JP6440314B2 - Receiving apparatus, receiving method, and program - Google Patents

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. A plurality of audio contents may be provided as dialog audio in a program. The user can select any one of a plurality of audio contents and switch arbitrarily.

  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, the ease of hearing of the dialog voice may differ depending on factors related to viewing such as the type of program and the surrounding environment, as well as the relationship with the volume of other voices. For this reason, the user may not have a clear target volume for listening to the dialog voice. On the other hand, it is troublesome for the user to adjust the volume of the dialog voice each time. Further, when a plurality of audio contents are provided as dialog audio, the user may not be clear which audio content should be selected.

  SUMMARY An advantage of some aspects of the invention is that it provides a receiving device, a receiving method, and a program capable of improving the convenience of dialog voice.

One aspect of the present invention is a dialog detector that detects audio data indicating dialog audio to be played back on a predetermined channel from audio data received based on auxiliary information related to audio of a broadcast program, and the dialog audio of a plurality of channels. A volume control unit for controlling the volume of the dedicated channel for the dialog, the volume of the other channel, and a volume setting unit for determining the volume of the dedicated channel based on the related information related to viewing of the broadcast program. The auxiliary information includes, as the related information, volume information indicating a relative volume of the dialog-dedicated channel according to the classification of the dialog sound, and the volume setting unit determines the volume of the dialog-dedicated channel based on the volume information. It is a receiving apparatus which determines .

  According to one embodiment of the present invention, the convenience of dialog voice can be improved.

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 the auxiliary information which concerns on 1st Embodiment. 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 flowchart which shows the reception process which concerns on 2nd Embodiment. It is a flowchart which shows the reception process which concerns on 3rd Embodiment. It is a flowchart which shows the reception process which concerns on 4th Embodiment. It is a flowchart which shows the reception process which concerns on 5th Embodiment. It is a figure which shows the data structure of the auxiliary information which concerns on 6th Embodiment. It is a flowchart which shows the reception process which concerns on 6th Embodiment. It is a schematic block diagram of the broadcast system which concerns on 7th Embodiment. It is a schematic block diagram which shows the structure of the receiver which concerns on 7th 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 video data. The transmission device 10 multiplexes an audio data stream and a video data stream as elementary streams (ES), and generates a transport stream (TS) 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 dialog-dedicated channel that reproduces the dialog sound among the plurality of channels and the volume of the other channels. In addition, the receiving device 30 determines the volume of the dialog-dedicated channel based on related information regarding viewing of the broadcast program. Therefore, the volume of the dialog voice is set to a volume corresponding to the related information regardless of the user's operation. Even when the user cannot determine the target volume or when it can be determined but cannot be operated, the user's operation is not particularly required when setting the default dialog volume, so that the convenience of the dialog voice is improved. Volume information indicating the volume corresponding to the type of dialog sound included in the auxiliary information as related information, program information indicating the attribute of the broadcast program, user information indicating the attribute of the user, date information indicating the broadcast date and time of the broadcast program, audio Any of the environment information indicating the reproduction environment or a combination thereof can be used. The auxiliary information may include area information indicating an area where the dialog sound is provided. In that case, the receiving device 30 detects dialog voices in which the installation location of the device belongs to the region indicated by the region information. Therefore, the user can listen to the dialog sound corresponding to the area where the broadcast program is viewed.

(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 (Ment R), DSE (Dame (Tem) 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 according to the present embodiment. 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 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 unit 34 acquires an operation signal corresponding to a user operation input, and outputs the acquired operation signal to the control unit 37. The input 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. The input unit 34 may be configured to include an input interface or a communication interface that receives an operation signal transmitted wirelessly or by wire from another device and outputs the input operation signal to the control unit 37. 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 display unit 35 displays the video indicated by the video signal acquired from the control unit 37. The display unit 35 is, for example, 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.

  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 video processing unit 374. In addition, the voice processing unit 373 includes a voice decoding unit 3731, an additional information analysis unit 3732, a dialog detection unit 3733, a related information acquisition unit 3734, a dialog volume setting unit 3735, and a volume control unit 3736. Composed. 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 video 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 processing unit 374.

  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 3736.

