Patent ID: 7519442

Claim:
System for adjusting the sound volume of a digital sound recording, comprising: means for determining, in absolute values, for a recording, the maximum amplitude values for sound frequencies audible for the human ear, means for calculating the possible gain (Gv) for a specified sound level setting, between the maximum amplitude value (A 2 ) and the maximum amplitude value (Am) for all frequencies combined, the possible gain being determined by applying the following formula: Gv= 20 log( A 2 /Am ), means for reproducing the recording 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, the means for reproducing comprising a dynamic reproduction sound level adjustment function on the recording including authorizing a specified gain for the low-pitched and/or high-pitched sounds in the recording, the gain corresponding approximately to the attenuation applied during the production of the recording.