Hello, Recently I came across a need to tune a musical instrument.
I tried to think how difficult it'd be to write a program which would 1) read the signal from a microphone, 2) process it, 3) show the tone played and its deviation, possibly graphically. (In linux, lingot is the example.) I have a good notion about the middle task (2). So far I've never tried to read anything from a soundcard, nor to create any graphics in plan9. First, I am aware that in linux the soundsystem is controlled by something called ALSA or OSS. It's always seemed to me a complicated thing (I may be well wrong). Second, in linux there are many graphical libraries like GTK, Qt, wxWidgets, Tk, others. Is there anything in plan9 that could be simple to grasp and create an analog gauge with it? Can anybody comment this and/or possibly point me at some good documents? Thanks Ruda