  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 determines the presence / absence of a dialog voice based on the auxiliary information input from the additional information analysis unit 3732. Specifically, when the setting value set in the dialog presence information which is one item of the auxiliary information is “1”, the dialog detection unit 3733 determines that there is dialog sound, and the read setting value is “0”. ", It is determined that there is no dialog sound. 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.
When the dialog detection unit 3733 determines that there is dialog sound, the dialog detection unit 3733 outputs the input auxiliary information to the related information acquisition unit 3734.

  The related information acquisition unit 3734 acquires related information regarding viewing of a broadcast program. In the present embodiment, the related information acquisition unit 3734 acquires dialog classification default gain information from the auxiliary information input from the dialog detection unit 3733 as related information. The related information acquisition unit 3734 outputs the acquired related information to the dialog volume setting unit 3735.

  The dialog volume setting unit 3735 determines a default (initial) dialog volume for the dialog sound to be controlled based on the related information input from the related information acquisition unit 3734. In the present embodiment, the dialog volume setting unit 3735 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 as related information. When the read relative level is 0 dB or more, the dialog volume setting unit 3735 sets the dialog volume to a predetermined reference value (for example, 0 dB), and subtracts the relative level of the other channel volume from the predetermined reference value. Set to the value obtained. When the read relative level is less than 0 dB, the dialog volume setting unit 3735 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. The dialog volume setting unit 3735 outputs default volume information indicating the determined dialog volume and other channel volume to the volume control unit 3736.

  The volume control unit 3736 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 3736 sets the volume of the dialog dedicated channel and the volume of other channels to the dialog volume and other channel volume indicated by the default volume information input from the dialog volume setting unit 3735. Determine each. The volume control unit 3736 individually controls the volume of the dialog dedicated channel and the volume of other channels based on the operation signal input from the input unit 34. Specifically, the volume control unit 3736 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 with reference to FIG. Then, the volume control unit 3736 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 3736 reproduces the sound of each channel by outputting the sound signal of each channel whose volume is controlled to the loudspeaker unit 33.

  Note that the volume control unit 3736 controls the volume of all channels at the same time based on the common channel volume indicated by the operation signal regardless of the presence or absence of the dialog sound. If it is determined that there is no dialog sound, the volume control unit 3736 does not control the volume based on the relative level.

The video processing unit 374 extracts video data from the video data stream input from the separation unit 372. The video processing unit 374 decodes the extracted video data using a predetermined video decoding method (for example, MPEG-2 video), and generates video data. The decoded video data is data indicating signal values forming a video (frame image) at each time. The video processing unit 374 causes the display unit 35 to display the video indicated by the display data by outputting the decoded video data as display data to the display unit 35.
Note that the video processing unit 374 may generate display data indicating a composite video obtained by combining a video indicated by the decoded video data with a display screen indicated by various screen data. The video processing unit 374 outputs the generated display data to the display unit 35, thereby causing the display unit 35 to display a display screen superimposed on the video indicated by the display data. The display screen is, for example, a dialog notification screen for notifying the provision of the dialog sound, its type, the dialog volume adjustment method, and the like. When it is determined that there is dialog sound, the video processing unit 374 causes the display unit 35 to display a dialog notification screen.

(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 S105) The related information acquisition unit 3734 acquires dialog classification default gain information from auxiliary information as related information. Thereafter, the process proceeds to step S106.
(Step S106) The dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the dialog classification default gain information as the related information. Thereafter, the process proceeds to step S107.
(Step S107) The volume control unit 3736 determines the dialog volume setting unit 3735 as the default dialog volume and other channel volume. Thereafter, the volume control unit 3736 individually controls the volume of the dialog dedicated channel and the volume of the other channel 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.

As described above, the receiving apparatus 30 according to the present embodiment detects the dialog data that indicates the dialog data to be played back on a predetermined channel from the received audio data based on the auxiliary information related to the audio of the broadcast program. 3733 is provided. The receiving apparatus 30 includes a volume control unit 3736 that controls the volume of a dialog-dedicated channel that reproduces dialog sound among a plurality of channels and the volume of other channels. In addition, the receiving device 30 includes a dialog volume setting unit 3735 that determines the volume of the dialog-dedicated channel based on related information regarding viewing of a broadcast program.
With this configuration, the volume of the dialog voice is set to a volume corresponding to the related information regardless of the user's operation. Even if the user cannot determine the target volume, or can determine but cannot operate, the user's operation is not required in setting the default volume of the dialog sound, so the convenience of the dialog sound is improved.

