[linux-audio-user] Re: [Alsamodular-user] [ANN] ams-1.8.6 - Barber Poles

Mark Knecht mknecht at controlnet.com
Fri Jul 16 10:35:49 EDT 2004

Matthias Nagorni wrote:
> Hello, 
> recently I discovered cool Barber Pole modules on Don Buchla's page
> (www.buchla.com). I remembered that the manual of my Doepfer system 
> mentioned something about these effects, so I looked it up (you can 
> also find it online at www.doepfer.de/a191.htm) and started to implement 
> a special LFO for generation of Shepard tones and other spiral sound effects. 
> Here is the result: ams-1.8.6 with several barberpole patches in the demos 
> folder. Pitch- and ModWheel are bound in most examples. Try to set Gain Saw 
> to 1.334 in the Barber Pole module of example_barberpole.ams. It might 
> also be interesting to further decrease the LFO frequency.
> Note: You may have to adjust the mixer/PCM Out volumes when playing 
> the examples polyphonically. 
> Don't forget that AlsaModularSynth requires the MCP/VCO/REV plugins by 
> Fons Adriaensen. Efficiency and power of Fons' phaser is seen in 
> example_barberpole_phaser* where 8 of them are used in a single patch.
> Have a lot of fun !
> Matthias

Don Buchla is a guy with a lot of history. It was fun to go back and 
look at his old machines on this web site.

More information about the Linux-audio-user mailing list