hearing integration time (David Gilfillan )

Subject: hearing integration time
From:    David Gilfillan  <davidgil(at)ihug.com.au>
Date:    Tue, 11 May 2004 11:51:06 +1000

Can anyone tell me where I can find out what the integration time of the
hearing system is in each octave band?

David Gilfillan
ph 0414504513
 

> -----Original Message-----
> From: AUDITORY Research in Auditory Perception
> [mailto:AUDITORY(at)LISTS.MCGILL.CA] On Behalf Of Ramin Pichevar
> Sent: Tuesday, 11 May 2004 1:12 AM
> To: AUDITORY(at)LISTS.MCGILL.CA
> Subject: Re: will phase distortion affect hearing result?
> 
> Xiao,
> As you already mentioned, audition is more sensitive to amplitude than
to
> phase. That is why, for example some performance criteria (i.e. the
Log
> Spectral distortion) used in speech coding are based on amplitude. On
the
> other hand, it seems that you sum up the outputs of filters in a
> filterbank for your hearing algorithm. Note that a phase distortion in
> each of the filters can cause an amplitude distortion in the output
(you
> are adding  complex numbers: an amplitude and a phase for each
filter).
> Therefore a phase distortion may result in an amplitude distortion.
> Best regards,
> Ramin
> 
> 
> 
> -----Message d'origine-----
> De : AUDITORY Research in Auditory Perception
> [mailto:AUDITORY(at)LISTS.MCGILL.CA]De la part de xiao xianbo
> Envoyé : 10 mai 2004 10:18
> À : AUDITORY(at)LISTS.MCGILL.CA
> Objet : will phase distortion affect hearing result?
> 
> 
> Dear List,
>         I am working on algorithms on digital hearing aid. As I know,
> auditory is sensitive to amplitude on every frequency. Then how about
> phase
> infomation? Will all the filters necessarily be linear phase in a
multi-
> band
> hearing aid?
>         Any discussion or paper recommendation will be appreciated.