The auxiliary information includes dialog classification default gain information as volume information indicating a relative level as relative volume of the dialog dedicated channel corresponding to the dialog voice classification as related information. Further, the dialog volume setting unit 3735 determines the volume of the dialog dedicated channel based on the relative level indicated by the dialog classification default gain information.
With this configuration, the relative volume of the default dialog sound relative to other sounds is controlled to the relative sound volume that the dialog sound provider, for example, the broadcaster or the program producer, intends based on the dialog sound classification. The Therefore, even when the user does not know the target value for the relative sound volume of the dialog sound, the dialog sound can be received with a sound volume suitable for the classification of the dialog sound in the broadcast program.

(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 case where the related information acquisition unit 3734 acquires the dialog classification default information as the related information is taken as an example. In the present embodiment, a case where the related information acquisition unit 3734 acquires program information indicating attributes of a broadcast program instead of the dialog classification default information as related information is taken as an example.

  The related information acquisition unit 3734 acquires program information of a predetermined item from the configuration information separated by the separation unit 372. The related information acquisition unit 3734 extracts, as a predetermined item, an item depending on the relative role of the dialog sound in the broadcast program, for example, any item or combination of the genre, title, and performer name of the broadcast program To do. Specifically, the genre is specified by a content descriptor described in the EIT descriptor area. The title and performer name are specified by a short format event descriptor or an extended format event descriptor described in the descriptor area of the EIT. The related information acquisition unit 3734 outputs the extracted program information to the dialog volume setting unit 3735.

  The dialog volume setting unit 3735 determines the dialog volume based on the program information input from the related information acquisition unit 3734. The storage unit 36 stores in advance a volume table indicating the correspondence between the program information for each item and the relative level. For example, a higher relative level (eg, +10 dB) is given for a genre where it is preferable to easily listen to the utterance content, and a lower relative level (eg, −10 dB) for a genre where the utterance content is relatively unimportant. ) Is given. For example, a relative level significantly higher than 0 dB is given for news, drama, and animation, and a relative level significantly lower than 0 dB is given for sports and music. For wide shows and movies in general, a relative level within a predetermined range (for example, −3 dB to +3 dB) is given from 0 dB.

More specifically, relative levels such as +10 dB for news, +10 dB for dramas, and −10 dB for movies (action movies) are set in the volume table related to genres. In the volume table related to the title, relative levels such as -10 dB for the song XX and +10 dB for the XX news are set. Further, relative levels such as +10 dB for the actor ▲▲ and +10 dB for the news caster □□ are set for the volume table related to the performer name. For programs with subtitles, a relative level (for example, +10 dB) higher than 0 dB may be given in the volume table regardless of the genre or the like in order to easily listen to the utterance content.
The dialog volume setting unit 3735 refers to the volume table and reads the relative level corresponding to the input program information. As in the first embodiment, the dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the read relative level.

  When program information of a plurality of items is input, the dialog volume setting unit 3735 may select one item based on a preset priority order. The priority order is, for example, the order of genre, title, performer, or the order of performer, title, genre. The dialog volume setting unit 3735 determines a relative level corresponding to the program information of the item having the highest priority set among the plurality of input items.

(Receiving method)
Next, the reception process according to the present embodiment will be described.
FIG. 10 is a flowchart showing a reception process according to the present embodiment.
The reception process illustrated in FIG. 10 includes steps S101 to S104, S105a, S106a, and S107. When it is determined in step S104 that there is a dialog sound (YES in step S104), the process proceeds to step S105a.

(Step S105a) The related information acquisition unit 3734 acquires program information of a predetermined item from the configuration information. Thereafter, the process proceeds to step S106a.
(Step S <b> 106 a) The dialog volume setting unit 3735 specifies a relative level corresponding to the program information acquired by referring to the volume table stored in advance in the storage unit 36. The dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the specified relative level. Thereafter, the process proceeds to step S107.

