[chuck-users] sndBuf.valueAt (Forrest Curo asks)

[Forrest Curo]

Um. that works.
So does this:
SndBuf s => blackhole;
"/home/forrest/chuck/examples/basic/om.wav" => s.read;
float samples;
0 => int i;
while (s.pos() < s.samples())  {
    <<< s.last() >>>;
    s.pos() => i;
    (s.valueAt(i)) => samples;
    <<< samples >>>;
    samp => now;
}

I was having trouble trying to read a sndBuf like an array, or put its
contents into an array.
Maybe I was reading numbers off the end of the file. Declaring
'float samples[]; '
and doing
's.valueAt(i) => samples[i];'

got me a 'Null pointer' error.

Stumbling over syntax, I guess. Thanks for help!

On Sun, Apr 19, 2020 at 10:54 AM Perry Cook <prc at cs.princeton.edu> wrote:

> This is truly odd.  I don’t have easy means to test it.   I don’t
> know why it wouldbe broken dependent on the dac, however.
>
> For fun you might try something like this, just to verify that the
> valueAt() function is what’s busted.
>
> SndBuf s => blackhole;
> “Fred.wav” => s.read;
>
> while (s.pos() < s.samples())  {
>     <<< s.last() >>>;
>     samp => now;
> }
>
> PRC
>
> > On Apr 19, 2020, at 9:00 AM, chuck-users-request at lists.cs.princeton.edu
> wrote:
> >
> > Send chuck-users mailing list submissions to
> >       chuck-users at lists.cs.princeton.edu
> >
> > To subscribe or unsubscribe via the World Wide Web, visit
> >       https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> > or, via email, send a message with subject or body 'help' to
> >       chuck-users-request at lists.cs.princeton.edu
> >
> > You can reach the person managing the list at
> >       chuck-users-owner at lists.cs.princeton.edu
> >
> > When replying, please edit your Subject line so it is more specific
> > than "Re: Contents of chuck-users digest..."
> >
> >
> > Today's Topics:
> >
> >   1. sndBuf.valueAt (Forrest Curo)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Sun, 19 Apr 2020 07:30:15 -0700
> > From: Forrest Curo <treegestalt at gmail.com>
> > To: ChucK Users Mailing List <chuck-users at lists.cs.princeton.edu>
> > Subject: [chuck-users] sndBuf.valueAt
> > Message-ID:
> >       <CAAn-Ecy0LKVHCWmoUL2Y7w67rsibhRAHOOkN1neZyU=az3vm=
> g at mail.gmail.com>
> > Content-Type: text/plain; charset="utf-8"
> >
> > Using chuck linux-jack this gives me reasonable numbers between -1 and 1.
> > Using chuck linux-alsa I'm able to play the file I've read into sndBuf;
> but
> > trying to copy it via .valueAt gives absurdly high ["out of range"]
> numbers
> > at each point. [It can be a different high number different times I run
> > chuck, but the number it is turns up at every point I sample.]
> >
> > Is there a fix for this? Aside from using jack on a computer where it
> > befnurgles the midi?
> > -------------- next part --------------
> > An HTML attachment was scrubbed...
> > URL: <
> http://lists.cs.princeton.edu/pipermail/chuck-users/attachments/20200419/76d94eef/attachment-0001.html
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > chuck-users mailing list
> > chuck-users at lists.cs.princeton.edu
> > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
> >
> >
> > End of chuck-users Digest, Vol 176, Issue 4
> > *******************************************
>
> _______________________________________________
> chuck-users mailing list
> chuck-users at lists.cs.princeton.edu
> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.cs.princeton.edu/pipermail/chuck-users/attachments/20200419/6ed565f1/attachment.html>