Signal processing apparatus and signal processing method
AssigneeSony Group Corporation
InventorsYasunobu Murata, Kohei Asada, Yushi Yamabe
Life of this patent
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Abstract
Disclosed is a signal processing apparatus including a surrounding sound signal acquisition unit, a NC (Noise Canceling) signal generation part, a cooped-up feeling elimination signal generation part, and an addition part. The surrounding sound signal acquisition unit collects a surrounding sound to generate a surrounding sound signal. The NC signal generation part generates a noise canceling signal from the surrounding sound signal. The cooped-up feeling elimination signal generation part generates a cooped-up feeling elimination signal from the surrounding sound signal. The addition part adds together the generated noise canceling signal and the cooped-up feeling elimination signal at a prescribed ratio.
Claims13
A signal processing apparatus, comprising:
- a surrounding sound signal acquisition unit configured to collect a surrounding sound to generate a surrounding sound signal;
- a surrounding sound level detector configured to:
- divide the surrounding sound signal into a plurality of signals at a plurality of frequency bands;
- and
- detect a level of each signal of the plurality of signals;
- a noise canceling signal generation part configured to generate produce a noise canceling signal from the surrounding sound signal;
- a cooped-up feeling elimination signal generation part configured to generate a cooped-up feeling elimination signal from the surrounding sound signal;
- and
- an addition part configured to process the noise canceling signal and the cooped-up feeling elimination signal at a first ratio,
- wherein the first ratio is based on the level of each signal of the plurality of signals.
A sound processing method, comprising:
- collecting a surrounding sound to generate a surrounding sound signal;
- dividing the surrounding sound signal into a plurality of signals at a plurality of frequency bands;
- detecting a level of each signal of the plurality of signals;
- generating a noise canceling signal from the surrounding sound signal;
- generating a cooped-up feeling elimination signal from the surrounding sound signal;
- and
- processing the noise canceling signal and the cooped-up feeling elimination signal at a ratio,
- wherein the ratio is based on the level of each signal of the plurality of signals.
A non-transitory computer-readable medium having stored thereon computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:
- collecting a surrounding sound to generate a surrounding sound signal;
- dividing the surrounding sound signal into a plurality of signals at a plurality of frequency bands;
- detecting a level of each signal of the plurality of signals;
- generating a noise canceling signal from the surrounding sound signal;
- generating a cooped-up feeling elimination signal from the surrounding sound signal;
- and
- processing the noise canceling signal and the cooped-up feeling elimination signal at a ratio,
- wherein the ratio is based on the level of each signal of the plurality of signals.
Dependencies are inferred from the claim text.