Re: [LAU] Music for the deaf

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To: Giso Grimm <gg3137@...>
Cc: <linux-audio-user@...>
Date: Wednesday, January 20, 2010 - 12:48 am

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Not an answer to your question but on the topic and very interesting all the
same.
http://www.ted.com/talks/evelyn_glennie_shows_how_to_listen.html

On Wed, Jan 20, 2010 at 7:57 AM, Giso Grimm wrote:

> Simon Fielding wrote:

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Not an answer to your question but on the topic and very interesting all th=
e same.http://www.ted.com/talks/evelyn_glennie_shows_how_to_listen.ht=
ml

On Wed, Jan 20, 2010 at 7:57 AM, Giso Grimm =
<gg3137@vegri.net<=
/a>> wrote:
Simon Fielding wrote:

br>
e
or
m

> she would like to produce a CD of her singing for the children to take=

> home and use. I would really appreciate any help members can give me a=
s

> any suggestions about this? (eg effects for recording, effects for the=

> headphone mix etc)

For most hearing impaired listeners, less reverberation is usually
better (if understanding the words is desirable). The effect of
compression very much depends on the accompaniment and/or distracting
noises; in a clean situation compression usually makes things worse (see
e.g., R. Plomp: The negative effect of amplitude compression in
multichannel hearing aids in the light of the modulation-transfer
function. J. Acoust. Soc. Am., vol 83(6), 1988). Try to avoid pops
during recording.

>

-
br>
if

If they will listen via loudspeaker and wear their hearing aids
(assuming that they have one), all individualized frequency shaping is
already done by the hearing aid. Listening via headphone is not really
working with hearing aids, thus an individual frequency shaping might be
beneficial. However, for that you need to know a bit about the
individual hearing (e.g., hearing threshold and whether it is
sensorineural or conductive loss, as a bare minimum). A very simple rule
of thumb is to apply a frequency dependent gain which is 40% of hearing
threshold for sensorineural loss and 100% of threshold for conductive loss.=

Linux audio tools can be used to do batched pre-filtering of audio
material based on individual hearing loss (e.g., the command line tool
'applyplugin' which applies LADSPA-Plugins to files, can load equal=
izers
and set their gains).

Best regards,

Giso

>

ser@lists.linuxaudio.org

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Messages in current thread:
[LAU] Music for the deaf, Simon Fielding, (Tue Jan 19, 1:32 pm)
Re: [LAU] Music for the deaf, Giso Grimm, (Tue Jan 19, 9:57 pm)
Re: [LAU] Music for the deaf, Simon Fielding, (Wed Jan 20, 10:03 am)
Re: [LAU] Music for the deaf, Danni Coy, (Wed Jan 20, 12:48 am)
[LAU] learning how to listen..., Jörn Nettingsmeier, (Wed Jan 20, 1:22 am)
Re: [LAU] learning how to listen..., Ricardus Vincente, (Wed Jan 20, 6:29 pm)
Re: [LAU] Music for the deaf, Lorenzo, (Tue Jan 19, 1:52 pm)
Re: [LAU] Music for the deaf, Simon Fielding, (Tue Jan 19, 2:25 pm)