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US 12,745,039 B2Granted
Sound signal processing method and sound signal processing devices
AssigneeTymphany Hk Limited
InventorsRyan Meng-Wei Lu, Tzung-You Tsai
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Abstract
A sound signal processing includes obtaining sound signals; amplifying the sound signals based on a plurality of analog gain values to generate a plurality of amplified sound signals, where each amplified sound signal corresponds to a respective analog gain value; digitizing the plurality of amplified sound signals to produce plurality of digital sound signals; determining whether the plurality of digital sound signals are clipped or non-clipping, and selectively outputting the non-clipping sound signals; and applying a dynamic range control program to the non-clipping sound signals to adjust them.
Claims14
A sound signal processing method, comprising:
- obtaining a sound signal;
- amplifying the sound signal according to a plurality of analog gain values to generate a plurality of amplified sound signals, wherein the plurality of amplified sound signals corresponds to the plurality of analog gain values respectively, wherein the plurality of analog gain values comprises a first analog gain value and a second analog gain value;
- digitizing the plurality of amplified sound signals to generate a plurality of digital sound signals, wherein the plurality of digital sound signals comprises a first digital sound signal and a second digital sound signal, the first analog gain value corresponds to the first digital sound signal and the second analog gain value corresponds to the second digital sound signal, and the first analog gain value is greater than the second analog gain value;
- determining whether the plurality of digital sound signals are clipping signals or non-clipping signals, and selectively outputting the non-clipping sound signals, which comprises:
- outputting the first digital sound signal when the first digital sound signal is determined to be the non-clipping signal;
- and
- outputting the second digital sound signal when the second digital sound signal is determined to be the non-clipping signal and the first digital sound signal is determined to be the clipping signal;
- and
- performing a dynamic range control program on the non-clipping sound signals to adjust the non-clipping sound signals when the second digital sound signal is outputted.
6 more elements
A sound signal processing device, comprising:
- an audio device for obtaining a sound signal;
- a pre-amplifier, connecting to the audio device and having a plurality of analog gain values, for amplifying the sound signal according to a plurality of analog gain values to generate a plurality of amplified sound signals, wherein the plurality of amplified sound signals correspond to the plurality of analog gain values, respectively, wherein the plurality of analog gain values comprises a first analog gain value and a second analog gain value;
- an analog digital converter, connecting to the pre-amplifier, for digitizing the plurality of amplified sound signals to generate a plurality of digital sound signals, wherein the plurality of digital sound signals comprises a first digital sound signal and a second digital sound signal, the first analog gain value corresponds to the first digital sound signal and the second analog gain value corresponds to the second digital sound signal, and the first analog gain value is greater than the second analog gain value;
- a microprocessor connecting to the analog digital converter and the pre-amplifier, and receiving the plurality of digital sound signals;
- and
- a controller, connecting to the analog digital converter and the microprocessor, for determining whether the plurality of digital sound signals are clipping signals or non-clipping signals, and the controller controlling the microprocessor to selectively output the non-clipping sound signals, which comprises:
- outputting the first digital sound signal when the first digital sound signal is determined to be the non-clipping signal;
- and
- outputting the second digital sound signal when the second digital sound signal is determined to be the non-clipping signal and the first digital sound signal is determined to be the clipping signal;
- wherein the controller controls the microprocessor to perform a dynamic range control program on the non-clipping sound signals to adjust the non-clipping sound signals.
7 more elements
Dependencies are inferred from the claim text.