As described above, in the receiving device 30 according to the present embodiment, the dialog volume setting unit 3735 determines the volume of the dialog dedicated channel based on the program information indicating the attribute of the broadcast program as the related information.
With this configuration, the relative volume based on the other voices of the default dialog voice is controlled according to the attributes of the broadcast program. Therefore, even when the user does not know the target value for the relative sound volume of the dialog sound, the dialog sound can be received with a sound volume suitable for the attribute of the broadcast program.

(Third embodiment)
Next, a third embodiment of the present invention will be described. About the same structure as the above-mentioned embodiment, the same code | symbol is attached | subjected and the description is used. In the following, differences from the second embodiment will be mainly described.
In the second embodiment, an example has been described in which the related information acquisition unit 3734 acquires program information as related information. In this embodiment, a case where the related information acquisition unit 3734 further acquires user information as related information is taken as an example.

  The related information acquisition unit 3734 reads user information stored in advance in the storage unit 36. User information is information including items such as user attributes, such as hobbies, age, and sex. As user information, for example, information set in response to a user's operation input as a part of device settings can be used. The related information acquisition unit 3734 may acquire user information specified by an operation signal input from the input unit 34 in response to a user operation input. The related information acquisition unit 3734 outputs the acquired user information to the dialog volume setting unit 3735.

  The dialog volume setting unit 3735 determines the dialog volume based on the user information input from the related information acquisition unit 3734. The storage unit 36 stores in advance a favorite program information table in which user information and favorite program information are associated with each other. In the preference program information table, user information and program information indicating the attributes of programs that tend to be preferred by users having the user attributes indicated by the user information are given as preference program information. For example, when the hobby is English conversation, a program that provides English sound as a language is associated. If the gender is female, a fashion-related program is associated as a genre. When the age is 5 to 12, an animation program is associated.

  The dialog volume setting unit 3735 reads the favorite program information corresponding to the user attribute read with reference to the favorite program information table. The dialog volume setting unit 3735 specifies program information of an item in which the program information acquired from the configuration information matches the read favorite program information. Then, the dialog volume setting unit 3735 reads the relative level corresponding to the program information of the item specified with reference to the volume table. As in the first embodiment, the dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the read relative level.

(Receiving method)
Next, the reception process according to the present embodiment will be described.
FIG. 11 is a flowchart showing a reception process according to the present embodiment.
The reception process illustrated in FIG. 11 includes steps S101 to S104, S105b, S106b, and S107. When it is determined in step S104 that there is a dialog voice (step S104 YES), the process proceeds to step S105b.

(Step S105b) The related information acquisition unit 3734 acquires user information. Thereafter, the process proceeds to step S106b.
(Step S106b) The dialog volume setting unit 3735 determines the default dialog volume and other channel volume with reference to the program information and the user information. Here, the dialog volume setting unit 3735 refers to the preference information table stored in advance in the storage unit 36 and identifies the favorite program information corresponding to the user information. The dialog volume setting unit 3735 specifies program information of an item in which the program information acquired from the configuration information matches the specified favorite program information. The dialog volume setting unit 3735 specifies a relative level corresponding to the specified program information. The dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the specified relative level. Thereafter, the process proceeds to step S107.

As described above, in the receiving device 30 according to the present embodiment, the dialog volume setting unit 3735 includes the volume setting unit in the program information associated with user information indicating a user attribute as the related information. Based on this, the volume of the dialog dedicated channel is determined.
With this configuration, the relative volume based on the other voices of the default dialog voice is controlled according to the attribute corresponding to the user attribute as the program attribute. Therefore, the dialog sound can be received at a volume corresponding to the attribute of the broadcast program that tends to be viewed according to the user attribute.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. About the same structure as the above-mentioned 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 case where the related information acquisition unit 3734 acquires the dialog classification default information as the related information is taken as an example. In this embodiment, a case where the related information acquisition unit 3734 acquires date and time information as related information instead of the dialog classification default information is taken as an example.

