Re: Audio playback and classes

[Vytautas Jancauskas]

On Thu, Jul 4, 2013 at 12:35 PM, Pantxo <address@hidden> wrote:
> Vytautas Jancauskas wrote
>>
>> All those issues should be sorted out now.
>
> A minor comment on attributes names : in octave objects
> properties/attributes are generally case insensitive (and presented
> lowercased to the user). You can use lower/tolower octave functions before
> sending the properties to your c++ class (in which properties should all be
> lower case).
>
> I tested your last changes on mac os x 10.7 :
>
>  - The compilation (with Clang) works fine with a few warnings :
> __player_play__.cc:30:21: warning: comparison of unsigned expression < 0 is
> always false [-Wtautological-compare] (idem at line 31 and 42)
>
>  - I see no segfault either with play or playblocking,
>
>  - The output sounds chopped, as if the signal was composed of multiple
> frames separated by zeros (or discontinuities at least). I didn't notice
> this issue before the last changes you commited.  I tried with two sampling
> frequencies for the same signal duration :
> fs = 44100;
> t = 0:1/fs:5;
> signal = cos (2 * pi * 440 * t);
> ap = audioplayer ([signal(:) signal(:)], fs);
> playblocking (ap)
> fs = 10000;
> t = 0:1/fs:5;
> signal = cos (2 * pi * 440 * t);
> ap = audioplayer ([signal(:) signal(:)], fs);
> playblocking (ap)
>
> Pantxo
>
>
>
> --
> View this message in context: 
> http://octave.1599824.n4.nabble.com/Audio-playback-and-classes-tp4654378p4655190.html
> Sent from the Octave - Maintainers mailing list archive at Nabble.com.


The same happens to me with those particular calls. However if I
change cos to sin or if I try playing back audio files with music in
them I can hear no glitches. Can someone with better octave knowledge
then mine can comment why can this be?