Re: microphone and sound access in Ada

[Preben Randhol <randhol+news@pvv.org>]

Tony Gair wrote:
> I would be very interested in capturing microphone input and also
> using sound in an Ada application, (basically to use in a distributed
> application for voice conferencing)

Check out:

   http://www.speex.org/

For recording I guess one should consider using Alsa
http://www.alsa-project.org/ as OSS is on the way out.

> The system I am targetting is Linux but I would like to be able to
> extend this to windows later.

For sound in general I think a wrapper of the Ogg Vorbis libraries would
be very nice. Ogg files take as little space as MP3, but have better
quality and being free of any patent restrictions. Besides new MP3
players seem also to now add support for ogg. http://www.vorbis.com/
http://www.vorbis.com/faq.psp Besides Ogg works on most platforms.

Do anybody know of software/documentation/theory for matching two sound
files like Language training programs do. I mean that you try to
pronouce the word and the program tells you how well you did compared to
the pronounciations of somebody who speaks the language. You have to
account for different pitches etc... so how do they do it?

-- 
This is Ada95 land. On quiet nights you can hear C programmers debug.