  The related information acquisition unit 3734 acquires date and time information indicating the current time (current) time. The related information acquisition unit 3734 includes, for example, a timer that acquires the current time. The related information acquisition unit 3734 outputs the acquired date and time information to the dialog volume setting unit 3735.

The dialog volume setting unit 3735 determines the dialog volume based on the date / time information input from the related information acquisition unit 3734. The storage unit 36 stores in advance a time zone volume table indicating the correspondence between time zones and relative levels. For example, for a time zone in which it is preferable to listen to the utterance content easily while reducing the volume of all channels, a relative level higher than the relative level from other time zones is given. In the time zone volume table, for example, the relative level is given as +10 dB at night (20 o'clock to 4 o'clock) and early morning (4 o'clock to 7 o'clock), and the relative level is 0 dB for other time zones. And given.
The dialog volume setting unit 3735 refers to the volume table for each time zone, and specifies a relative level corresponding to the time zone to which the time indicated by the date / time information belongs. The dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the specified relative level, as in the first embodiment.

(Receiving method)
Next, the reception process according to the present embodiment will be described.
FIG. 12 is a flowchart showing a reception process according to the present embodiment.
The reception process illustrated in FIG. 12 includes steps S101 to S104, S105c, S106c, and S107. When it is determined in step S104 that there is a dialog voice (step S104 YES), the process proceeds to step S105c.

(Step S105c) The related information acquisition unit 3734 acquires date information. Thereafter, the process proceeds to step S106c.
(Step S106c) The dialog volume setting unit 3735 refers to the volume table for each time zone, and specifies a relative level corresponding to the time zone to which the time indicated by the date and time information belongs. The dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the specified relative level. Thereafter, the process proceeds to step S107.

As described above, in the receiving device 30 according to the present embodiment, the dialog volume setting unit 3735 determines the volume of the dialog dedicated channel based on the date / time information indicating the date / time when the broadcast program is presented as the related information.
With this configuration, the relative volume based on the other voices of the default dialog voice is controlled according to the date and time when the user views the broadcast program. Therefore, even when the user does not know the target value for the relative sound volume of the dialog sound, the dialog sound can be received with a sound volume suitable for the date and time.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described. About the same structure as the above-mentioned 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 case where the related information acquisition unit 3734 acquires the dialog classification default information as the related information is taken as an example. In this embodiment, a case where the related information acquisition unit 3734 acquires environment information instead of the dialog classification default information as related information is taken as an example.

  The related information acquisition unit 3734 acquires environment information indicating a sound reproduction environment around the receiving device 30. As the environment information, for example, the reverberation level and reverberation time of the room in which the receiving device 30 is installed are acquired. The related information acquisition unit 3734 causes the loudspeaker unit 33 to reproduce a predetermined test sound (for example, sweep sound), and acquires a reverberation level and a reverberation time by analyzing an audio signal recorded by a microphone (not shown). be able to. In addition, the related information acquisition unit 3734 may acquire a reverberation level and a reverberation time specified by an operation signal input from the input unit 34 in response to a user operation input. Further, the related information acquisition unit 3734 may acquire the noise level as environmental information instead of or together with the reverberation level and the reverberation time. The related information acquisition unit 3734 outputs the acquired reverberation information to the dialog volume setting unit 3735.

The dialog volume setting unit 3735 determines the dialog volume based on the environment information input from the related information acquisition unit 3734. The storage unit 36 stores in advance an environmental volume table indicating the correspondence between the environmental information and the relative level. In the environment volume table, a higher relative level is given to an environment in which grasping of the utterance content is strongly hindered. For example, a higher reverberation level gives a higher relative level, and a longer reverberation time gives a higher relative level. Also, the higher the noise level, the higher the relative level is given.
The dialog volume setting unit 3735 refers to the environment volume table and identifies the relative level corresponding to the environment information. The dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the specified relative level, as in the first embodiment.

(Receiving method)
Next, the reception process according to the present embodiment will be described.
FIG. 13 is a flowchart showing the reception process according to the present embodiment.
The reception process illustrated in FIG. 13 includes steps S101 to S104, S105d, S106d, and S107. When it is determined in step S104 that there is a dialog sound (YES in step S104), the process proceeds to step S105d.

