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Re: MIDI volume goes beyond maximum after staff change

From: Phil Holmes
Subject: Re: MIDI volume goes beyond maximum after staff change
Date: Tue, 1 Nov 2011 15:46:47 -0000

"Pavel Roskin" <address@hidden> wrote in message news:address@hidden

I guess it would be better to start a new thread for a new bug.  As
suggested the in thread "MIDI dynamics doesn't apply to multi-voice
measures", I converted the score to explicit voices.  I used hidden
dynamic in the beginning of each voice so that the MIDI loudness would
be controlled by midiMaximumVolume.

However, I encountered another bug after the conversion.  In two places,
the voice is moved temporarily to the lower staff to keep the beams
connected, as in the original score. In those paces, the loudness
exceeds the limit. The first occurrence is after the word "wonder", or
just after 1 minute 25 seconds from the beginning.

The attached file uses midiMaximumVolume 0.5, which should be
enough to hear the problem.  You can set midiMaximumVolume to a lower
value to make the problem even more obvious, just be sure not to crank
up the volume too high while listening.

I'm ready to open a ticket for the bug.  But perhaps one ticket is
needed for the whole class of such bugs.  The MIDI generator should
always adhere to the limits and try hard to find what the current
loudness should be rather than fall back to the default loudness in
case of any difficulty.

Please don't open a bug report yourself - that's the job of the bug squad. Please could you create a lilypond source file that demonstrates the problem in the form of a "tiny" example: http://lilypond.org/website/tiny-examples.html

Phil Holmes
Bug Squad

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