Signal processing device, signal processing method, and program

1. A signal processing device comprising:

processing circuitry configured to:

generate a signal of a reverb component on a basis of object audio data of an audio object and a reverb parameter for the audio object; and

perform rendering processing on the signal of the reverb component on a basis of the reverb parameter, wherein the reverb parameter includes a pre-delay delay time that indicates a delay time to when reflection sound or reverberation sound other than early reflection sound is first heard relative to a time when direct sound is heard and an early reflection delay time that indicates a delay time to when early reflection sound is heard.

2. The signal processing device according to claim 1 ,

wherein the reverb parameter includes position information indicating a localization position of a sound image of the reverb component, and

the processing circuitry is configured to perform the rendering processing on a basis of the position information.

3. The signal processing device according to claim 2 ,

wherein the position information includes information indicating an absolute localization position of the sound image of the reverb component.

4. The signal processing device according to claim 2 ,

wherein the position information includes information indicating a relative localization position, with respect to the audio object, of the sound image of the reverb component.

5. The signal processing device according to claim 1 ,

wherein the reverb parameter includes an impulse response, and

the processing circuitry is configured to generate the signal of the reverb component on a basis of the impulse response and the object audio data.

6. The signal processing device according to claim 1 ,

wherein the reverb parameter includes configuration information that indicates configuration of parametric reverb, and

the processing circuitry is configured to generate the signal of the reverb component on a basis of the configuration information and the object audio data.

7. The signal processing device according to claim 6 ,

wherein the parametric reverb includes a plurality of configuration elements including one or a plurality of filters.

8. The signal processing device according to claim 7 ,

wherein the filter includes a low-pass filter, a comb filter, an all-pass filter, or multi-tap delay.

9. The signal processing device according to claim 7 ,

wherein the reverb parameter includes a parameter used in processing by the configuration element.

10. A signal processing method comprising, performed by a signal processing device, the method comprising:

generating a signal of a reverb component on a basis of object audio data of an audio object and a reverb parameter for the audio object; and

performing rendering processing on the signal of the reverb component on a basis of the reverb parameter, wherein the reverb parameter includes a pre-delay delay time that indicates a delay time to when reflection sound or reverberation sound other than early reflection sound is first heard relative to a time when direct sound is heard and an early reflection delay time that indicates a delay time to when early reflection sound is heard.

11. A non-transitory computer readable medium storing instructions that, when executed by processing circuitry, perform a signal processing method comprising:

generating a signal of a reverb component on a basis of object audio data of an audio object and a reverb parameter for the audio object; and

performing rendering processing on the signal of the reverb component on a basis of the reverb parameter, wherein the reverb parameter includes a pre-delay delay time that indicates a delay time to when reflection sound or reverberation sound other than early reflection sound is first heard relative to a time when direct sound is heard and an early reflection delay time that indicates a delay time to when early reflection sound is heard.