setting unit 11c receives settings related to audio information indicating audio used for determining the end point position, audio extraction time, or a reproduction range where a fade-out effect is applied, via the operation unit 13.

For example, the setting unit 11c accepts an input of an extraction time from the user in advance assuming that the applause sound is not detected. The audio file creation unit 11b sets the reproduction position that is behind this extraction time from the start point position as the end point position.
<1-3. About audio file creation processing>

  Here, an audio file creation process performed by the HDD recorder 1 according to the first embodiment of the present invention will be described with reference to the flowchart of FIG.

  The process shown in FIG. 3 is started when an instruction to execute an audio file creation process is detected in a state where the power source of the HDD recorder 1 is driven and the HDD recorder 1 is performing a reproduction process of reproduction information. Is done. The above execution instruction is issued, for example, when a creation start button included in the operation unit 13 is pressed.

  After the start of this process, the audio file creation unit 11b starts accepting the audio extraction time, that is, the specification of the length of the audio file to be generated by the operation unit 13 in step S110. Note that the designation of the extraction time is not always essential, and the process proceeds to the next step S120 when reception is started.

  Next, in step S120, the audio file creation unit 11b determines whether designation of the start point position of the audio file has been detected. The designation of the start point position is issued, for example, when a start point button included in the operation unit 13 is pressed. When the designation of the start point position is not detected, the process proceeds to step S110 again.

  If designation of the start point position is detected, the audio file creation unit 11b searches for a reproduction position whose volume exceeds the threshold value within a predetermined range before and after the designated start point position in step S130.

  Next, in step S140, the audio file creation unit 11b determines whether the above search has been successful. If the search is successful, the process proceeds to step S150 described later. In step S141, the audio file creation unit 11b that has failed to search displays the start point position designation screen 100 shown in FIG. 4 and requests manual designation of the search range. When the search range is manually designated, the process proceeds to step S150.

  Next, in step S150, the audio file creation unit 11b confirms the reproduction audio within the range of the specified time accepted in step S110 from the reproduction position searched above. Then, applause sound is detected from the reproduced sound.

  Next, in step S160, the audio file creation unit 11b determines whether or not the applause audio has been successfully detected. If the detection is successful, the audio file creation unit 11b sets the reproduction position where the clap sound is detected as the end position of the extraction process in step S170. Then, the voice extraction unit 11a is instructed to extract the voice between the start point position and the end point position. When the extraction by the voice extraction unit 11a is completed, the process proceeds to step S180 described later.

  If the detection of the applause voice fails, the audio file creation unit 11b sets a playback position that is backward from the start point position by the extraction time accepted in step S110 as the end point position in step S171. Then, the voice extraction unit 11a is instructed to extract the voice between the start point position and the end point position.

  Further, in step S172, the audio file creation unit 11b controls the OSD processing unit 19 to generate an image signal indicating that the extraction process has been performed based on the designated extraction time and output the image signal to the display 2. For example, a character image such as “detection of voice finished at a specified time” is generated and output. When the output ends, the process proceeds to step S180.

  Next, in step S180, the audio file creation unit 11b performs a fade-out effect, which is an effect of gradually decreasing the volume, on the reproduction end portion of the audio information extracted by the audio extraction unit 11a. Note that the term “end portion” refers to a range such as the last five seconds when the extracted audio information is reproduced, for example, as the end portion. When the fade-out process is completed, the audio information subjected to the fade-out process is recorded in the HDD 15 as an audio file, and this process ends.

  According to the present embodiment described above, a simple operation using the creation start button and the start point button when the user's favorite music is started to be reproduced while the user is reproducing and viewing the reproduction information. You can create an audio file with only one song.

Further, according to the present embodiment, since the start position and the end position are determined based on the playback position where the volume exceeds the threshold and the playback position where the applause sound is detected, the user manually starts and ends the position. It is not necessary to set the details in detail, and the range can be specified with a simple operation, improving convenience.
[Embodiment 2]

Next, a second embodiment of the present invention will be described.
<2-1. Internal configuration>

As shown in FIG. 6, the first HDD recorder 1 of the present embodiment is connected to the mobile phone 3 through an external connection terminal 20 so that mutual communication is possible. Other configurations are the same as those in the first embodiment, and thus description thereof is omitted here.
<2-2. About the configuration of the function section>

  As shown in FIG. 5, the first HDD recorder 1 of this embodiment includes a genre discriminating unit 11d (= discriminating unit) and a file transfer unit 11e in addition to the functional units of the first embodiment. The function of the audio file creation unit 11b is partially different from that of the first embodiment.

