VOLUME CONTROLLING METHOD AND DEVICE

摘要

A volume controlling method and a volume controlling device reduce volume adjustment delay. The method includes acquiring a smooth volume and smooth envelope of a signal sampling point at the current moment. An autocorrelation value of the smooth envelope is determined within a first time period and the smooth envelope within each second time period according to the smooth envelope at the current moment and multiple pre-stored smooth envelopes at historical moments. The autocorrelation value having the maximal numerical value is determined from the determined respective autocorrelation values as the maximal autocorrelation value. A combined smooth volume at the current moment is determined according to the smooth volume at the current moment and the maximal autocorrelation value. A volume gain is determined according to the combined smooth volume and a predetermined reference volume. The volume of a voice signal is controlled according to the volume gain at the current moment.

主权项

1. A volume controlling method, comprising:
acquiring a smooth volume and a smooth envelope of a voice signal at the current moment; determining an autocorrelation value of the smooth envelope within a first time period and the smooth envelope within each second time period according to the smooth envelope at the current moment and multiple pre-stored smooth envelopes at historical moments; wherein, the first time period is a time period comprising the current moment and the latest historical moment, and the second time periods are multiple time periods comprising the historical moments; determining the autocorrelation value having the maximal numerical value from the determined respective autocorrelation values as the maximal autocorrelation value; determining a combined smooth volume at the current moment according to the smooth volume at the current moment and the maximal autocorrelation value; determining a volume gain at the current moment according to the combined smooth volume and a predetermined reference volume; and controlling the volume of a voice signal at next moment according to the volume gain at the current moment.