Re: Sound manipulation in Cocoa
Re: Sound manipulation in Cocoa
- Subject: Re: Sound manipulation in Cocoa
- From: Jens Bauer <email@hidden>
- Date: Thu, 5 Feb 2004 14:18:32 +0100
Hi Chad,
I'd say CoreAudio (because I know how to use it; but maybe there is an
easier way).
I'll definitely recommend that you subscribe to the CoreAudio list and
ask the question there.
CoreAudio is mostly for real-time operations, but you would probably
want to be able to record/playback some audio.
I just saw this message (posted by Wiliam Stewart) today:
>We're about to rev the CoreAudio SDK (yes, I know I keep saying this,
but really we are going to soon!)
>
>That has some splendid examples to take files, convert them into PCM
(regardless of their original format), including an example we've just
>finished adding that will also read data from a QT movie and let you
play it through Core Audio directly. I think that would be a good basis
>for the kind of thing you are proposing
This was in reply to a question about manipulating aiff, wav, aac and
mp3 files.
I don't know CoreAudio SDK myself, but you'd probably want to look at
it. =)
On Thursday, Feb 5, 2004, at 09:21 Europe/Copenhagen, Chad Armstrong
wrote:
What would be the best way to manipulate sound (AIFF or MP3,
preferably), while using a Cocoa interface? The NSSound class seems
to be fairly limited in what it can do, and I'm looking for stronger
and more flexible tools. Would CoreAudio or Quicktime be the way to
go? Or are there even tools available in Java? The type of
manipulation I would like to perform would be speed and pitch
manipulation, in addition to standard audio playback (i.e. iTunes or
an MP3 player).
Love,
Jens
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