Psychoacoustic time alignment
AssigneeAudioCodes Ltd.
InventorsIlan Shallom, Nitay Shiran
Life of this patent
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Abstract
A method of providing a quality measure for an output voice signal generated to reproduce an input voice signal, the method comprising: partitioning the input and output signals into frames; for each frame of the input signal, determining a disturbance relative to each of a plurality of frames of the output signal; determining a subset of the determined disturbances comprising one disturbance for each input frame such that a sum of the disturbances in the subset set is a minimum; and using the set of disturbances to provide the measure of quality.
Claims13
A method of providing a quality measure for an output voice signal generated to reproduce an input voice signal, the method comprising:
- partitioning the input and output signals into frames;
- for each frame of the input signal, determining a disturbance relative to each of a plurality of frames of the output signal;
- determining a subset of the determined disturbances comprising one disturbance for each input frame such that a sum of the disturbances in the subset set is a minimum;
- and
- using the set of disturbances to provide the measure of quality.
A computer readable storage medium containing a set of instructions for testing quality of an output signal provided by a CODEC responsive to an input signal, the instructions comprising:
- instructions for partitioning the input and output signals into frames;
- instructions for determining for each frame of the input signal, a disturbance relative to each of a plurality of frames of the output signal;
- instructions for determining a subset of the determined disturbances comprising one disturbance for each input frame such that a sum of the disturbances in the subset set is a minimum;
- and
- instructions for providing a measure of quality responsive to the disturbances.
Dependencies are inferred from the claim text.