"Laura" <[email protected]> writes:

> Hello,
>
> I am a student, studying Hearing Engineering and Audiology.
> I have to give a presentation about the different noises (white, colored,
> narrow and broad band, any important forgotten?) and have to build a
> bridge to hearing aids. I do know, that for different tests during the
> development and repairment different noises are used, BUT can you give me
> a hint where to find more information about "when to use which noise"?
>
> Thanx a lot,
> Laura

Hi Laura,

This isn't quite what you're asking for, but could be useful. Zwicker
and Fastl's "Psychoacoustics: Facts and Models" (second updated edition)
has some information on the human auditory system as well as an entire
chapter on hearing aids. Additionally the chapter "Applications in
Audiology" contains a subsection titled "Speech in Background Noise."
I haven't read the material but it could be worth a look.
--
Randy Yates
Sony Ericsson Mobile Communications
Research Triangle Park, NC, USA
[email protected], 919-472-1124