JP2016187136A - Receiving device, receiving method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to recognize a dialog voice to promote the use thereof.SOLUTION: A dialog detection part detects voice data of a dialog voice to be reproduced in a predetermined channel from received voice data on the basis of additional information on a voice in a broadcast program. A volume control part controls the volume of a channel, of a plurality of channels, dedicated to dialog for reproducing the dialog voice and the volume of the other channels. A notification processing part outputs notification information on the dialog voice detected by the dialog detection part.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a receiving device, a receiving method, and a program.

  In digital television broadcasting, it has been considered to provide a dialog dedicated channel that enables volume control independent of other channels for some channels of multi-channel audio. Dialog audio is provided as a part of the program to the dialog dedicated channel. The dialog voice compatible receiving apparatus recognizes that dialog voice is provided, and enables volume adjustment for the dialog dedicated channel separately from volume adjustment for all channels. This allows the user to adjust the volume of the dialog voice to a desired level that is easy to hear.

  For example, Patent Literature 1 is combined with a dialog volume control unit, a main volume control unit, a dialog volume control unit, and a main volume control unit, and a dialog volume adjustment signal and a main volume for individually adjusting the dialog volume and the main volume. An apparatus is described that includes a circuit portion configured to individually generate a volume control signal.

Special table 2010-515290

  However, in the conventional dialog sound compatible receiving device, there is no means for the user to know that a dialog compatible broadcast, which is a broadcast that provides dialog sound, is provided. Further, it has not been recognized that the dialog sound can be adjusted separately from the sound other than the dialog sound in the dialog-compatible broadcast. Furthermore, even if the user notices the dialog-compatible broadcast, the intention of the program producer or broadcaster to provide the dialog sound cannot be known. For this reason, there is a case where the user cannot determine how to handle the dialog voice.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a receiving device, a receiving method, and a program that allow a user to recognize a dialog voice and promote the use.

  According to one aspect of the present invention, a dialog detection unit that detects audio data of dialog audio to be reproduced on a predetermined channel from received audio data based on auxiliary information related to audio of a broadcast program, and the dialog audio of a plurality of channels is detected. The receiving apparatus includes a volume control unit that controls a volume of a dedicated channel for dialog to be reproduced, a volume of other channels, and a notification processing unit that outputs notification information about the dialog sound detected by the dialog detection unit.

  According to one embodiment of the present invention, the user can be made aware of the dialog voice and promote the use.

1 is a schematic block diagram of a broadcasting system according to a first embodiment. It is a figure for demonstrating a dialog audio | voice. It is a figure for demonstrating volume adjustment of a dialog sound. It is a figure which shows the example of the stream of audio | voice data. It is a figure which shows the data structure of auxiliary information. It is a figure which shows the example of a dialog classification | category table. It is a figure which shows the example of a dialog classification | category default table. It is a schematic block diagram which shows the structure of the receiver which concerns on 1st Embodiment. It is a flowchart which shows the reception process which concerns on 1st Embodiment. It is a figure which shows an example of the notification screen which concerns on 1st Embodiment. It is an external view which shows an example of a remote controller. It is a figure which shows the other example of the notification screen which concerns on 1st Embodiment. It is a figure which shows the further another example of the notification screen which concerns on 1st Embodiment. It is a figure which shows the example of the other form of the notification information which concerns on 1st Embodiment. It is a figure which shows the example of the further another form of the notification information which concerns on 1st Embodiment. It is a figure which shows the example of a display to the other apparatus of the notification information which concerns on 1st Embodiment. It is a schematic block diagram of the broadcasting system which concerns on 2nd Embodiment. It is a schematic block diagram which shows the structure of the receiver which concerns on 2nd Embodiment.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic block diagram of a broadcast system 1 according to the present embodiment.
The broadcast system 1 includes a transmission device 10 and a reception device 30. In the broadcast system 1, there can generally be a plurality of transmission devices 10 and a plurality of reception devices 30, respectively. However, in the following, for the sake of brevity, an example in which the number of transmitting apparatuses 10 and the number of receiving apparatuses 30 are one is taken as an example.

  The broadcast system 1 is a system that transmits program data indicating content constituting a broadcast program using a predetermined multiplexing / transmission method. The content is a component of a broadcast program such as audio and video, and is information presented by the receiving device 30. The program data includes audio data indicating the sound of the broadcast program and video data indicating the video. In the following description, as an example of the multiplexing / transmission method, a method mainly defined in the MPEG-2 (Moving Picture Experts Group-2) system is used as an example.

  The transmission apparatus 10 acquires program data and configuration information indicating the configuration of the broadcast program, and generates multiplexed data in which the acquired program data and additional information are multiplexed using a predetermined multiplexing method. The acquired program data is data including encoded audio data and encoded video data. The transmission device 10 multiplexes audio data and video data streams as elementary streams (ES: Elementary Stream), respectively, and generates a transport stream (TS: Transport Stream) as program data. In the present embodiment, the dialog sound is included in the content of the broadcast program. The dialog sound is sound that is reproduced on a predetermined channel among the sound of a plurality of channels (multi-channel sound). The dialog sound may be transmitted in the same stream as normal broadcast sound (broadcast sound) or may be transmitted in a separate stream. The dialog sound will be described later.

  The configuration information includes program information indicating content that is a component of each broadcast program, and program information related to each broadcast program, such as the name of the broadcast program, the broadcast date and time, the genre of the broadcast program, and the performers. The transmission device 10 multiplexes a program map table (PMT: Program Map Table) indicating program information and an event information table (EIT: Event Information Table) indicating program information, and program specific service information (PSI / SI) as configuration information. : Program Specific Information / Service Information). The transmission device 10 multiplexes program data and configuration information to generate multiplexed data. The transmission device 10 transmits a broadcast wave carrying the generated multiplexed data to the reception device 30 via the broadcast transmission path 11. The transmission device 10 is, for example, a transmission device that constitutes broadcast facilities of a broadcaster.

  The broadcast transmission path 11 is a transmission path for unilaterally transmitting various data to a plurality of receiving devices 30 at the same time. The broadcast transmission path 11 includes a broadcast satellite 12. The broadcast satellite 12 is equipped with a relay device (not shown) that relays the broadcast wave transmitted by the transmission device 10 and transmits the relayed broadcast wave to the reception device 30. The broadcast transmission path 11 may include a communication line, for example, a communication network that connects the transmission device 10 to the transmission antenna in a wired or wireless manner. The transmission (transmission, reception) of various data via the broadcast transmission path 11 is referred to as “transmission (transmission, reception)”.

