Search found 5 matches
- Mon May 02, 2022 6:51 pm
- Forum: Pro Audio Design
- Topic: The Studer "90°" Dome Filter Stereo to Mono Quadrature Summer
- Replies: 36
- Views: 17823
Re: The Studer "90° Filter" Stereo to Mono Summer/Recorrelator
IIR, the QS chips may have been used to create the matrix, which was slightly different in the Dolby matrix vs stock QS. The second version of the Dolby Cat. 150 decoder card used the Tate/Exar chip set to hype adjacent channel separation, which would have been only 3dB without steering logic. These...
- Mon May 02, 2022 1:04 am
- Forum: Pro Audio Design
- Topic: The Studer "90°" Dome Filter Stereo to Mono Quadrature Summer
- Replies: 36
- Views: 17823
Re: The Studer "90° Filter" Stereo to Mono Summer/Recorrelator
Just found this thread. The wide-band phase shift network show up in several other interesting applications. In the original Dolby Stereo matrix 4:2:4 surround system, the goal was to produce an LtRt track where L+R (-3dB) is Center, L-R (-3dB) is surround, there is a problem panning from Center to ...
- Wed Apr 27, 2022 11:52 am
- Forum: Test, Measurement and Repair
- Topic: Which Audio Analyser?
- Replies: 27
- Views: 67370
Re: Which Audio Analyser?
There's an REW version for Linux.
- Wed Apr 27, 2022 11:51 am
- Forum: Test, Measurement and Repair
- Topic: Which Audio Analyser?
- Replies: 27
- Views: 67370
Re: Which Audio Analyser?
I have played with Linux, but not for audio testing. In general I find it to be too much trouble without a lot of benefit, so moved on. In my work I deal with Win machines, tons of them, Win10, 7 and XP (yeah, Xp...which is now eXtra Painful). One facility had some Linux machines, but users had so m...
- Wed Apr 27, 2022 3:50 am
- Forum: Test, Measurement and Repair
- Topic: Which Audio Analyser?
- Replies: 27
- Views: 67370
Re: Which Audio Analyser?
I use both the Quantassylum QA401 with the QA software, and REW. For the interface, I have a Tascam US2X2HR and a Motu 4Pre, but I also use the 3rd party driver for the QA401, and use it with REW. Both the QA software and REW have their points. For scripted, automated testing, QA wins because REW ca...