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From: Rudolf Sykora <rudolf.sykora@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: [9fans] sound, graphics, tuner
Date: Sat, 15 Jan 2011 11:04:54 +0100	[thread overview]
Message-ID: <AANLkTinu5x=4XCeg_TLSk19qrNkEL2ZpvZa8u3C_O60p@mail.gmail.com> (raw)

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



             reply	other threads:[~2011-01-15 10:04 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-15 10:04 Rudolf Sykora [this message]
2011-01-15 10:38 ` lucio
2011-01-15 12:05   ` Gorka Guardiola
2011-01-15 18:50     ` Rudolf Sykora
2011-01-15 19:00       ` John Floren
2011-01-15 20:30       ` Tristan Plumb
2011-01-16  3:52         ` Venkatesh Srinivas
2011-01-16  4:00           ` Jacob Todd
2011-01-16 19:20           ` [9fans] 9doom Lyndon Nerenberg (VE6BBM/VE7TFX)
2011-01-16 19:24             ` Jacob Todd
2011-01-16 19:27             ` John Floren
2011-01-16 20:29               ` Jacob Todd
2011-01-17  0:52                 ` Joel C. Salomon
2011-01-17  8:11                   ` James Tomaschke
2011-01-17 13:30           ` [9fans] sound, graphics, tuner Pavel Klinkovsky
2011-01-17 14:52             ` Jacob Todd
2011-01-17 16:53               ` Federico G. Benavento

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