(Step S105d) The related information acquisition unit 3734 acquires environment information. Thereafter, the process proceeds to step S106d.
(Step S106d) The dialog volume setting unit 3735 refers to the environment volume table and identifies the relative level corresponding to the acquired environment information. The dialog volume setting unit 3735 determines the default dialog volume and other channel volume based on the specified relative level. Thereafter, the process proceeds to step S107.

As described above, in the receiving apparatus 30 according to the present embodiment, the dialog volume setting unit 3735 determines the volume of the dialog dedicated channel based on the environment information indicating the audio reproduction environment as the related information.
With this configuration, the relative volume based on the other voices of the default dialog voice is controlled according to the voice reproduction environment. Therefore, even when the user does not know the target value for the relative volume of the dialog sound, the dialog sound can be received with an appropriate volume corresponding to the sound reproduction environment.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described. About the same structure as the above-mentioned embodiment, the same code | symbol is attached | subjected and the description is used. Hereinafter, differences from the first embodiment will be mainly described.

The dialog detector 3733 may detect the presence of a plurality of dialog sounds based on the auxiliary information input from the additional information analyzer 3732. In that case, the dialog detection unit 3733 extracts regional information set for each dialog sound from the auxiliary information. On the other hand, the dialog detection unit 3733 acquires installation area information to which the position where the receiving device 30 is installed belongs. As the installation area information, for example, information set in response to a user's operation input as a part of device settings stored in advance in the storage unit 36, for example, a zip code or an address can be used. Note that the dialog detection unit 3733 may acquire installation position information specified by an operation signal input from the input unit 34 in response to a user operation input.
The dialog detection unit 3733 selects a dialog sound in which area information indicating an area to which the installation position indicated by the installation position information belongs is set from among a plurality of dialog sounds.
Then, the related information acquisition unit 3734, the dialog volume setting unit 3735, and the volume control unit 3736 perform the above-described process on the dialog sound selected by the dialog detection unit 3733, and do not perform the above-described process on the unselected dialog sound. .

  As described above, the auxiliary information includes, for a plurality of dialog sounds, area information indicating areas where each dialog sound is provided. In the example illustrated in FIG. 14, a region code (dialogue_area_code) and a zip code (dialogue_postal_code) may be included as region information for each dialog voice. The dialog detection unit 3733 reads the area code or zip code set for each dialog. In the dialog detection unit 3733, priority information indicating which of the area code and the postal code is to be prioritized may be set in advance. For the dialog sound in which both the area code and the zip code are set, the dialog detection unit 3733 may select either the area code or the zip code as the area information based on the priority information.

(Receiving method)
Next, the reception process according to the present embodiment will be described.
FIG. 15 is a flowchart showing a reception process according to the present embodiment.
The reception process illustrated in FIG. 15 includes steps S101 to S103, S104e, and S105 to S107. After the process of step S103 is complete | finished, it progresses to step S104e.

(Step S104e) When detecting a plurality of dialog sounds based on the auxiliary information, the dialog detection unit 3733 extracts the area information set for each of the plurality of dialog sounds. The dialog detection unit 3733 acquires installation position information indicating the installation position of the receiving device 30. Then, the dialog detection unit 3733 selects the dialog sound in which the area information indicating the area to which the installation position indicated by the installation position information belongs is set among the plurality of dialog sounds. If there is a selected dialog voice, that is, a dialog voice related to the area to which the installation position of the receiving device 30 belongs (YES in step S104e), the process proceeds to step S105. The control part 37 performs the process of step S105-S107 for every dialog sound | voice. If there is no selected dialog voice (step S104e NO), the process shown in FIG. 15 is terminated.

As described above, in the present embodiment, the auxiliary information includes area information indicating an area where the dialog sound is provided. In addition, the dialog detection unit 3733 detects the audio data in which the installation location of the receiving device 30 belongs to the area indicated by the area information.
With this configuration, the dialog sound can be received by the receiving device 30 installed at the installation location belonging to the area specified by the area information. Therefore, the dialog sound is provided to a dialog sound provider, for example, a user in a region intended by a broadcaster or a program producer. Further, when a plurality of dialog sounds are provided, the dialog information can be provided to different regions by the provider setting regional information indicating different regions for each dialog sound.

