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Date:	Fri, 12 Feb 2016 16:47:48 -0500
Message-Id:	<201602122147.u1CLlmqo014914@envy.delorie.com>
From:	DJ Delorie <dj AT delorie DOT com>
To:	geda-user AT delorie DOT com
In-reply-to:	<56BE4EF3.4040209@plastitar.com> (phil@plastitar.com)
Subject:	Re: [geda-user] Stepper Driver Question
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> The drive for that chip is out of the audio range.

The trace he posted says 10KHz, that's within *my* hearing range.  The
question is, is there something that's turning that into mechanical
noise?  Are there other variances in the PWM signal that might be
audible?

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