Systems and Methods of Performing Gain Control
AssigneeQUALCOMM Incorporated
InventorsVenkatraman Srinivasa Atti, Venkatesh Krishnan
Life of this patent
Estimating the term…
Abstract
A particular method includes determining, based on an inter-line spectral pair (LSP) spacing corresponding to an audio signal, that the audio signal includes a component corresponding to an artifact-generating condition. The method also includes, in response to determining that the audio signal includes the component, adjusting a gain parameter corresponding to the audio signal. For example, the gain parameter may be adjusted via gain attenuation and/or gain smoothing.
Claims37
A method comprising:
- determining, based on an inter-line spectral pair (LSP) spacing associated with a frame of an audio signal, that the audio signal includes a component corresponding to an artifact-generating condition;
- and
- in response to determining that the audio signal includes the component, adjusting a gain parameter corresponding to the audio signal.
A method comprising:
- comparing an inter-line spectral pair (LSP) spacing associated with a frame of an audio signal to at least one threshold;
- and
- adjusting an audio encoding gain parameter corresponding to the audio signal at least partially based on a result of the comparing.
An apparatus comprising:
- a noise detection circuit configured to determine, based on an inter-line spectral pair (LSP) spacing associated with a frame of an audio signal, that the audio signal includes a component corresponding to an artifact-generating condition;
- and
- a gain attenuation and smoothing circuit responsive to the noise detection circuit and configured to, in response to determining that the audio signal includes the component, adjust a gain parameter corresponding to the audio signal.
An apparatus comprising:
- means for determining, based on an inter-line spectral pair (LSP) spacing associated with a frame of an audio signal, that the audio signal includes a component corresponding to an artifact-generating condition;
- and
- means for adjusting a gain parameter corresponding to the audio signal in response to determining that the audio signal includes the component.
A non-transitory computer-readable medium comprising instructions that, when executed by a computer, cause the computer to:
- determine, based on an inter-line spectral pair (LSP) spacing associated with a frame of an audio signal corresponding to an audio signal, that the audio signal includes a component corresponding to an artifact-generating condition;
- and
- adjust a gain parameter corresponding to the audio signal in response to determining that the audio signal includes the component.
Dependencies are inferred from the claim text.