PROCESS FOR ADJUSTING THE SOUND VOLUME OF A DIGITAL SOUND RECORDING

摘要

The present invention relates to a process for adjusting the sound volume of a digital sound recording characterised in that it comprises: a step consisting of determining, in absolute values, for a recording, the maximum amplitude values for sound frequencies audible for the human ear, a step consisting of calculating the possible gain for a specified sound level setting, between the maximum amplitude value determined above and the maximum amplitude value for all frequencies combined, a step consisting of reproducing the recording with a sound card by automatically adjusting the amplification gain level making it possible to obtain a sound level for the recording of a specified value so that it corresponds to the gain calculated for this recording.

主权项

1. A method for adjusting sound volume of a recording, the method comprising:
determining a maximum amplitude value for sound frequencies audible for the human ear in the recording, calculating a volume gain, for a specified sound level as being the root mean square of voltage values applied to a speaker for the recording, based on the ratio of the determined maximum amplitude value to a maximum amplitude value for all frequencies combined corresponding to the specified sound level, and reproducing the recording by automatically adjusting an amplification level based on the calculated volume gain to obtain the specified sound level, wherein the reproducing further comprises dynamically adjusting a sound level of the recording by authorizing a specified gain for low-pitched and/or high-pitched sounds in the recording, the specified gain corresponding approximately to the calculated volume gain applied during the reproducing of the recording.