I don't think there has ever been any 'standard' for pvoc files, at least as far
as the header is concerned. In CDP we use WAV and AIF, with a lot of extra
information put in proprietary chunks. Unix machines may use the snd format, or
no header at all, or IRCAM. Word ordering will also be machine-specific. So the
chances of a given pvoc file being portable are fairly slim.

However, if you know the pvoc parameters which created the file, and can hack
past the header (or lack of it), you should be able to recover the data, which
will always (as far as I know..) be interleaved amplitude/frequency for each
channel, for each successive anaylsis bin.

This is one of the reasons for the CNMAT SDIF initiative, which will eventually
provide a fully portable file format not only for pvoc data, but a lot else
besides.


Richard Dobson
Ben McAllister wrote:
> 
> Hi all,
> 
>         I had a similar problem to Kathy's on my mac, and increasing the memory
> requirement of perf in the Get Info window solved things.  Just an idea..
> 
> So my questions are:
>         Why is it that pvoc files on different platforms aren't compatible?  I use
> Unix machines at school, and am trying to use pvoc files I made there on my
> mac at home.  The mac thinks they're invalid.  Is it a header thing I might
> change in Soundhack, or (probably) shall I just reanalyze on the mac?
>         Does anyone know of a mac Utility which lets you examine the bin values
> (RK: like pvlook) of pvoc files?  Thanks.
> 
> Ben McAllister

Thanks.  I figured it was something along those lines.. :)

At 09:29 PM 9/24/98 +0100, Richard Dobson wrote:
>I don't think there has ever been any 'standard' for pvoc files, at least
as far
>as the header is concerned. In CDP we use WAV and AIF, with a lot of extra
>information put in proprietary chunks. Unix machines may use the snd
format, or
>no header at all, or IRCAM. Word ordering will also be machine-specific.
So the
>chances of a given pvoc file being portable are fairly slim.
>
>However, if you know the pvoc parameters which created the file, and can hack
>past the header (or lack of it), you should be able to recover the data,
which
>will always (as far as I know..) be interleaved amplitude/frequency for each
>channel, for each successive anaylsis bin.
>
>This is one of the reasons for the CNMAT SDIF initiative, which will
eventually
>provide a fully portable file format not only for pvoc data, but a lot else
>besides.
>
>
>Richard Dobson
>Ben McAllister wrote:
>> 
>> Hi all,
>> 
>>         I had a similar problem to Kathy's on my mac, and increasing the
memory
>> requirement of perf in the Get Info window solved things.  Just an idea..
>> 
>> So my questions are:
>>         Why is it that pvoc files on different platforms aren't
compatible?  I use
>> Unix machines at school, and am trying to use pvoc files I made there on my
>> mac at home.  The mac thinks they're invalid.  Is it a header thing I might
>> change in Soundhack, or (probably) shall I just reanalyze on the mac?
>>         Does anyone know of a mac Utility which lets you examine the bin
values
>> (RK: like pvlook) of pvoc files?  Thanks.
>> 
>> Ben McAllister
>> benmca@u.washington.edu

> >> So my questions are:
> >>         Why is it that pvoc files on different platforms aren't
> compatible?  I use
> >> Unix machines at school, and am trying to use pvoc files I made there on my
> >> mac at home.  The mac thinks they're invalid.  Is it a header thing I might
> >> change in Soundhack, or (probably) shall I just reanalyze on the mac?
> >>         Does anyone know of a mac Utility which lets you examine the bin
> values
> >> (RK: like pvlook) of pvoc files?  Thanks.

Mr. Tweaky on the Mills web site will let you do that.

Dave

> >> 
> >> Ben McAllister
> >> benmca@u.washington.edu
> >
> 

Thanks!

At 02:28 PM 9/24/98 -0700, David Madole wrote:
>> >> So my questions are:
>> >>         Why is it that pvoc files on different platforms aren't
>> compatible?  I use
>> >> Unix machines at school, and am trying to use pvoc files I made there
on my
>> >> mac at home.  The mac thinks they're invalid.  Is it a header thing I
might
>> >> change in Soundhack, or (probably) shall I just reanalyze on the mac?
>> >>         Does anyone know of a mac Utility which lets you examine the bin
>> values
>> >> (RK: like pvlook) of pvoc files?  Thanks.
>
>Mr. Tweaky on the Mills web site will let you do that.
>
>Dave
>
>> >> 
>> >> Ben McAllister
>> >> benmca@u.washington.edu
>> >
>> 
>

Ben McAllister
benmca@u.washington.edu