Adjusting the Sound

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Sometimes there is noise in the audio and the music contends with the voices. The table below offers some advice on adjusting sound. Use an audio equalizer feature in your audio or video editing program.

Frequency Speech Music Comment
10 - 100 Hz         No speech < 80 Hz
100 - 300 Hz          
300 - 600 Hz          
600Hz - 1.2k Hz               Music +2 dB around 800 Hz
1.2 - 2.4 kHz         Music - See below
2.4 - 4.8 kHz         Music -2 dB between 1.5 and 3.5 kHz
4.8 - 9.6 kHz          
9.6 - 20 kHz         Music +2 dB between 7 and 10 kHz

Key: The number of squares indicate the relative importance of the frequency category to sound presence and clarity.
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