SELECTION OF ENCODING MODES AND/OR ENCODING RATES FOR SPEECH COMPRESSION WITH OPEN LOOP RE-DECISION
First Claim
1. In a device configurable to encode speech, a method to perform an open loop re-decision comprising:
- representing a speech signal by amplitude components and phase components for a current frame and a past frame;
extracting uncompressed amplitude components and uncompressed phase components for a current frame;
retrieving the amplitude components and the phase components from the past frame;
generating a first set of features based on the uncompressed amplitude components from the current frame, the uncompressed phase components from the current frame, the amplitude components from the past frame, and the phase components from the past frame;
checking the first set of features as part of the open loop re-decision; and
determining a final encoding decision based on the checking.
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Abstract
In a device configurable to encode speech performing an open loop re-decision may comprise representing a speech signal by amplitude components and phase components for a current frame and a past frame. During the current frame, there may be an extraction of uncompressed amplitude components and uncompressed phase components. The amplitude components and the phase components from the past frame may then be retrieved. A set of features may be generated based on the uncompressed amplitude components from the current frame, the uncompressed phase components from the current frame, the amplitude components from the past frame, and the phase components from the past frame. The set of features may be checked as part of the open loop re-decision, and determining a final encoding decision based on the checking may be performed. The final encoding decision may be an encoding mode and/or encoding rate.
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Citations
41 Claims
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1. In a device configurable to encode speech, a method to perform an open loop re-decision comprising:
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representing a speech signal by amplitude components and phase components for a current frame and a past frame;
extracting uncompressed amplitude components and uncompressed phase components for a current frame;
retrieving the amplitude components and the phase components from the past frame;
generating a first set of features based on the uncompressed amplitude components from the current frame, the uncompressed phase components from the current frame, the amplitude components from the past frame, and the phase components from the past frame;
checking the first set of features as part of the open loop re-decision; and
determining a final encoding decision based on the checking. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 24, 25)
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17. A computer-readable medium comprising storing a set of instructions, wherein the set of instructions when executed by one or more processors comprises:
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means for representing a speech signal by amplitude components and phase components for a current frame and a past frame;
means for extracting uncompressed amplitude components and uncompressed phase components for the current frame;
means for retrieving amplitude components and phase components from a past frame;
means for generating a first set of features based on the uncompressed amplitude components from the current frame, the uncompressed phase components from the current frame, the amplitude components from the past frame, and the phase components from the past frame;
means for checking the first set of features as part of the open loop re-decision; and
means for determining a final encoding decision based on the means for checking. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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26. A device configurable to encode speech and perform an open loop-redicision comprising:
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means for representing a speech signal by amplitude components and phase components for a current frame and a past frame;
means for extracting uncompressed amplitude components and uncompressed phase components for a current frame;
means for retrieving the amplitude components and the phase components from the past frame;
means for generating a first set of features based on the uncompressed amplitude components from the current frame, the uncompressed phase components from the current frame, the amplitude components from the past frame, and the phase components from the past frame;
means for checking the first set of features as part of the open loop re-decision; and
means for determining a final encoding decision based on the checking. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification