[linux-audio-user] LADSPA Bandpass Plugin

Pete Harlow peter.harlow at thales-transportservices.com
Wed Jul 21 05:01:36 EDT 2004

Jeff Mashaw wrote:
> I have been trying to create a test CD to use for tuning a PA system in a 
> large auditorium, and I need a pink noise generator and a band pass filter to 
> create "test tones" at each one of the frequencies on the eq.  I am
> running 
> DeMuDi, and using ardour as a recorder.  I have a myriad of LADSPA plugins 
> including a pink noise generator, but I cannot find a simple bandpass filter 
> that allows me to dial in the precise frequency and the bandwidth.  I have 
> tried the TAP plugs, the CMT plugs, and the SWH plugs, and as far as I can 
> tell none have exactly what I need.  If anyone can help me or knows where to 
> find what I am looking for, that would be great.

The SOX tool has a bandpass and bandreject function, so presumably one 
could record a white noise sample and colour it up with SOX.



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