(Seventh embodiment)
In the embodiment described above, 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. 16 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 contain 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. 17 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 375. The application processing unit 375 includes an application control unit 3751 and an application execution unit 3752.

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 3751.
The application control unit 3751 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 3751 generates a request signal for instructing the communication apparatus 20 indicated by the acquisition destination information of the application indicated by the control information to acquire the application. The application control unit 3751 transmits the generated request signal to the communication device 20 via the communication unit 32. The application control unit 3751 receives an application from the communication device 20 via the communication unit 32 as a response. The application control unit 3751 outputs the received application to the application execution unit 3752. The application control unit 3751 causes the application execution unit 3752 to start executing the application based on the control information, and stops the execution.

  The application execution unit 3752 executes the application input from the application control unit 3751 according to control by the application control unit 3751. For example, the application execution unit 3752 extracts program data indicating a part of content constituting a broadcast program included in the application. Further, the application execution unit 3752 may acquire program data via the communication transmission path 21 from an acquisition destination designated by the application. The application execution unit 3752 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 3752, outputs the separated audio data to the audio processing unit 373, and outputs the separated video data to the video processing unit 374. . Therefore, the content designated by the execution of the application is presented.

As described above, the receiving apparatus 30 according to the present embodiment also sets the volume of the dialog voice to the volume corresponding to the related information regardless of the user operation. Even if the user cannot determine the target volume, or can determine but cannot operate, the user's operation is not required in setting the default volume of the dialog sound, so the convenience of the dialog sound is improved.
Further, the auxiliary information is added to the audio data in a stream in which the audio data is transmitted. Therefore, for the audio data acquired in the present embodiment, the receiving device 30 also includes a dialog detection unit 3733, a related information acquisition unit 3734, a dialog volume setting unit 3735, and a volume control unit 3736 that are common to the audio data acquired by broadcasting. The function of can be demonstrated.

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, the receiving device 30 according to the second to sixth embodiments may include the application processing unit 375 according to the seventh embodiment. Further, the process performed by the dialog detection unit 3733 according to the second to fifth and seventh embodiments may include the process performed by the dialog detection unit 3733 according to the sixth embodiment.

  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 at once, or for each dialog sound. May be specified. For all the dialog sounds for which the dialog classification default gain information is collectively specified, the dialog volume setting unit 3735 determines a default dialog volume based on the dialog classification default gain information. The dialog volume setting unit 3735 determines the default dialog volume for each of the dialog voices to be specified based on the dialog default gain information specified individually for all the dialog voices for which the dialog classification information is collectively specified.

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.
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 detector for detecting audio data indicating dialog audio to be reproduced on a predetermined channel from audio data received based on auxiliary information relating to audio of the broadcast program, and a dialog for reproducing the dialog audio among a plurality of channels A receiving apparatus comprising: a volume control unit that controls the volume of a dedicated channel; the volume of another channel; and a volume setting unit that determines a volume of the dedicated channel for the dialog based on related information related to viewing of the broadcast program.

(2) The auxiliary information includes, as the related information, volume information indicating a relative volume of the dialog dedicated channel according to the dialog sound classification, and the volume setting unit is configured to output the dialog dedicated channel based on the volume information. (1) The receiving apparatus which determines the volume of sound.

(3) The receiving device according to (1), wherein the volume setting unit determines a volume of the dialog dedicated channel based on a relative volume of the dialog dedicated channel according to program information indicating the broadcast program attribute as the related information.

(4) The receiving device according to (3), wherein the volume setting unit determines a volume of the dialog dedicated channel based on the program information associated with user information indicating a user attribute as the related information.

(5) The receiving apparatus according to any one of (1) to (4), wherein the volume setting unit determines a volume of the dialog dedicated channel based on date and time information indicating a date and time when the broadcast program is presented as the related information.

(6) The receiving apparatus according to any one of (1) to (5), wherein the volume setting unit determines a volume of the dialog dedicated channel based on environment information indicating a sound reproduction environment as the related information.

