Method of preparing data, in particular encoded voice signal parameters
First Claim
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1. A method of preparing data, in particular encoded voice signal parameters for transmission purposes, having the following steps:
- output data of a voice signal source are analyzed with regard to identical signal parameters,Signal parameters out of digitized voice data of the voice signal source are generated,identical signal parameters are combined interval by interval in quantized form,the total number of bits for at least two types of combined signal parameters is reduced such that the quantization stages are approximately equally distributed over the individual intervals and that the bit difference from the total number of unreduced bits with respect to the next-higher power of two is suppressed.
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Abstract
Method of preparing data, in particular voice signal parameters for transmission at a low bit rate, identical signal parameters are combined interval by interval in quantized form; for
further bit reduction, bits are suppressed from the total number of bits of at least two intervals, the bit difference to be suppressed being formed on the basis of the total number of unreduced bits with respect to the next-higher power of two; and the
procedure supplies a better voice quality than in the case of changing the number of quantization stages by multiples of 2.
11 Citations
6 Claims
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1. A method of preparing data, in particular encoded voice signal parameters for transmission purposes, having the following steps:
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output data of a voice signal source are analyzed with regard to identical signal parameters, Signal parameters out of digitized voice data of the voice signal source are generated, identical signal parameters are combined interval by interval in quantized form, the total number of bits for at least two types of combined signal parameters is reduced such that the quantization stages are approximately equally distributed over the individual intervals and that the bit difference from the total number of unreduced bits with respect to the next-higher power of two is suppressed. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification