If you have a problem or need to report a bug please email :

There are 3 sections to this support area:

DOWNLOADS: access to product manuals, support files and drivers

HELP & INFORMATION: tutorials and example files for learning or finding pre-made modules for your projects

USER FORUMS: meet with other users and exchange ideas, you can also get help and assistance here

Last Poly Voice Extractor

DSP related issues, mathematics, processing and techniques

Re: Last Poly Voice Extractor

Postby trogluddite » Mon Feb 24, 2020 4:36 am

I've just uploaded a new version of the "last voice extractor" to the top post. This should fix the problem which Adam pointed out regarding the "doubled up" notes (thanks again!), and it shaves a few more CPU cycles off the code.

For anyone who's interested, the problem was a silly oversight on my part. The module relies on there being a memory buffer shared by all blocks of four SSE channels, which a 'mem' doesn't usually do (each block of four gets a duplicate at a different address). The fact that it was always the fifth note which caused the problem was the big clue. This is now sorted - my latest favourite toy, the "Ruby Frame buffer", ensures that the address is truly shared across all poly SSE blocks. I also recalled that the sample counter is reset to zero for every note-on in an SSE block, so most of the code is now hopped over the vast majority of the time.
All schematics/modules I post are free for all to use - but a credit is always polite!
Don't stagnate, mutate to create!
User avatar
Posts: 1621
Joined: Fri Oct 22, 2010 12:46 am
Location: Yorkshire, UK


Return to DSP

Who is online

Users browsing this forum: No registered users and 3 guests