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Rationale for Critical Bands
I am getting more and more confused by this discussion.
It would help if every contributor started by giving his/her
definition of Critical Band.
I am used to using Scharf's (1970) definition:
"The critical band is a band of that width at which subjective
responses change rather abruptly."
So the CB may be related to auditory filters, but it is not in the
Martin Braun wrote:
"1) The quality of speech perception does not deteriorate when sound
level increases from 50 to 80 dB.
2) The consonance vs. dissonance balance of a musical chord does not
change when sound level increases from 50 to 80 dB.
These observations tell us that spectral filtering, including band
filtering, in the auditory system is as good as unchanged in this
To me it is not clear to me where you refer to auditory filter and
where to critical band. It might help a great deal if you would
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