[LAU] Voice-to-drums in general and the Trigger LADSPA in particular

Fons Adriaensen fons at linuxaudio.org
Fri Sep 23 08:54:44 UTC 2011

On Fri, Sep 23, 2011 at 09:39:56AM +0200, Lorenzo Sutton wrote:

>> - (optional) some pre-filtering to make the trigger
>>    more reliable,
>> - the trigger itself,
>> - a delay on the trigger,
> I don't quite get what the delay is needed for. To sync with the  
> envelope follower?

To give the envelope follower (or other feature extraction
algorithm) the time to produce a reliable value. This takes
finite time, and with sounds that have a clear onset (as
required for good trigger timing) you can't use the signal
before the trigger point.



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