Audio processing device, method, and program

Patent metadata

Field	Value
Publication number	US-9653065-B2
Application number	US-201314651535-A
Country	US
Kind code	B2
Filing date	Dec 5, 2013
Priority date	Dec 19, 2012
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

Provided is an audio processing device including a narration canceling section configured to generate a narration canceling signal by removing a narration component from an input signal, and a reverberation adding section configured to add a reverberation effect to the narration canceling signal.

First claim

The invention claimed is:

1. An audio processing device comprising:
a narration canceling section that generates a narration canceling signal by removing a narration component from an input signal; and
a reverberation adding section that adds a reverberation effect to the narration canceling signal;
wherein the narration canceling section generates a center suppression signal having a plurality of channels by suppressing a center orientation component included in the input signal having a plurality of channels, generates, on a basis of the input signal having a plurality of channels, a monaural center orientation removal signal in which the center orientation component has been removed, and configures the narration canceling signal by adding the center suppression signal and the center orientation removal signal together.

2. The audio processing device according to claim 1 ,
wherein the narration canceling section generates the narration canceling signal that includes a pseudo-cheer component.

3. The audio processing device according to claim 1 ,
wherein the narration canceling section further generates a pseudo-cheer signal that is a pseudo-cheer component and configures the narration canceling signal by adding the center suppression signal, the center orientation removal signal, and the pseudo-cheer signal together.

4. The audio processing device according to claim 3 ,
wherein the narration canceling section performs level adjustment of the pseudo-cheer signal on a basis of a comparison result between a level of the input signal and a level of the center orientation removal signal.

5. The audio processing device according to claim 4 ,
wherein the input signal is an audio signal of a sports related content.

6. The audio processing device according to claim 5 ,
wherein the narration canceling section detects a score scene on a basis of the input signal and performs level adjustment of the pseudo-cheer signal on a basis of a detection result of the score scene.

7. The audio processing device according to claim 6 ,
wherein the narration canceling section detects a non-cheer scene on a basis of the input signal and performs level adjustment of the pseudo-cheer signal on a basis of a detection result of the non-cheer scene.

Assignees

• Sony Corp

Inventors

• Noguchi Masayoshi
• Takahashi Naoya
• FUJIHARA Masashi
• Shiraishi Goro
• Fujishita Kaneaki

Classifications

• G10K15/12

  using electronic time-delay networks · CPC title

• H04R27/00

  Public address systems (circuits for preventing acoustic reaction H04R3/02; circuits for distributing signals to loudspeakers H04R3/12; {monitoring or testing arrangements for public address systems H04R29/007}; amplifiers H03F) · CPC title

• G10K11/175 Primary

  using interference effects; Masking sound · CPC title

• G10K15/08 Primary

  Arrangements for producing a reverberation or echo sound {(modifying acoustic properties to change reverberation time G10K11/002)} · CPC title

• H04S5/00

  Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation · CPC title