  The receiving device 30 is an electronic device that can receive multiplexed data from the transmitting device 10 via the broadcast transmission path 11 and present broadcast program content represented by program data included in the received multiplexed data. The receiving device 30 reproduces the audio indicated by the audio data separated from the multiplexed data based on the configuration information, and displays the video indicated by the video data. The receiving device 30 is, for example, a television receiver or other electronic device having a receiving function for television broadcasting.

  The receiving device 30 detects that the multi-channel sound indicated by the sound data is sound data including dialog sound based on the auxiliary information added to the sound data. The receiving device 30 controls the volume of the dedicated channel for reproducing the dialog sound among the plurality of channels and the volume of the other channels, and outputs notification information regarding the detected dialog sound. The user who has received the notification information can notice the presence of the dialog voice. In addition, by including guidance information related to the adjustment of the volume of the dialog dedicated channel in the notification information, the user can be notified that the volume of the dialog sound can be adjusted independently of the other channels and the adjustment method. In addition, by including commentary information related to the dialog sound in the notification information, for example, it is possible to let the user know the intention that the broadcaster or the program producer provided the dialog sound and the outline and significance of the dialog sound.

(Dialog voice)
Next, dialog voice will be described.
FIG. 2 is a diagram for explaining dialog voice.
Dialog sound is sound reproduced using a predetermined channel among a plurality of channels. Dialog audio is typically used as part of surround audio with more channels than 2ch. A dialog is a word that originally means a dialogue for a performance such as a drama or a movie. In this embodiment, a dialogue voice is not limited to a dialogue but is mainly a voice spoken by a human or a synthesized voice. Thus, it also includes audio representing the contents, points, meaning, background, etc. of the broadcast program. The dialog sound includes commentary sound of programs such as sports broadcasts, performance programs, and news programs. In addition, the dialog voice may be provided as a foreign language voice spoken in a foreign language or a multilingual voice including them. Dialog voices may also be used to supplement perceptual disturbances such as visual impairment and hearing impairment. As the audio for visual impairment, for example, commentary audio representing information represented by the video is used. As the sound for hearing impairment, for example, a voice having a slower utterance speed than a normal voice or a voice having a louder volume than a normal voice is used.

  FIG. 2 shows an example in which the receiving apparatus 30 uses surround 5.1ch as a multi-channel audio reproduction method. Surround 5.1ch is based on a predetermined listening position Os as a front front (C: Center), front left (L: Left), front right (R: Right), rear left (LS: Left Surround), rear right ( This is a reproduction method using five speakers installed in RS (Right Surround) and a speaker dedicated to low-frequency effect sound (LFE), which is a sound of a frequency band lower than a predetermined frequency. Each channel or speaker of front front (C), front left (L), front right (R), rear left (LS), rear right (RS), and low-frequency sound effect (LFE) is FC (Front Center). , FL (Front Left), FR (Front Right), SL (Surround Left), SR (Surround Right), and SW (Sub-woofer).

  As a dialog-dedicated channel, which is a channel for reproducing dialog sound, the front front (C) channel is usually used, and the low-frequency effect sound (LFE) channel is not used. This is to allow the user to perceive the dialog sound in front of the user so that the contents of the dialog and the commentary sound represented by the dialog sound can be clearly understood. Therefore, by using a voice having a predetermined content as a dialog voice, the user can easily grasp the content. For example, dialog voices are intended to focus on the contents according to various requirements such as the user's language and preferences, to supplement the user's hearing, and to reduce the influence of the viewing environment such as reverberation and noise. Expected to be used.

(Adjust volume of dialog voice)
Next, the volume adjustment of the dialog sound will be described.
FIG. 3 is a diagram for explaining the volume adjustment of the dialog sound.
The receiving apparatus 30 individually controls the volume of the dialog dedicated channel for reproducing the dialog sound among the plurality of channels and the volume of the other channels. In the example shown in FIG. 3, the volume of the dialog-dedicated channel is specified by a relative level that is a difference from the volume of other channels. The vertical axis and the horizontal axis indicate the volume level and the relative level, respectively. FIG. 3 shows the volume levels of the dialog dedicated channel and other channels when the relative levels are +10 dB, +7 dB, 0 dB, and −3 dB in order from left to right. The volume level of the dialog-dedicated channel and the volume level of the other channels are each represented by a solid bar graph.

  In the example shown in FIG. 3, the reference value of the sound volume level common to all channels is 0 dB, and the sound volume level is controlled so as not to exceed the reference value regardless of the relative level. When the relative level is higher than 0 dB, the volume level of the dialog-dedicated channel is fixed to the reference value, and the volume of the other channels decreases as the relative level increases. When the relative level is less than 0 dB, the volume of the other channels is fixed to the reference value, and the volume of the dialog dedicated channel is lower as the relative level is lower. For example, when the relative level is +10 dB, the volume levels of the dialog dedicated channel and the other channels are 0 dB and −10 dB, respectively. When the relative level is −3 dB, the volume levels of the dialog dedicated channel and the other channels are −3 dB and 0 dB, respectively. Hereinafter, the sound volume level of the dialog dedicated channel is referred to as the dialog volume, the volume level of the other channels is referred to as the other channel volume, and the volume level common to all the channels is referred to as the channel common volume.

(Audio data stream)
Next, a stream of audio data will be described.
FIG. 4 is a diagram illustrating an example of a stream of audio data. In the present embodiment, the audio data stream transmitted by the transmission device 10 is a bit stream configured by adding additional information to encoded audio data. FIG. 4 shows an example in which a stream of audio data is configured in a LATM / LOAS (Low-overhead MPEG-4 Audio Transport Multiplex / Low Overhead Audio Stream) stream format. The LATM / LOAS stream format includes LOAS, LATM header, SCE1 (Single Channel Element 1), CPE1 (Channel Pair Element 1), CPE2, LFE, PCE (Program Configuration Element), DSE (Dam (Tem), DSE (Dam) Each area.

  The LATM header includes channel setting information (channelConfiguration) as audio setting information (Audio Specific Config) regarding the encoded audio data. In the channel setting information, a setting value indicating a reproduction method (audio mode) is specified as a setting value. For example, the set value “6” indicates 5.1ch surround, and the set value “13” indicates 22.2ch surround. SCE1, CPE1, CPE2, and LFE store encoded audio data. SCE1 and LFE store audio data of the front front (C) and low-frequency effect sound (LFE) channels, respectively. CPE1 stores the audio data of the front left (L) and front right (R) channels, and CPE2 stores the audio data of the rear left (LS) and rear right (RS) channels. The PCE stores element configuration information indicating the correspondence between SCE1, CPE1, CPE2, and LFE and each channel, and the presence or absence of dialog information. That is, element configuration information and auxiliary information are added as additional information to the audio data included in the stream.

