[chuck-users] SndBuf | accessing samples from stereo file

[Dana Batali]

Hi Mario , I’m not at my computer right now, but wonder if you’ve tried
SndBuf2?

On Wed, Jun 16, 2021 at 8:57 AM mario buoninfante <
mario.buoninfante at gmail.com> wrote:

> Hi,
>
> I'm working on an algorithm that requires accessing samples from a
> stereo file and am using SndBuf to achieve that.
> I was expecting that to work so that samples were returned in "frames",
> for example:
>
> '''
>
> buffer.valueAt(0) = sample 0 on left channel
>
> buffer.valueAt(1) = sample 0 on right channel
>
> buffer.valueAt(2) = sample 1 on left channel
>
> buffer.valueAt(3) = sample 1 on right channel
>
> ...
>
> '''
>
> but that doesn't seem to be the case.
>
> Also SndBuf.samples() always returns the same amount of samples,
> regardless the file being mono or stereo (the size matches the time in
> msec, so it seems that reports the size of a single channel).
>
> I also played around with .channel(n), but I get the same set of samples
> regardless the channel number used.
>
> Then I just now found out that basically the channels seem to be stored
> (or at least accessed) sequentially.
> Let's say you have a stereo file containing 1024 samples (512 per
> channel), you get:
>
> samples 0-511 = left channel
>
> samples 512-1023 = right channel
>
> I was wondering if my assumption is correct, but also if this is
> intentional.
>
>
> Cheers,
>
> Mario
>
>
>
> --
> musician, QA engineer
> http://mbuoninfante.tumblr.com/
> https://vimeo.com/creativecodingsalerno
> https://github.com/mariobuoninfante
>
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