| 摘要 |
<p>For purposes of transmission audio-signals are numerically represented by a plurality of spectral partial band signals by means of quadrature mirror-filtering. The quantification of the scanning values in partial bands, for example 24 partial bands, is regulated in such a manner that the quantifying noise levels of the individual partial band signals have approximately the same intervals as the hearing threshold of the human ear, which results from individual partial band signals. The intervals between the quantifying noise levels of the partial band signals with respect to the resulting hearing threshold are determined by the difference between the total information flow required for the coding and the total information flow available for coding. The available total information flow is determined and can vary depending on the signals.</p> |