  The presence / absence of dialog information is specified by the setting value of the auxiliary information element (num_assoc_data_element) as a data element (Data Element) included in the element configuration information. For example, the setting value “1” indicates that dialog information is specified in the DSE, and the setting value “0” indicates that dialog information is not specified in the DSE. The DSE stores auxiliary information (MPEG4_ancillary_data) describing dialog information as bitstream syntax.

Next, the data structure of auxiliary information will be described.
FIG. 5 is a diagram illustrating a data configuration of auxiliary information. The auxiliary information includes dialog existence information (ext_dialogue_status), dialog classification information (dialogue_category_code), and dialog classification default gain information (dialogue_category_default_gain).
In the dialog presence information, a setting value indicating the presence or absence of dialog sound is specified as a setting value. For example, the setting value “1” indicates that there is a dialog voice. The setting value “0” indicates that there is no dialog sound. In the dialog classification information, a setting value indicating a classification (genre) to which the dialog sound belongs is specified as a setting value. In the dialog category default gain information, a setting value indicating a default gain to be given to dialog sounds belonging to the category specified as the setting value is specified. Specifically, the default gain is a relative level or an amplification factor given to the dialog voice without receiving an instruction from the user.

Next, an example of a dialog classification table indicating the classification for each specified value specified by the dialog classification information will be described.
FIG. 6 is a diagram illustrating an example of the dialog classification table. In the example shown in FIG. 6, the setting values “0000”, “0001”, “0010”, “0011”, and “0100” are “Hearing impairment”, “Visual impairment”, “Sports commentary”, and “Entertainment commentary”, respectively. ”,“ Other explanation ”. The receiving device 30 can specify the classification corresponding to the designated set value as the classification to which the dialog voice belongs by referring to the dialog classification table.

Next, an example of a dialog classification default gain table indicating classification for each designated value specified by the dialog classification default gain information will be described.
FIG. 7 is a diagram illustrating an example of the dialog classification default table. In the example illustrated in FIG. 7, the set values “0011”, “0101”, “1000”, and “1010” are “0.251”, “0.501”, “1”, and “1.995” as amplification factors, respectively. Is shown. These amplification factors correspond to relative levels of -12 dB, -6 dB, 0 dB, and +6 dB, respectively. The receiving device 30 can specify the default gain or relative level corresponding to the specified set value as the initial gain or relative level given to the dialog sound by referring to the dialog classification table.

(Receiver configuration)
Next, the configuration of the receiving device 30 will be described.
FIG. 8 is a schematic block diagram illustrating a configuration of the receiving device 30 according to the present embodiment.
The receiving device 30 includes a broadcast receiving unit 31, a loudspeaker unit 33, an input / output unit 34, a display unit 35, a storage unit 36, and a control unit 37.

The broadcast receiving unit 31 receives a broadcast wave carrying multiplexed data from the transmission device 10 via the broadcast transmission path 11. The broadcast receiving unit 31 is, for example, a tuner. The broadcast receiving unit 31 outputs a reception signal based on a broadcast wave received via the broadcast transmission path 11 to the control unit 37.
The loudspeaker 33 reproduces sound based on the sound signal input from the controller 37. The loudspeaker 33 includes, for example, a plurality of speakers. Individual speakers are used to reproduce the sound of each channel. The loudspeaker 33 can reproduce 5.1ch surround sound by providing six speakers.

The input / output unit 34 acquires an operation signal corresponding to a user's operation input, and outputs the acquired operation signal to the control unit 37. The input / output unit 34 may be configured to include physical members such as switches, buttons, and knobs, or may be configured to include general-purpose members such as a mouse and a touch sensor. Further, the input / output unit 34 may include an input / output interface or a communication interface that receives an operation signal transmitted from another device wirelessly or by wire and outputs the input operation signal to the control unit 37. Good. The other devices are electronic devices such as a dedicated remote control device (remote controller) and a general-purpose mobile phone (including a so-called smartphone), for example. The other device may be an electronic device including a display unit that displays various types of information output from the control unit 37 via the input / output unit 34.
The display unit 35 displays the video indicated by the video signal acquired from the control unit 37. The display unit 35 is a display such as a liquid crystal display or an organic EL (Electro-Luminescence) display.

The storage unit 36 includes a storage medium such as a RAM (Random Access Memory) and a ROM (Read-only Memory). Other storage media may include non-volatile memory, HDD (Hard Disk Drive), and the like. Consists of. The storage unit 36 stores various programs describing processes executed by the control unit 37, various data used for the processes, and various data generated by the processes. For example, the storage unit 36 stores a video signal indicating a video of a broadcast program and a video signal indicating various kinds of notification information.
As will be described later, another device or display unit 35 connected by the loudspeaker unit 33 and the input / output unit 34 functions as a notification unit 38 that presents notification information input from the control unit 37.

  The control unit 37 controls the operation of the receiving device 30. The control unit 37 includes a demodulation unit 371, a separation unit 372, an audio processing unit 373, and a notification processing unit 374. The audio processing unit 373 includes an audio decoding unit 3731, an additional information analysis unit 3732, a dialog detection unit 3733, and a volume control unit 3734. The video processing unit 375 includes a video decoding unit 3751 and a display synthesis unit 3752. The control unit 37 includes a control device such as a CPU (Central Processing Unit) that executes various processes and the storage medium described above. The control unit 37 may read a control program stored in advance in a storage medium, and execute processing instructed by a command described in the read control program. With this execution, the functions of the demodulation unit 371, the separation unit 372, the audio processing unit 373, and the notification processing unit 374 are realized.

  The demodulator 371 demodulates the received signal input from the broadcast receiver 31 using a predetermined demodulation method (for example, QPSK: Quadrature Phase Shift Keying). The demodulation method used in the demodulation unit 371 is a demodulation method corresponding to the modulation method used in the transmission device 10. Demodulation section 371 outputs multiplexed data obtained by demodulation to separation section 372.

