Stereo Tool

Version 3.20 is now available.

Changes:
Stand-alone version:
- Added ASIO support for lower latency (10 ms microphone-to-speaker without processing). ASIO is a trademark of Steinberg Media Technologies GmbH.

All versions:
- Added low latency processing mode (200 ms latency with all processing enabled).
- Improved sound quality for bass sounds (multiband compressor, stereo image filter).
- FM pilot tone and RDS signal volume can be adjusted.
- Bug fix: Linked sliders now remain linked properly.

Thank you for these new function, you've added! That settings made possible for me to enhanche the rds signal volume, and now the rds projects faster on tuners, that are on more distance from my transmitter. Great work!

Regards, half

Hi halfdead,

that's probably caused by a phase shift in the RDS signal (on my test setup I can receive the RDS signal until the sound itself gets bad). Such a phase shift can be caused by the sound card.

I'm waiting for some measurement results (maybe I should start looking for them myself) to find out what kind of shifts occur in sound cards, so I can offer a correction for it in Stereo Tool. (If the phase shifts are small, just generating the stereo and RDS signals with a simple delay might suffice. If larger shifts are present, I might need to use some smarter filters.) The fact that RDS functions at all probably indicates that the shifts are not very large.