Re: .aiff wrapping?

Hi James,

I'm using QT 6.5.1 and OSX 10.3.5 on an 800MHz iBook G4.

Well, I guess I solved my problem by just recording as 'int32'.  It sounds as it
should and I don't have the weird wrapping problem.  However, I am not sure why
32-bit float would work okay for you and not for me.

How does QT play back 32-bit float aiff?  Could it be converting the data to
integer before sending to the DAC?

Try recording this using 'int32' and then 'float32' and tell me if you hear a
difference in Finder.  If not, then it's my problem either with software or
hardware.

{SinOsc.ar(800, 0, 2) }.play;



Lance


Quoting James McCartney <asynth-Xhj3G7Rj6JI@xxxxxxxxxxxxxxxx>:

>
> On Aug 26, 2004, at 3:18 PM, Lance Putnam wrote:
>
> > The waveform wraps instead of properly clipping as shown in Sound
> > Studio.  I
> > attached a picture of the waveform.
>
>
> The file is definitely not clipped:
>
> {SinOsc.ar(800, 0, 1.4) }.play;
>
> % /usr/local/bin/sndfile-info SC_040826_163501.aiff
>
> Version : libsndfile-1.0.5
>
> ========================================
> File : SC_040826_163501.aiff
> Length : 524380
> FORM : 524372
>   AIFC
>   COMM : 24
>    Sample Rate : 44100
>    Frames      : 65536
>    Channels    : 2
>    Sample Size : 32
>    Encoding    : FL32
> PEAK : 24
>    version    : 1
>    time stamp : 1093563303
>      Ch   Position       Value
>       0   61963          1.4
>       1   0              0
>   SSND : 524296
>    Offset     : 0
>    Block Size : 0
>
> ----------------------------------------
> Sample Rate : 44100
> Frames      : 65536
> Channels    : 2
> Format      : 0x00020006
> Sections    : 1
> Seekable    : TRUE
> Duration    : 00:00:01.486
> Signal Max  : 1.4
>
>
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--
Lance Putnam
Graduate Student
Media Arts and Technology / UCSB
ljputnam-YszBOzCFqnGCCSEA9G1mgw@xxxxxxxxxxxxxxxx