Re: uncertain about MIDI dynamic scaling

[Sean Reed]

Hi Mats,

I guess you can't please them all, can you.

Is there documentation somewhere on how the .midiMinimumVolume  
and .midiMaximum values specifically effect the velocity scaling? I  
expected it to scale #0.0=0 to #1.0=127, but I discovered that you  
can go above 1.0 and below 0.0 into negative values. For now I used a  
hit or miss approach to gradually tweak the scaling to my taste,  
opening the MIDI files in Digital Performer and looking at the values  
in the event lists.

Through experimenting I also discovered that the dynamic range in  
LilyPond is
\ppppp to \ffff.  The current downloadable PDF version of the manual  
still states this range as \ppp to \fff (with a typo as well, I  
think, since \fff is listed twice).

Best,
Sean


On 25.04.2006, at 00:01, Mats Bengtsson wrote:

> Usually, we have had complaints about that the
> dynamic range was too large, so the silent dynamics
> were inaudible. So, it may happen that the default
> range has been compressed compared to early versions
> of LilyPond.
>
>   /Mats
>
> Sean Reed wrote:
>
> > Hi,
> >
> > Is it possible that the scaling on the MIDI dynamics is off somehow?
> >
> > I found a few mentions of this in the archives but no specific   
> > discussions of this particular issue.
> >
> > I noticed today after not using MIDI output from LilyPond for  
> > several  versions (and months) that the differences in the volume  
> > between  dynamics don't seem as noticeable as I remembered them  
> > from earlier  versions.
> >
> > As a test, I rendered a MIDI file of this lily code:
> > {c8\ppp d\pp e\p f\mp g\mf a\f b\ff c\fff}
> >
> > and opened it in Digital Performer and looked at the events list.
> > The velocities in the events list are:
> > 53 - 62 - 69 - 77 - 85 - 94 - 100  - 107
> >
> > I would have expected them to be more like
> > 16 - 32 - 48 - 64 - 80 - 96 - 112 - 128
> >
> > Am I misunderstanding something?
> >
> > Thanks for any hints.
> >
> > Best,
> > Sean
> >
> >
> >
> > _______________________________________________
> > lilypond-user mailing list
> > address@hidden
> > http://lists.gnu.org/mailman/listinfo/lilypond-user
>
>
>
> --
> =============================================
>         Mats Bengtsson
>         Signal Processing
>         Signals, Sensors and Systems
>         Royal Institute of Technology
>         SE-100 44  STOCKHOLM
>         Sweden
>         Phone: (+46) 8 790 8463                         
>        Fax:   (+46) 8 790 7260
>         Email: address@hidden
>         WWW: http://www.s3.kth.se/~mabe
> =============================================