  The demultiplexing unit 372 receives multiplexed data transmitted by broadcasting from the demodulation unit 371. The separation unit 372 extracts configuration information (PSI / SI) and program data (TS) from the multiplexed data transmitted by broadcasting. The separation unit 372 separates an audio data stream (ES) and a video data stream (ES), which are elements of program data, based on program information (PMT) included in the configuration information. The separation unit 372 outputs the separated audio data stream to the audio decoding unit 3731 and the additional information analysis unit 3732, and outputs the video data stream to the video decoding unit 3751.

  The audio decoding unit 3731 extracts audio data for the number of channels specified by the channel specification information from the audio data stream input from the separation unit 372. The audio decoding unit 3731 decodes the audio data of each channel using a predetermined audio decoding method (for example, MPEG-4 AAC), and outputs the audio signal of each channel obtained by the decoding to the volume control unit 3734.

  The additional information analysis unit 3732 analyzes the additional information added to the audio data in the audio data stream input from the separation unit 372, and determines the presence or absence of dialog information. Specifically, the additional information analysis unit 3732 reads the set value specified in the auxiliary information element of the element configuration information set in the element configuration information as additional information included in the stream. The additional information analysis unit 3732 determines that there is dialog information when the read setting value is “1”, and determines that there is no dialog information when the read setting value is “0”. When determining that there is dialog information, the additional information analysis unit 3732 reads auxiliary information describing the dialog information from the audio data stream, and outputs the read auxiliary information to the dialog detection unit 3733.

The dialog detection unit 3733 detects the dialog voice based on the auxiliary information input from the additional information analysis unit 3732. Specifically, the dialog detection unit 3733 reads the dialog presence information set in the auxiliary information. The dialog detection unit 3733 determines that there is a dialog sound when the read setting value is “1”, and determines that there is no dialog sound when the read setting value is “0”. When the dialog detection unit 3733 determines that there is a dialog sound, the dialog detection unit 3733 outputs the dialog presence information to the notification processing unit 374. In this case, the dialog detection unit 3733 outputs the dialog classification default gain information read from the auxiliary information to the volume control unit 3734.
The dialog detection unit 3733 determines that there is dialog sound when the additional information analysis unit 3732 determines that there is dialog information, and determines that there is no dialog sound when it is determined that there is no dialog information. Also good.

  The volume control unit 3734 controls the volume related to the audio signal of each channel input from the audio decoding unit 3731. When it is determined that there is dialog sound, the volume control unit 3734 individually controls the volume of the dialog dedicated channel and the volume of other channels based on the operation signal input from the input / output unit 34. Specifically, the volume control unit 3734 determines the dialog volume and the other channel volume based on the relative level specified by the operation signal and the common channel volume as described above with reference to FIG. Then, the volume control unit 3734 multiplies the signal value of the audio signal of the dialog dedicated channel by the amplification factor corresponding to the dialog volume, and multiplies the signal value of the other channel audio signal by the amplification factor corresponding to the other channel volume. The volume control unit 3734 outputs the audio signal of each channel whose volume is controlled to the loudspeaker unit 33, thereby reproducing the sound of each channel.

  However, the volume control unit 3734 determines the default dialog volume based on the dialog classification default gain information. Specifically, the volume control unit 3734 refers to the dialog classification default gain information stored in advance in the storage unit 36, and reads the relative level corresponding to the setting value specified by the dialog classification default information. When the read relative level is 0 dB or more, the volume control unit 3734 sets the dialog volume to a predetermined reference value (eg, 0 dB), and obtains the other channel volume by subtracting the relative level from the predetermined reference value. Set to the value to be. When the read relative level is less than 0 dB, the volume control unit 3734 sets the dialog volume to a value obtained by adding the relative level to a predetermined reference value, and sets the other channel volume to a predetermined reference value. Then, the volume control unit 3734 multiplies the signal value of the audio signal of the dialog dedicated channel by the amplification factor corresponding to the dialog volume, and multiplies the signal value of the other channel audio signal by the amplification factor corresponding to the other channel volume.

  Regardless of the presence or absence of the dialog voice, the volume control unit 3734 controls the volume of all channels simultaneously based on the common channel volume indicated by the operation signal. When it is determined that there is no dialog sound, the volume control unit 3734 does not perform volume control based on the relative level.

  The notification processing unit 374 outputs the notification information related to the dialog sound directly or indirectly to the notification unit 38 in response to the input of the dialog presence information from the dialog detection unit 3733. For example, the notification processing unit 374 reads the notification screen data stored in advance in the storage unit 36, and outputs the read notification screen data to the display synthesis unit 3752, thereby displaying the notification screen indicated by the notification screen data. 35. The notification screen may include, for example, provision of dialog sound in a broadcast program, guidance on an operation method related to adjustment of dialog volume, and explanation about dialog sound as notification information regarding dialog sound. When attribute information indicating the attribute of the dialog voice is input from the dialog detection unit 3733, the notification processing unit 374 sends notification information associated with the attribute information or notification information to which the attribute information is added to the notification unit 38. It may be output. As attribute information, for example, there is dialog language information indicating the language of dialog classification information and dialog sound described above. Dialog language information (dialogue_main_lang_code) described in the auxiliary information can be used as the dialog language information. The dialog detection unit 3733 extracts the dialog language information from the auxiliary information. An example of the notification information will be described later.

The video decoding unit 3751 extracts video data from the video data stream input from the separation unit 372. The video decoding unit 3751 decodes the extracted video data using a predetermined video decoding method (for example, MPEG-2 video), and generates decoded video data. The decoded video data is data indicating signal values forming a video (frame image) at each time. The video decoding unit 3751 outputs the decoded video data to the display synthesis unit 3752.
The display synthesis unit 3752 synthesizes the video indicated by the video data input from the video decoding unit 3751 and the screen indicated by the notification screen data or other screen data input from the notification processing unit 374. The display synthesis unit 3752 outputs display data indicating the synthesized video obtained by synthesis to the display unit 35.

(Receiving method)
Next, the reception process according to the present embodiment will be described.
FIG. 9 is a flowchart showing a reception process according to the present embodiment.
(Step S101) The separation unit 372 separates a stream of audio data from the multiplexed data based on program information included in the multiplexed data transmitted by broadcasting. Thereafter, the process proceeds to step S102.
(Step S102) The additional information analysis unit 3732 analyzes the additional information added to the audio data from the separated audio data stream, and determines the presence or absence of the dialog information. When determining that there is dialog information, the additional information analysis unit 3732 extracts auxiliary information describing the dialog information. Thereafter, the process proceeds to step S103.
(Step S103) The audio decoding unit 3731 decodes audio data of each channel included in the audio data stream, and acquires an audio signal. Thereafter, the process proceeds to step S104.

