On Fri, 2007-05-04 at 19:10 +0100, John Rigg wrote: > Probably a stupid question, but how do I reverse polarity in > Ardour2 mixer channel strip? There was a button in > 0.99 but I can't find the equivalent in Ardour2. No plugin needed. Click on the track name in the mixer strip and select "invert polarity". Sampo