Re: question of time (and frames)
Re: question of time (and frames)
- Subject: Re: question of time (and frames)
- From: John Clayton <email@hidden>
- Date: Sun, 02 Nov 2008 21:46:13 +0100
so if the input notify callback requests 512 frames, and I've got mono
input (1 channel) at 44.1khz, then 512 frames is equal to 512 /
44100.0 seconds, correct?
Thanks
--
John Clayton
Skype: johncclayton
On 2/11/2008, at 8:56 PM, tahome izwah wrote:
Generally, frames are samples that contain all channels. 1 stereo
frame = 2 samples. 1 5.1 surround frame = 6 samples. 1 mono frame = 1
sample.
HTH
--th
2008/11/2 John Clayton <email@hidden>:
Hi All,
Hope you've had a good weekend out there. Question re: time. I
want to
calculate the amount of time that some frames take up - and just to
make
sure that this simple task isn't something I've misunderstood - my
belief is
that I can simply say:
1 seconds of time = # frames/samples per second
correct? More specifically, this is entirely independant of the
number of
channels right? So if I wanted to simulate 13 seconds of silence,
I'd just
return
13 * sample_rate_per_second
frames of null data from an input routine.
hope this makes sense, cheers
Thanks
--
John Clayton
Skype: johncclayton
This email sent to email@hidden
_______________________________________________
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