  The genre determination unit 11d acquires genre information of the reproduction information to be extracted, and determines the extraction time according to the genre (= type) indicated by the genre information. It is assumed that the genre information is acquired from, for example, an EPG at the time of recording and is included in the recording data.

  Further, the length of the extraction time corresponding to the genre is assumed to be determined in advance, for example, at the time of production of the HDD recorder 1 or at the time of factory shipment, and recorded in the HDD recorder 1. Or the form which the setting part 11c receives from the user the setting regarding the length of extraction time according to a genre may be sufficient. In this case, the received content is recorded as setting information in the flash memory 14 or the like.

  When a sound file is generated from the extracted sound, the file transfer unit 11e transmits the sound file to a predetermined external device such as the mobile phone 3 shown in FIG. As a result, the audio file is transferred without requiring a user operation. It is assumed that various settings relating to the transfer destination of the audio file are received in advance by the setting unit 11c from the user and recorded in the flash memory 14 or the like as setting information.

The audio file creation unit 11b according to the present embodiment does not accept extraction time designation (step S110 in FIG. 3) when an audio file creation start instruction is detected. Instead, the genre information of the reproduction information is acquired using the genre discriminating unit 11d, and extraction is performed based on the extraction time determined by the genre discriminating unit 11d.
<2-3. About audio file creation processing>

  Here, an audio file creation process performed by the HDD recorder 1 according to the second embodiment of the present invention will be described with reference to the flowchart of FIG. In addition, about the process of the same content as FIG. 3 of 1st embodiment, description shall be abbreviate | omitted by adding the same step number.

  If no applause sound is detected in step S160 after step S120 to step S160, the genre determination unit 11d acquires genre information indicating the genre of the recorded data being reproduced in step S173, and determines the genre. . Then, the extraction time corresponding to the determined genre is given to the audio file creation unit 11b.

  Next, in step S174, the voice file creation unit 11b instructs the voice extraction unit 11a to perform extraction with the extraction time given above. Further, in step S175, the audio file creating unit 11b generates an image signal indicating that the extraction process has been performed with the extraction time based on the genre by the OSD processing unit 19 and outputs the image signal to the display 2.

  For example, a character image such as “speech extraction performed for classic music extraction time” is generated and output. When the output ends, the process proceeds to step S180, and an audio file subjected to fade-out processing is generated.

  Next, the file transfer part 11e transmits the produced | generated audio | voice file to the mobile telephone 3 using the external connection terminal 20 in step S190. When the transmission process is completed, this process ends. Note that an image signal indicating that the transfer has succeeded or failed may be generated by the OSD processing unit 19 and output to the display 2.

According to the present embodiment described above, it is possible to create an audio file having a suitable length based on the genre of recorded data even when the search for the end of the music has failed. In addition, the created audio file can be transferred to a playback device such as the mobile phone 3 without requiring user operation.
[Other embodiments]

  The present invention has been described with reference to the preferred embodiments and examples. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea. be able to.

  Therefore, the present invention can also be applied to the following embodiments.

  (A) In the above embodiment, the HDD recorder 1 is taken as an example of the recording / reproducing apparatus. However, the present invention may be implemented using a recording / reproducing apparatus other than this. For example, a form using a DVD (Digital Versatile Disc) player, a VCR (Video Cassette Recorder), a television apparatus having a recording function, or the like may be used.

  (B) In the above embodiment, each functional unit related to the sound file creation processing of the present invention is realized by executing a program on an arithmetic processing unit such as a microprocessor. However, each functional unit includes a plurality of circuits. It may be a form realized by.

