Process for adjusting the sound volume of a digital sound recording
AssigneeTouchTunes Music Corporation
InventorsGuy Nathan, Dominique Dion
Life of this patent
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Abstract
The present invention relates to a process for adjusting the sound volume of a digital sound recording characterized 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.
Claims8
Process for adjusting the sound volume of a digital sound recording, comprising:
- determining, in absolute values, for a recording, the maximum amplitude values for sound frequencies audible for the human ear,
- calculating the possible gain (Gv) for a specified sound level setting, between the maximum amplitude value (A2) and the maximum amplitude value (Am) for all frequencies combined, the possible gain being determined by applying the following formula:
- Gv=20log(A2/Am),
- 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 reproduction step comprising a dynamic reproduction sound level adjustment step 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.
Dependencies are inferred from the claim text.