Composers Desktop Project Forum

General Category => Announce => Topic started by: simonk on July 29, 2014, 02:33:47 PM

Title: PVOC update
Post by: simonk on July 29, 2014, 02:33:47 PM

New versions of Pvoc are now available.
Restores the proper behaviour with respect to outfile sample formats.

Mac
www.unstablesound.net/CDP_Updates/pvoc-osx-06-14.zip

Windows 32bit
www.unstablesound.net/CDP_Updates/pvoc-win32-06-14.zip

Title: Re: PVOC update
Post by: Xenakios on August 29, 2014, 03:10:22 PM

Thanks for the update! The sound format issue seems to be fixed.

However, I am wondering why the new build seems a bit slower than the old pvoc with the sound format bug? Can the speed difference be just because the old build wrote just 16 bit files whereas I am making the new build write 32 bit floating point files? Could it be that you accidentally posted a debug binary or some such for Windows now? :)

Actually, even the older pvoc program seems to run curiously slow compared to the CDP programs that actually process the analysed data...Might there be some chances for optimizations?

Title: Re: PVOC update
Post by: rwdobson on October 07, 2014, 12:51:01 PM

Is this the  PC or the Mac version showing the slowdown? 

Title: Re: PVOC update
Post by: Xenakios on October 07, 2014, 04:38:59 PM

Quote from: rwdobson on October 07, 2014, 12:51:01 PM

Is this the  PC or the Mac version showing the slowdown?

I tested only on Windows. The slowdown isn't very big.

Title: Re: PVOC update
Post by: Xenakios on February 13, 2015, 12:09:50 AM

It occurred to me that maybe the reason for the pvoc program being somewhat slow is because of its extreme amount of text output it produces...I realized this now that I tried running pvoc anal with a "long" input file (about 6 minutes) via the JUCE C++ library's ChildProcess. I already had to change that code in JUCE's Windows implementation to have more buffering for the process's text output. But now I ran into a situation where I had to increase the buffer amount even more.

Perhaps it could be a good idea to produce less progress text output while pvoc runs...?

Title: Re: PVOC update
Post by: Xenakios on February 22, 2015, 11:56:29 AM

Looks like the printouts probably are not a performance bottleneck in the code. (I've now done some performance analysis with AMD CodeXL.)

It'd be great to have the source code for the fixed pvoc program, so I could further investigate.

Title: Re: PVOC update
Post by: lynx on February 22, 2015, 06:51:10 PM

For the core CDP tools, I'd love to see a source code repository agreeable with git as well as cvs & svn.

Title: Re: PVOC update
Post by: Xenakios on July 20, 2015, 01:38:13 PM

Any chance the updated source codes could be made available?