Methods and apparatus for audio signal equalization
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United States of America Patent
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Issued Date -
Sep 29, 2005
app pub date -
Mar 26, 2004
filing date -
Mar 26, 2004
priority date (Note) -
Abandoned
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Abstract
Methods and apparatus for adjusting a tonal quality of an audio signal include functional elements and/or steps, comprising producing a first intermediate signal containing a band of frequencies at a lower mid-range of the audio signal; producing a second intermediate signal containing a band of frequencies at an upper mid-range of the audio signal; combining the first intermediate signal, the second intermediate signal and the audio signal to produce a tonally adjusted version of the audio signal; and adjusting respective gains of the first and second intermediate signals to affect the tonal quality of the audio signal without substantially altering the tonal quality of the audio signal at frequencies between the lower mid-range and the upper mid-range.
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