Broadcast receiving device and reverberation sound processing method

Abstract

This invention provides technology for more effectively transmitting or receiving advanced digital broadcasting services. [Solution] The broadcast receiving device is capable of receiving broadcast waves containing signals for each sound source, and comprises a broadcast receiving unit that receives broadcast waves, a transmitting unit that transmits audio signals to an audio output device having multiple speakers based on the signals for each sound source contained in the received broadcast waves, and a control unit. The control unit acquires sound field characteristics, which are the acoustic characteristics at the recording location of the sound source's audio, based on the information contained in the broadcast waves, generates reverberation signals for each sound source based on the signals for each sound source and the sound field characteristics, and generates a reverberation-enhanced audio signal in which reverberation is added to the audio of the signals for each sound source, based on the signals for each sound source and the reverberation signals for each sound source. The transmitting unit transmits the reverberation-enhanced audio signal to the audio output device as an audio signal.

Claims

1. A broadcast receiving device capable of receiving broadcast waves containing signals from different sound sources, A broadcast receiving unit that receives the aforementioned broadcast waves, Multiple speakers that output sound based on the signals for each sound source contained in the received broadcast wave, Control unit and Equipped with, The control unit, Based on the information contained in the broadcast wave, the sound field characteristics, which are the acoustic characteristics at the recording location of the sound source, are obtained. Based on the signals for each sound source and the sound field characteristics, a reverberation signal for each sound source is generated. Based on the signals for each sound source and the reverberation signals for each sound source, a reverberation-added audio signal is generated in which reverberation is added to the audio of the signal for each sound source. The sound generated from the reverberation-added sound signal is output from the plurality of speakers. Broadcast receiving equipment.

2. In the broadcast receiving device according to claim 1, The control unit acquires the sound field characteristics from the information contained in the broadcast wave. Broadcast receiving equipment.

3. In the broadcast receiving device according to claim 1, It is equipped with a communication unit that receives data via a network, The control unit identifies the recording location based on the information contained in the broadcast wave, and obtains the sound field characteristics of the recording location from the server via the network through the communication unit. Broadcast receiving equipment.

4. In the broadcast receiving device according to claim 1, The control unit, The listening position at the aforementioned recording location is specified. The signal for the reverberation-added audio is generated such that the reverberation-added audio closely resembles the audio heard at the listening position for each of the sound sources. Broadcast receiving equipment.

5. In the broadcast receiving device according to claim 4, The control unit changes the listening position in accordance with the operation of partially enlarging the broadcast image. Broadcast receiving equipment.

6. In the broadcast receiving device according to claim 1, The control unit generates a signal for the reverberating sound so that the reverberating sound is corrected based on the head transfer characteristics of the viewer. Broadcast receiving equipment.

7. In the broadcast receiving device according to claim 1, The aforementioned recording location is a hall or theater. Broadcast receiving equipment.

8. A method for adding reverberation sound in a broadcast receiving device capable of receiving broadcast waves containing signals from different sound sources, Receiving the aforementioned broadcast wave, Based on the information contained in the received broadcast wave, the sound field characteristics, which are the acoustic characteristics at the recording location of the sound source, are obtained. Based on the signals for each sound source and the sound field characteristics, a reverberation signal for each sound source is generated. Based on the signals for each sound source and the reverberation signals for each sound source, a reverberation-added audio signal is generated in which reverberation is added to the audio of the signal for each sound source. The sound generated from the reverberation-added sound signal is output from multiple speakers. A method for adding reverberation.

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