Re: question of time (and frames)
Re: question of time (and frames)
- Subject: Re: question of time (and frames)
- From: "tahome izwah" <email@hidden>
- Date: Mon, 3 Nov 2008 08:00:55 +0100
Yes. As a matter of fact, the same is true for a stereo input, or a
multichannel input. 512 frames @ 44.1kHz are always 512/44100 seconds.
--th
2008/11/2 John Clayton <email@hidden>:
> 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
>>>
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