Downsampling / channel reduction
Downsampling / channel reduction
- Subject: Downsampling / channel reduction
- From: "Bill Cunning" <email@hidden>
- Date: Tue, 3 Jun 2008 15:26:54 -0400
- Thread-topic: Downsampling / channel reduction
Hi,
I have been poking around for a way to do this other than by hand and have not actually found anything that I can see
In our application I need 8khz, 1 channel, 16bit audio from the input device (mic) .. and everything works fine when the hardware device supports those settings. The chalenge is when it does not, and rather than doing downsampleing (and channel deinterleaving?) by hand, I figure there must be a way to do this in core audio.
I was looking at the varispeed unit, but the only samples show that being used on the application side of hardware output .. can a graph be created with a varispeed unit on the application side of hadware input, keeping the same callback type of thing so that I can get at the raw (donwsampled) audio data?
It seems like it should be a simple (relatively) thing to do, and was wondering if anyone had any pointers or ideas before I just start flailing around :)
Thanks!
Bill Cunning
<<winmail.dat>>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden