Re: AUConverter crackling
Re: AUConverter crackling
- Subject: Re: AUConverter crackling
- From: William Stewart <email@hidden>
- Date: Mon, 12 Jan 2004 15:44:54 -0800
Yes indeed that does sound like the same problem. The AC's resampler is
NOT about dynamic adjustment (that's why to get a different sample rate
you have to make a new audio converter) and also why we have the
varispeed AU.
Bill
On 12/01/2004, at 7:21 AM, Hugues Pisapia wrote:
Well,
I went back into this thread and it seems to be also a problemk I am
experiencing... I'm using the HAL through Java to access the recording
(and playback) facilities. I want to perform resampling on the fly and
get crackling sound, apparently, between each chunk of audio that go
throught the AC.
Is that the same problem, and do I have to use the AudioUnits as well?
If so... What is the AC for?
Hugues
Stefan Werner wrote:
Hi,
To: email@hidden
From: Chris Rogers <email@hidden>
Subject: Re: AUConverter crackling
The AudioConverter is not designed to change sample-rate on the fly
like
this. The AUVarispeed AudioUnit should be perfectly adapted to this
application by tweaking the "rate" parameter on the fly.
OK, I'll try that. Is it using FFT or is it doing simple resampling?
I need the latter, that's why I tried the AUConverter. To me,
AUVarispeed sounded more like timestretching than resampling.
I suppose there's no other documentation than the WWDC presentation
Bill mentioned?
Stefan
http://www.hdm-stuttgart.de/~sw19/audiospace/
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.
--
mailto:email@hidden
tel: +1 408 974 4056
________________________________________________________________________
__
"Much human ingenuity has gone into finding the ultimate Before.
The current state of knowledge can be summarized thus:
In the beginning, there was nothing, which exploded" - Terry Pratchett
________________________________________________________________________
__
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.