(Step S104) The dialog detection unit 3733 determines the presence or absence of dialog sound based on the dialog presence information included in the extracted auxiliary information. When it is determined that there is a dialog voice (YES in step S104), the process proceeds to step S105. When it is determined that there is no dialog sound (NO in step S104), the process shown in FIG.
(Step S <b> 105) The notification processing unit 374 outputs notification information related to the dialog sound to the notification unit 38. The notification unit 38 notifies the notification information from the notification processing unit 374. Thereafter, the process proceeds to step S106.
(Step S106) The volume control unit 3734 determines the default dialog volume based on the dialog classification default gain information included in the auxiliary information for the voice of the dialog dedicated channel among the voices indicated by the voice data of each channel. The volume control unit 3734 controls the volume of the dialog dedicated channel and the volume of other channels based on the operation signal. The loudspeaker 33 reproduces the sound of each channel whose volume is controlled. Thereafter, the process shown in FIG. 9 ends.

(Example of notification information)
Next, an example of notification information notified by the notification unit 38 will be described.
FIG. 10 is a diagram illustrating an example of a notification screen according to the present embodiment. The notification screen illustrated in FIG. 10 is displayed in an area within a predetermined range from the lower right end of the display area of the display unit 35. By being displayed in this area, visual recognition by the user is not hindered. A message Mg1 included in the notification screen is included. The first sentence of the message Mg1 “There is a dialog for theater commentary in this broadcast” indicates that a dialog sound indicating the content of the classification belonging to the theater commentary is included in the broadcast program. The second sentence of message Mg1 “If you want to listen to theatrical commentary, press the dialog button to adjust the volume” is a guide to show that the dialog volume can be adjusted and how to operate it. It is an example of information.

  When displaying the notification information including the dialog classification information, the notification processing unit 374 adds the dialog classification information from the dialog detection unit 3733 to the notification screen data read from the storage unit 36, and the notification screen data to which the dialog classification information is added. Is output to the display composition unit 3752. The storage unit 36 may store notification screen data including dialog classification information in advance in the storage unit 36. In that case, the notification processing unit 374 reads the notification screen data corresponding to the dialog classification information acquired from the dialog detection unit 3733, and outputs the read notification screen data to the display composition unit 3752.

  The dialog button mentioned in the second sentence of the message Mg1 is the dialog button Dbt for adjusting the dialog volume provided in the remote controller Rc (FIG. 11). The dialog button Dbt is an operation button provided separately from the volume button Vbt for adjusting the common channel volume. In the example shown in FIG. 11, the characters “dialog” and “VOL” are attached in the vicinity of the dialog button Dbt and the volume button Vbt, respectively. When the dialog button Dbt is pressed by a user operation, the remote controller Rc transmits an operation signal indicating a relative level to the input / output unit 34 of the receiving device 30 wirelessly (for example, infrared rays). As described above, the volume control unit 3734 controls the dialog volume based on the relative level indicated by the operation signal from the input / output unit 34. In this embodiment, “pressing” means that a physical button is actually pressed, and that a button displayed on the screen or its display area is indicated by an operation signal.

The remote controller Rc further includes a voice switching button Asw and four color buttons Bbt, Rbt, Gbt, and Ybt. The audio switching button Asw is a button for instructing to switch the audio to be reproduced (audio to be reproduced) when pressed. The voice switching button Asw functions when there are a plurality of playback target voices. In the present embodiment, for example, audio data of dialog sound and normal broadcast audio data are transmitted in parallel, and audio data of a plurality of dialog sounds are transmitted in parallel. Each time the voice switching button Asw is pressed, the voice processing unit 373 cyclically selects a voice obtained by superimposing any one of a plurality of transmission voices or a combination thereof as a playback target voice.
The color buttons Bbt, Rbt, Gbt, and Ybt are plain buttons colored in blue, red, green, and yellow. Characters representing colors surrounded by a circle, for example, “blue” are characters indicating that the color is colored, and these characters are not actually represented. In the present embodiment, the color buttons Bbt, Rbt, Gbt, and Ybt are used for instructing functions to be described later. In the following description, the color buttons Bbt, Rbt, Gbt, and Ybt are referred to as a blue button Bbt, a red button Rbt, a green button Gbt, and a yellow button Ybt, respectively.

Next, another example of the notification screen will be described.
FIG. 12 is a diagram illustrating another example of the notification screen according to the present embodiment. In the example illustrated in FIG. 12, the notification screen is displayed in an area within a predetermined range from the lower left corner of the display area of the display unit 35. By being displayed in this area, visual recognition by the user is not hindered. The message Mg2 included in the notification screen includes a message “Dialog-compatible broadcast”, a circle surrounded by characters of “yellow”, and a message “detail” adjacent to the circle. The message “Dialog-compatible broadcast” is a message indicating that dialog sound is provided in the broadcast program. Therefore, the message “detail” adjacent to the circle indicates that more detailed information regarding the provided dialog sound is displayed when the yellow button Ybt is pressed. When the yellow button Ybt is pressed by a user operation, the remote controller Rc transmits an operation signal indicating display of detailed information to the input / output unit 34 of the receiving device 30. In response to the input of the operation signal from the input / output unit 34, the notification processing unit 374 outputs detailed information regarding the dialog sound to the display synthesis unit 3752, thereby causing the display unit 35 to display the detailed information.

  The detailed information may be either information stored in advance in the storage unit 36 or information extracted from the auxiliary information by the dialog detection unit 3733. The information stored in advance is, for example, instruction manual data (electronic manual) indicating how to handle the receiving device 30. Thereby, since the user is guided to the instruction manual data, the user can easily access more detailed information about the handling of the receiving device 30. The information extracted from the auxiliary information is, for example, dialog commentary information indicating commentary on the dialog sound. In the auxiliary information, the dialog commentary information is stored in an item of main dialog comment data (dialogue_main_lang_comment_data) of the auxiliary information. As a result, more detailed explanations about dialog sounds produced by program producers and broadcasters are transmitted. The dialog commentary information may include a description according to the configuration of the broadcast program and the position of the dialog sound. For example, in a sports program, when commentary sounds from multiple commentators are included as dialog sounds, the biography of each commentator, the main commentary player, the team commentary, and the competition based on each player and team position And an explanation of the dialog voice switching method and the like.

