[gmpi] Re: Reqs 3.9. Time - opening arguments.1

  • From: "Koen Tanghe" <koen@xxxxxxxxxxxxxxxxxxx>
  • To: <gmpi@xxxxxxxxxxxxx>
  • Date: Tue, 10 Feb 2004 21:50:45 +0100

On Tuesday, February 10, 2004 6:36 PM [GMT+1=CET],
Michael Stauffer <xxxmichael@xxxxxxxxxxxxxxxxxxxxx> wrote:

>> This has been discussed.  Do you envision this running only while the
>> transport runs or all the time?
> Great, sorry I missed it. I envision this running only while the
> transport runs. Although someone else might need it all the time? Not
> sure.

I also think it is mostly needed while the transport is running.

OTOH, I can also imagine a plugin that allows you to set the tempo of a song
at a certain point by drumming/singing/playing something into an audio input
while the transport has stopped. Use case:
- user opens his GMPI host
- he/she sets up a tempo tracking plugin in his/her project on an audio
- user manually plays a short drum loop to set the initial tempo (you can
compare this with "tempo tapping")
- user starts recording
Of course, one could think: just use the tempo slider in the host.
Or also: why do you need this if the plugin follows the tempo anyway...
Well, usually, tempo trackers need a couple of seconds to develop a stable
tempo. Streaming audio analysis usually needs to take into account some past
material before it can say something useful about the now, and this inherent
causality causes some latency...


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