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- Path: sparky!uunet!olivea!spool.mu.edu!agate!usenet.ins.cwru.edu!neoucom.edu!wtm
- From: wtm@uhura.neoucom.edu (Bill Mayhew)
- Newsgroups: sci.electronics
- Subject: Re: microphone circuit
- Message-ID: <1993Jan05.142425.25633@uhura.neoucom.edu>
- Date: 5 Jan 93 14:24:25 GMT
- References: <1i9clnINN4kj@cs.tut.fi>
- Organization: Northeastern Ohio Universities College of Medicine
- Lines: 19
-
- The last time I watched a piano tuner in action, he used a strobe
- disc to rough in the tuning. The disc was in in a box with a neon
- bulb apparently connected to the output of an amplifier. The speed
- of the disc was also regulated, as the box had a sharp/flat knob,
- which the turner adjusted slightly sharp, a qualitative adjustment,
- for the paino's upper registers. He adjusted A 440 with a tuning
- fork first, then worked up and down form there. Final voicing was
- done entirely by ear.
-
- Given the the complex waveforms that most insturments genreate, the
- stroboscopic disc is a really handy means for checking frequency.
- I'd imagine that one could be more hip by replacing the neon bulb
- (it was a lot bigger than an NE-2H) with an LED array.
-
-
- --
- Bill Mayhew NEOUCOM Computer Services Department
- Rootstown, OH 44272-9995 USA phone: 216-325-2511
- wtm@uhura.neoucom.edu (140.220.1.1) 146.580: N8WED
-