Next, still another example of the notification screen will be described.
FIG. 13 is a diagram showing still another example of the notification screen according to the present embodiment. In the example illustrated in FIG. 13, the notification screen is displayed in an area within a predetermined range from the lower side of the display area of the display unit 35. The message “This broadcast has a French voice dialog” in the first sentence of the message Mg3 included in the notification screen indicates that a dialog voice in which the provided language is French is provided. The provided language is the language indicated by the dialog language information from the dialog detection unit 3733 in the notification processing unit 374.

The message “Please press the voice switch button when switching to French” in the second sentence of the message Mg3 indicates that the provided dialog voice is the voice to be played when the voice switch button Asw of the remote controller Rc is pressed. Indicates that it will be selected.
When the voice switching button Asw is pressed by a user operation, the remote controller Rc transmits an operation signal indicating switching of the playback target voice to the input / output unit 34 of the receiving device 30. The volume control unit 3734 starts outputting the audio signal related to the dialog sound in response to the input of the operation signal from the input / output unit 34. At this time, the volume control unit 3734 may stop (mute) the output of the audio signal based on the other audio data.

  In the message Mg3, the third sentence says “You can adjust the volume of the dialog by pressing the blue and red buttons” and “Dialog volume UP” adjacent to the circle surrounded by the letters “red”. The message “Dialog volume DOWN” adjacent to the circle surrounded by the letters “blue” is included. These messages indicate that the dialog volume is adjusted to give a higher relative level by pressing the red button Rbt, and the dialog volume is adjusted to give a lower relative level by pressing the blue button Bbt. .

  When the red button Rbt is pressed by a user operation, the remote controller Rc sends an operation signal indicating an operation signal indicating a relative level higher than the instructed relative level to the input / output unit 34 of the receiving device 30. Send. When the blue button Bbt is pressed, the remote controller Rc transmits an operation signal indicating an operation signal indicating a relative level lower than the instructed relative level to the input / output unit 34 of the receiving device 30. The volume control unit 3734 controls the dialog volume based on the relative level indicated by the operation signal input from the input / output unit 34.

  The form and content of the notification information are not limited to the notification screen represented as a pop-up window exemplified in FIGS. The notification information may be expressed in text or may be expressed in addition to other information. In the example illustrated in FIG. 14, the message Mg4 is displayed in an area within a predetermined range from the upper right end of the display area of the display unit 35. Of the message Mg4, “ZYX”, “BS5”, and “5.1ch surround” indicate the broadcaster name, channel name, and audio playback method, respectively, and are all elements of program information. “(With dialog explanation)” corresponds to notification information indicating the presence of dialog sound provided in the program. Therefore, the notification processing unit 374 extracts program information included in the configuration information from the separation unit 372. The notification processing unit 374 reads predetermined notification information stored in advance from the storage unit 36, and generates message data indicating text obtained by integrating the text indicating the read notification information and the text indicating the configuration information. The notification processing unit 374 causes the display unit 35 to display the text by outputting the generated message data to the display synthesis unit 3752.

  The notification information may not include text, and may be an image such as an icon having a predetermined design or a predetermined symbol (logo). Further, the notification processing unit 374 may display these symbols and patterns so as to be superimposed on the display area of the corresponding broadcast program in the electronic program guide (EPG) generated based on the program information.

  The notification information may be notified by using a member other than the display unit 35 as the notification unit 38. For example, as illustrated in FIG. 15, the notification information may be presented by lighting or blinking the light emitting unit Le arranged on the surface of the outer frame portion of the display unit 35. In that case, the notification processing unit 374 outputs, as notification information, information instructing power supply to a switching unit (switch) that switches presence / absence of power supply to the light emitting unit Le. The switching unit supplies power to the light emitting unit Le according to the input of the notification information. Further, the notification information may be presented by reproducing sound from a speaker constituting the loudspeaker 33. In this case, the notification processing unit 374 outputs a predetermined audio signal as notification information to the loudspeaker unit 33, thereby reproducing the sound indicated by the audio signal. The sound to be reproduced may be a predetermined sound effect, or may be an utterance voice or a synthetic voice indicating the contents of various messages, for example, a voice indicating the content of guidance information, commentary information, dialog classification information, or the like. As the sound to be played back, for example, a sound representing the content “This is a dialog-compatible broadcast! The intensity of the commentary sound can be adjusted with the dialog button!” May be used.

  The notification information may be notified from another device via the input / output unit 34. That is, the input / output unit 34 and other devices are used as the notification unit 38. As another device, an electronic device having a display unit, for example, a remote controller, a mobile phone, or the like may be used (second screen). For example, the display synthesis unit 3752 outputs the notification information to another device via the input / output unit 34, thereby causing the display unit included in the device to display the notification information.

  FIG. 16 is a diagram illustrating a display example of the notification information according to the present embodiment on another device. In the example shown in FIG. 16, the other device is a mobile phone UE. The mobile phone UE includes a display unit Ds on one surface thereof. In the display area of the display unit Ds, the message Mg4 is displayed within a predetermined range from the upper side. This message Mg4 includes the same contents as the message Mg4 shown in FIG. Therefore, the notification information is presented from a device desired by the user, which is separate from the display unit 35 of the receiving device 30, so that viewing of video and audio provided in the broadcast program can be prevented. Note that the notification processing unit 374 may display the above-described notification screen and detailed information on other devices including a display unit.

  Note that the member or device that is the output destination of the notification information may be specified by the output destination information set in the control unit 37 in advance, or various types of information received from the transmission device 10, such as auxiliary information and configuration information. It may be specified by a descriptor included in.

As described above, the receiving device 30 according to the present embodiment includes the dialog detection unit 3733 that detects the audio data of the dialog audio from the received audio data based on the auxiliary information regarding the audio of the broadcast program. In addition, the receiving device 30 includes a volume control unit 3734 that controls the dialog volume and the other channel volume, and a notification processing unit 374 that outputs notification information about the dialog sound detected by the dialog detection unit 3733.
With this configuration, the notification information related to the dialog sound detected from the sound of the broadcast program provided during the broadcast is presented, so the user can recognize the presence of the detected dialog sound. Therefore, use of the provided dialog sound can be promoted to the user.

The auxiliary information includes attribute information indicating the attribute of the dialog sound, and the notification processing unit 374 outputs notification information corresponding to the attribute information.
With this configuration, the notification information corresponding to the attribute information of the dialog sound is presented, so that the user can determine whether to use the dialog sound or whether to use the dialog sound according to the attribute indicated by the detected attribute information of the dialog sound. Can be promoted.