(7) The auxiliary information includes area information indicating an area where the dialog voice is provided,
The dialog detecting unit is the receiving apparatus according to any one of (1) to (6), wherein the voice data belonging to an area indicated by the area information is detected by an installation location of the receiving apparatus.

(8) A reception method in the receiving apparatus, a dialog detection process for detecting audio data indicating dialog audio to be reproduced on a predetermined channel from audio data received based on auxiliary information related to audio of a broadcast program, and a plurality of channels Among 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 volume setting for determining the volume of the dialog-dedicated channel based on related information regarding viewing of the broadcast program And a receiving method.

(9) Dialog detection procedure for detecting audio data indicating dialog audio to be reproduced on a predetermined channel from audio data received based on auxiliary information related to audio of a broadcast program by a computer of the receiving apparatus, the dialog among a plurality of channels A volume control procedure for controlling the volume of the dialog dedicated channel for playing audio, the volume of the other channels, and a volume setting procedure for determining the volume of the dialog dedicated channel based on related information related to viewing of the broadcast program are executed. Program for.

  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, 35 ... Display, 36 ... Storage, 37 ... Control, 371 ... Demodulator, 372 ... Separator, 373 ... Audio processor, 3731 ... Audio decoder, 3732 ... Additional information analysis Part 3733 ... dialog detection part 3734 ... related information acquisition part 3735 ... dialog volume setting part 3737 ... volume control part 374 ... video processing part 375 ... application processing part 3751 ... application control part 3752 ... application execution Part

Claims (8)

A dialog detection unit for detecting audio data indicating dialog audio to be reproduced in a predetermined channel from audio data received based on auxiliary information related to audio of a 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 volume setting unit that determines the volume of the dialog-dedicated channel based on related information regarding viewing of the broadcast program;
Equipped with a,
The auxiliary information includes, as the related information, volume information indicating a relative volume of the dialog-dedicated channel according to the dialog sound classification,
The volume setting unit is a receiver that determines the volume of the dialog-dedicated channel based on the volume information . A dialog detection unit for detecting audio data indicating dialog audio to be reproduced in a predetermined channel from audio data received based on auxiliary information related to audio of a 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 volume setting unit that determines the volume of the dialog-dedicated channel based on related information regarding viewing of the broadcast program;
Equipped with a,
The volume setting unit is a receiver that determines the volume of the dialog-dedicated channel based on the relative volume of the dialog-dedicated channel according to program information indicating the broadcast program attribute as the related information . The receiving apparatus according to claim 2 , wherein the volume setting unit determines a volume of the dialog dedicated channel based on the program information associated with user information indicating a user attribute as the related information. The receiving device according to any one of claims 1 to 3 , wherein the volume setting unit determines a volume of the dialog dedicated channel based on date and time information indicating a date and time when the broadcast program is presented as the related information. The receiving device according to any one of claims 1 to 4 , wherein the volume setting unit determines a volume of the dialog dedicated channel based on environment information indicating a sound reproduction environment as the related information. The auxiliary information includes area information indicating an area where the dialog sound is provided,
The dialog detecting unit, location of the receiving device, the receiving device according to any one of claims 1 to 5 to detect the audio data belonging to the region indicated by the region information. A receiving method in a receiving device,
A dialog detection process for detecting audio data indicating dialog audio to be reproduced on a predetermined channel from audio data received 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 volume setting process for determining the volume of the dialog-dedicated channel based on related information regarding viewing of the broadcast program;
I have a,
The auxiliary information includes, as the related information, volume information indicating a relative volume of the dialog-dedicated channel according to the dialog sound classification,
The receiving method , wherein the volume setting step includes a step of determining a volume of the dialog dedicated channel based on the volume information . In the computer of the receiving device,
Dialog detection procedure for detecting audio data indicating dialog audio to be reproduced on a predetermined channel from audio data received based on auxiliary information related to audio of a broadcast program,
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 volume setting procedure for determining the volume of the dialog-dedicated channel based on related information regarding viewing of the broadcast program;
A program for executing,
The auxiliary information includes, as the related information, volume information indicating a relative volume of the dialog-dedicated channel according to the dialog sound classification,
The volume setting procedure includes a procedure of determining a volume of the dialog dedicated channel based on the volume information.
Program .

Images