Signal processing device, method, and program
The present technology relates to a signal processing device, method, and program that can improve encoding efficiency. A signal processing device includes: an acquisition unit that acquires reverb information including at least one of space reverb information specific to a space around an audio object or object reverb information specific to the audio object and an audio object signal of the audio object; and a reverb processing unit that generates a signal of a reverb component of the audio object on the basis of the reverb information and the audio object signal. The present technology can be applied to a signal processing device.
1. A signal processing device comprising:
processing circuitry configured to:
acquire reverb information including at least one of space reverb information specific to a space around an audio object or object reverb information specific to the audio object and an audio object signal of the audio object; and
generate a signal of a reverb component of the audio object on a basis of the reverb information and the audio object signal, wherein the space reverb information is acquired at a lower frequency than the object reverb information.
2. The signal processing device according to claim 1 , wherein in a case where identification information indicating past reverb information is acquired, the processing circuitry is configured to generate a signal of the reverb component on a basis of the reverb information indicated by the identification information and the audio object signal.
3. The signal processing device according to claim 2 , wherein the identification information includes information indicating the object reverb information, and
the processing circuitry is configured to generate a signal of the reverb component on a basis of the object reverb information indicated by the identification information, the space reverb information, and the audio object signal.
4. The signal processing device according to claim 1 , wherein the object reverb information includes information depending on a position of the audio object.
5. The signal processing device according to claim 1 , wherein the
processing circuitry is configured to generate a signal of the reverb component specific to the space on a basis of the space reverb information and the audio object signal, and to generate a signal of the reverb component specific to the audio object on a basis of the object reverb information and the audio object signal.
6. A signal processing method comprising:
acquiring, by a signal processing device, reverb information including at least one of space reverb information specific to a space around an audio object or object reverb information specific to the audio object and an audio object signal of the audio object; and
generating, by the signal processing device, a signal of a reverb component of the audio object on a basis of the reverb information and the audio object signal, wherein the space reverb information is acquired at a lower frequency than the object reverb information.
7. A non-transitory computer readable medium storing instructions that, when executed by a computer, cause the computer to execute processing comprising:
acquiring reverb information including at least one of space reverb information specific to a space around an audio object or object reverb information specific to the audio object and an audio object signal of the audio object; and
generating a signal of a reverb component of the audio object on a basis of the reverb information and the audio object signal, wherein the space reverb information is acquired at a lower frequency than the object reverb information.