The notification information includes guidance information related to the volume adjustment of the dialog dedicated channel.
As a result, the dialog volume can be adjusted and the user is notified of the adjustment method. Therefore, the adjustment for listening to the dialog sound at a desired volume can be promoted to the user.

The notification information includes commentary information related to the dialog sound.
As a result, the user can know, for example, the intention of provision by the program producer or the broadcaster, the outline of the dialog sound, the background, the position in the program, and the like as commentary information regarding the dialog sound. Therefore, the user's interest can be deepened with respect to the dialog sound and the entire broadcast program provided with the dialog sound.

  In addition, after outputting the notification information indicating the presence of the dialog sound, the notification processing unit outputs guidance information related to the volume adjustment of the dialog dedicated channel or comment information related to the dialog sound in accordance with the operation input. With this configuration, the display area of the notification information to be presented is reduced, and obstruction of viewing of the broadcast program due to the presentation is avoided, and more detailed guidance information or commentary information is provided according to the user's judgment. Therefore, the use of dialog voice can be further promoted to the user.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. About the same structure as 1st Embodiment, the same code | symbol is attached | subjected and the description is used. Hereinafter, differences from the first embodiment will be mainly described.
In the first embodiment, the broadcast system 1 in which the transmission device 10 (FIG. 1) transmits program data via the broadcast transmission path 11 is taken as an example. In this embodiment, the case where the broadcast system 1 is comprised as a broadcast communication cooperation system is made into an example.

FIG. 17 is a schematic block diagram of the broadcast system 1 according to the present embodiment.
The broadcast system 1 according to the present embodiment further includes a communication device 20.
When receiving a request signal from the receiving device 30, the communication device 20 transmits an application program (hereinafter referred to as an application) to the receiving device 30 as a response. This application is described in a predetermined description language (for example, HTML5), and includes data of some contents constituting a broadcast program. The data may include audio data. This application may include notification information or a command for causing the notification unit 38 to notify the notification information. The communication device 20 is, for example, a broadcaster or content provider server device.

  The communication transmission path 21 is a transmission path for bidirectionally transmitting various data between the communication apparatus 20 and the reception apparatus 30. The communication transmission path 21 includes, for example, a wide area communication network such as the Internet or a public wireless communication network. The communication transmission line 21 may partially include a local area network (LAN) or a dedicated access network. Note that transmitting (or transmitting or receiving) various data via the communication transmission path 21 may be referred to as “transmitting (or transmitting or receiving) by communication”.

  The transmission device 10 according to the present embodiment further acquires control information. The control information includes URL (Uniform Resource Locator) of the communication device 20 and information for controlling execution such as starting and stopping of the application as acquisition destination information of the application. The control information is represented as data having a predetermined format, for example, an application information table (AIT) and is included in the configuration information described above. Therefore, the transmission device 10 transmits the multiplexed data including the configuration information to the reception device 30 via the broadcast transmission path 11.

Next, the configuration of the receiving device 30 according to this embodiment will be described.
FIG. 18 is a schematic block diagram illustrating a configuration of the receiving device 30 according to the present embodiment.
The receiving apparatus 30 according to the present embodiment further includes a communication unit 32 and an application processing unit 376. The application processing unit 376 includes an application control unit 3761 and an application execution unit 3762.

The separation unit 372 further separates the control information from the configuration information separated from the multiplexed data, and outputs the separated control information to the application control unit 3761.
The application control unit 3761 acquires control information from the separation unit 372, acquires an application based on the acquired control information, and controls processing instructed by a command described in the acquired application. In the following description, performing a process designated by an instruction described in an application is referred to as “execution of the application”.
The application control unit 3761 generates a request signal for instructing the communication device 20 indicated by the acquisition destination information of the application indicated by the control information to acquire the application. The application control unit 3761 transmits the generated request signal to the communication device 20 via the communication unit 32. The application control unit 3761 receives an application from the communication device 20 via the communication unit 32 as a response. Application control unit 3761 outputs the received application to application execution unit 3762. The application control unit 3761 causes the application execution unit 3762 to start executing the application based on the control information, and stops the execution.

  The application execution unit 3762 executes the application input from the application control unit 3761 according to control by the application control unit 3761. For example, the application execution unit 3762 extracts program data indicating a part of content constituting a broadcast program included in the application. Further, the application execution unit 3762 may acquire program data from the acquisition destination designated by the application via the communication transmission path 21. The application execution unit 3762 outputs the acquired program data to the separation unit 372. The separation unit 372 separates audio data and video data from the program data input from the application execution unit 3762, outputs the separated audio data to the audio processing unit 373, and outputs the separated video data to the video processing unit 375. . Therefore, the content designated by the execution of the application is presented. The application execution unit 3762 causes other functional units to execute the presentation of the content indicated by the program data and the processing related to the presentation based on the command described in the application. For example, the application execution unit 3762 causes the notification processing unit 374 to perform processing for outputting the notification information related to the dialog sound directly or indirectly to the notification unit 38 as the execution of the application. Further, the notification processing unit 374 may use notification information included in the application as part or all of the notification information to be output, or notification information designated (linked) by the application.

As described above, according to the present embodiment, the receiving device 30 converts the audio data of the dialog audio from the audio data acquired by executing the application acquired from the communication device 20 based on the auxiliary information related to the audio of the broadcast program. To detect.
Even with this configuration, the notification information about the dialog sound detected from the sound acquired by executing the application provided during broadcasting is presented, so the user can recognize the presence of the detected dialog sound and provide The user can be encouraged to use the dialog voice.
Further, the auxiliary information is added to the audio data in a stream in which the audio data is transmitted. For this reason, the reception device 30 can also perform the functions of the dialog detection unit 3733, the volume control unit 3734, and the notification processing unit 374 that are common to the audio data acquired by broadcasting, for the audio data acquired in the present embodiment. it can.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope indicated in the claims, and the technical configurations disclosed in different embodiments are appropriately combined. The obtained embodiment is also included in the technical scope of the present invention.
Each component of the present invention can be arbitrarily selected, and an invention having a selected configuration is also included in the present invention.

  For example, in the auxiliary information indicating the presence of a plurality of dialog sounds, either or both of the dialog classification information and the dialog classification default gain information may be specified for all the dialog sounds, or for each dialog sound. May be specified. For all dialog voices for which the dialog classification default gain information is specified at once, the volume control unit 3734 determines a default dialog volume based on the dialog classification default gain information. For all dialog voices for which the dialog classification information is collectively specified, the notification processing unit 374 generates and outputs notification information based on the dialog classification information. On the other hand, the volume control unit 3734 determines a default dialog volume for each of the designation target dialog sounds based on the individually designated dialog default gain information. In addition, the notification processing unit 374 generates and outputs notification information for each specified dialog voice based on the dialog classification information.