  (C) In the above-described embodiment, the configuration in which each functional unit related to the audio file creation processing of the present invention is provided in the HDD recorder 1 has been described as an example, but some of them are connected via a network. It may be realized by an external device. For example, the processing for determining the genre of the recorded data may be performed by an external information processing server (not shown) instead of the genre determining unit 11d.

  (D) In the above embodiment, the explanation is given by taking the case where the recorded data is being reproduced as an example of the timing at which the audio file is created. However, the audio file may be created at other timings. For example, an audio file may be created by pressing a creation start button in a state where follow-up playback is being performed during recording of recorded data.

  (E) In the above embodiment, the sound file is generated by extracting the sound from the recorded data recording the broadcast program. However, the sound file may be generated by extracting the sound from other data. For example, an audio file may be generated by extracting audio from a concert video or movie recorded on an optical disk such as a DVD.

  (F) In the above embodiment, the fade-out effect is applied to the end of the generated audio file. However, an audio processing process may be applied to other portions. For example, a fade-in effect may be applied to the playback start portion of the audio file. Alternatively, it may be determined whether or not a predetermined sound such as applause sound, noise, or emergency early warning sound is detected at the time of extracting the sound, and if detected, the sound is deleted and a sound file is created. Alternatively, the reproduction range in which these are detected may not be extracted as a sound file creation target.

  (G) In the above embodiment, the time until the extraction process is completed at the time of extracting the audio file is not particularly defined, but the extraction is performed while reproducing at a constant speed, or the double speed reproduction function is used. Alternatively, the user may specify whether to perform extraction in a time shorter than the reproduction time, and the extraction method may be changed based on the specification.

1 HDD recorder (recording and playback device)
11 Control unit 11a Audio extraction unit 11b Audio file creation unit (extraction control unit)
11c setting unit 11d genre discrimination unit (discrimination unit)
11e File transfer unit 12 Memory 13 Operation unit 14 Flash memory (recording unit)
15 HDD (recording unit)
16 Optical disk drive 17 Broadcast receiving section 18 Signal processing section (reproduction processing section)
19 OSD processing unit 20 External connection terminal

Claims (7)

A playback processing unit for playing back playback information including audio information;
In a recording / reproducing apparatus including an audio extraction unit that generates partial audio information obtained by extracting a part of audio information included in the reproduction information,
A playback position where the playback volume exceeds a threshold value within a playback time within a predetermined range from the playback position in response to designation of an arbitrary playback position from the playback time axis when the playback information is played back by the playback processor As a start point position, a playback position at which a predetermined playback sound is detected behind the start point position as an end point position, and audio information in a range between the start point position and the end point position is extracted and the part is extracted. A recording / reproducing apparatus comprising: an extraction control unit that controls the audio extraction unit to generate audio information. The extraction control unit accepts designation of an extraction time indicating a length of a reproduction time of the partial audio information, and generates the partial audio information with a reproduction position that is behind the extraction time by the extraction time as the end point position. The recording / reproducing apparatus according to claim 1, wherein the sound extraction unit is controlled. An operation unit for receiving operation instructions;
A recording unit for recording the reproduction information,
The extraction control unit receives designation of the start point position or the extraction time by the operation unit, controls the voice extraction unit to generate the partial voice information based on the accepted designation, The recording / reproducing apparatus according to claim 2, wherein partial audio information is recorded in the recording unit. A determination unit that determines which of the predetermined types the reproduction information corresponds;
The extraction control unit determines the extraction time based on the type determined by the determination unit, and sets a reproduction position that is behind the start point position by the extraction time as the end point position. The recording / reproducing apparatus described in 1. The recording / reproducing apparatus according to any one of claims 1 to 4, wherein the extraction unit control uses a reproduction position behind the start point position and a sound of applause as the end point position. The extraction control unit applies a fade-out effect to audio in a playback range ahead of a predetermined playback time from the end of the audio among the audio included in the generated partial audio information. The recording / reproducing apparatus in any one of Claims 1-5. A setting unit that accepts settings related to the audio used to determine the end point position, the extraction time, or the reproduction range for applying the fade-out effect, via the operation unit;
The recording / reproducing apparatus according to claim 6, wherein the extraction control unit controls the audio extraction unit to generate the partial audio information based on the setting.

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