In the embodiment described above, the case where the audio mode is mainly 5.1ch surround has been described as an example, but other audio modes related to multi-channel audio may be used. The audio mode may be 22.2 ch surround, for example. In addition, the above-described embodiment includes means for downmixing 5.1 channel, 22.2 channel, etc. multi-channel surround sound to a smaller channel sound mode (for example, 2.0ch stereo, 2.1ch stereo). It may be realized as a reproduction system. Also for such a playback system, it is possible to make the user recognize the existence of a dialog voice whose volume can be adjusted independently, and to promote the use thereof.
If various data can be transmitted to and received from the receiving device 30, any of the loudspeaker 33, the input unit 34, and the display unit 35 or a combination thereof is omitted from the main body of the receiving device 30, and is separately provided. It may be configured.

  In the above-described embodiment, an example in which a method defined in the MPEG-2 system is used when transmitting various data is described. However, other multiplexing / transmission methods may be used. For example, a media transport system based on MMT (MPEG Media Transport) defined by MPEG-H may be used. Also, the data format, encryption method, and encoding method that can be used in the transmission method may be used as the data format, encryption method, and encoding method related to transmission.

  Moreover, you may make it implement | achieve a part of receiver 30 in embodiment mentioned above with a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed. Here, the “computer system” is a computer system built in the recognition data transmission apparatus, and includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In this case, a volatile memory inside a computer system that serves as a server or a client may be included that holds a program for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

In addition, this invention can be implemented also in the following aspect.
(1) A dialog detection unit for detecting audio data of dialog audio to be reproduced on a predetermined channel from received audio data based on auxiliary information related to audio of a broadcast program, and dedicated to a dialog for reproducing the dialog audio among a plurality of channels A receiving apparatus comprising: a volume control unit that controls a volume of a channel and a volume of another channel; and a notification processing unit that outputs notification information related to the dialog sound detected by the dialog detection unit.

(2) The receiving apparatus according to (1), wherein the auxiliary information includes attribute information indicating an attribute of the dialog voice, and the notification processing unit outputs notification information corresponding to the attribute information.

(3) The receiving apparatus according to (1) or (2), wherein the notification information includes guidance information related to volume adjustment of the dialog dedicated channel.

(4) The receiving device according to any one of (1) to (3), wherein the notification information includes commentary information related to the dialog voice.

(5) After outputting the notification information indicating the presence of the dialog sound, the notification processing unit outputs guidance information related to the volume adjustment of the dialog dedicated channel or commentary information related to the dialog sound according to an operation input (4 ) Receiver.

(6) A reception method of a receiving apparatus, wherein a dialog detection process for detecting audio data of dialog audio to be reproduced on a predetermined channel from received audio data based on auxiliary information related to audio of a broadcast program, and a plurality of channels Of these, a volume control process for controlling the volume of the dialog dedicated channel for reproducing the dialog sound, the volume of the other channels, and a notification processing process for outputting notification information regarding the dialog sound detected in the dialog detection process. Having a receiving method.

(7) A dialog detection procedure for detecting audio data of dialog audio to be reproduced on a predetermined channel from received audio data by the computer of the receiving device based on auxiliary information related to reproduction of a broadcast program, the dialog audio of a plurality of channels A program for executing a volume control procedure for controlling the volume of a dialog dedicated channel for reproducing the volume, the volume of other channels, and a notification processing procedure for outputting notification information relating to the dialog sound detected in the dialog detection procedure.

  DESCRIPTION OF SYMBOLS 1 ... Broadcasting system, 10 ... Transmission apparatus, 11 ... Broadcast transmission path, 12 ... Broadcasting satellite, 20 ... Communication apparatus, 21 ... Communication transmission path, 30 ... Reception apparatus, 31 ... Broadcast receiving part, 32 ... Communication part, 33 ... Loudspeaker, 34 ... Input / output unit, 35 ... Display unit, 36 ... Storage unit, 37 ... Control unit, 371 ... Demodulation unit, 372 ... Separation unit, 373 ... Audio processing unit, 3731 ... Audio decoding unit, 3732 ... Additional information Analysis unit, 3733 ... Dialog detection unit, 3734 ... Volume control unit, 374 ... Notification processing unit, 375 ... Video processing unit, 3751 ... Video decoding unit, 3752 ... Display composition unit, 376 ... Application processing unit, 3761 ... Application control unit 3762 ... Application execution unit 38 ... Notification unit

Claims (7)

A dialog detector for detecting audio data of dialog audio to be played back on a predetermined channel from received audio data based on auxiliary information related to audio of the broadcast program;
A volume control unit for controlling the volume of a dialog dedicated channel for playing the dialog sound among a plurality of channels, and the volume of other channels;
A notification processing unit that outputs notification information related to the dialog sound detected by the dialog detection unit;
A receiving device. The auxiliary information includes attribute information indicating attributes of the dialog sound,
The receiving device according to claim 1, wherein the notification processing unit outputs notification information corresponding to the attribute information.   The receiving apparatus according to claim 1, wherein the notification information includes guidance information regarding adjustment of a volume of the dialog dedicated channel.   The receiving apparatus according to any one of claims 1 to 3, wherein the notification information includes commentary information related to the dialog sound.   4. The notification processing unit according to claim 3 or claim, wherein after the notification information indicating the presence of the dialog voice is output, guidance information relating to volume adjustment of the dialog dedicated channel or commentary information relating to the dialog voice is output according to an operation input. Item 5. The receiving device according to Item 4. A receiving method of a receiving device,
A dialog detection process for detecting audio data of dialog audio to be reproduced on a predetermined channel from received audio data based on auxiliary information related to audio of a broadcast program;
A volume control process for controlling the volume of a dialog dedicated channel for playing the dialog sound among a plurality of channels and the volume of other channels;
A notification processing step for outputting notification information about the dialog voice detected in the dialog detection step;
Receiving method. In the computer of the receiving device,
Dialog detection procedure for detecting audio data of dialog audio to be played back on a predetermined channel from received audio data based on auxiliary information related to broadcast program playback,
Volume control procedure for controlling the volume of the dialog dedicated channel for playing the dialog sound among a plurality of channels and the volume of the other channels,
A notification processing procedure for outputting notification information relating to the dialog sound detected in the dialog detection procedure;
A program for running

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