Hi Jean That's great - I certainly now can get a greater range of dynamic than before. Thank you very much.
But I find that altering values in 'my-instrument-equalizer-alist' has no effect at all. How can I adjust the relative volumes of 2 different instruments - say, 'violin' and 'cello'. (I find that in the fluidr3_gm sound font, the cello is far quieter than the other stringed instruments.) David On Mon, 2019-07-15 at 17:41 +0200, Jean ABOU SAMRA wrote: > Hi David, > Your problem is not with the instrument, it's with the dynamics > themselves. > The algorithm that affects a volume to a note does a scale between > midiMinimumVolume and midiMaximumVolume that includes all dynamics. > Mathematically, you can think: > volume = midiMinimumVolume + (midiMaximumVolume - > midiMinimumVolume)*dynamic > > Let me try a diagram: > > 0 | pppp ppp pp p mp mf f ff fff > ffff fffff sf | 1 > no sound midiMinimumVolume > midiMaximumVolume maximum volume possible > > > Here you set midiMinimumVolume to 0 or almost and midiMaximumVolume > to 1, so if there is not enough difference for you, you need to > influence the scale between the two in addition to minimum and > maximum volume. > > Taking a look at > http://lilypond.org/doc/v2.19/Documentation/internals/dynamic_005fperformer > suggests to set the dynamicAbsoluteVolumeFunction property. You will > find its default in scm/midi.scm: > > ;; define factor of total volume per dynamic marking(define-session- > public absolute-volume-alist '())(set! absolute-volume-alist > (append '( ("sf" . 1.00) ("fffff" . 0.95) > ("ffff" . 0.92) ("fff" . 0.85) ("ff" . 0.80) > ("f" . 0.75) ("mf" . 0.68) ("mp" . 0.61) > ("p" . 0.55) ("pp" . 0.49) ("ppp" . 0.42) > ("pppp" . 0.34) ("ppppp" . 0.25) ) absolute- > volume-alist)) > (define-public (default-dynamic-absolute-volume s) (assoc-get s > absolute-volume-alist)) > so now you can modify it, for example: > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > \version "2.19.83" > > > #(define (my-dynamic-absolute-volume-function dynamic-name) > (assoc-get dynamic-name > '( > ("sf" . 1.00) > ("fffff" . 0.95) > ("ffff" . 0.92) > ("fff" . 0.85) > ("ff" . 0.95) ;; was 0.80 > ("f" . 0.75) > ("mf" . 0.68) > ("mp" . 0.61) > ("p" . 0.55) > ("pp" . 0.10) ;; was 0.49 > ("ppp" . 0.42) > ("pppp" . 0.34) > ("ppppp" . 0.25) > ))) > > > \score { > \new Staff \with { midiInstrument = "trumpet" } { > \set Score.midiMinimumVolume = 0.0 > \set Score.midiMaximumVolume = 1.0 > \set Score.dynamicAbsoluteVolumeFunction = #my-dynamic-absolute- > volume-function > a'8\pp b' cis'' d'' e''-.\ff d''-. cis''-. b'-. a' > } > \midi { } > \layout { } > } > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > You understand that default 'piano' is not so piano because we have > to go to ppppp. > By adjusting the values in that associative list, you can play with > dynamics and get the exact contrast you would like. > Hope that helps.Kind regards,Jean Abou Samra. > > Le 15 juil. 2019 à 16:16, David Sumbler <da...@aeolia.co.uk> a > > écrit : > > > > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > > \version "2.19.82" > > > > #(define my-instrument-equalizer-alist '()) > > > > #(set! my-instrument-equalizer-alist > > (append > > '( > > ("trumpet" . (0.01 . 0.99))) > > my-instrument-equalizer-alist)) > > > > #(define (my-instrument-equalizer s) > > (let ((entry (assoc s my-instrument-equalizer-alist))) > > (if entry > > (cdr entry)))) > > > > \score { > > \new Staff \with { midiInstrument = "trumpet" } { > > % \set Score.midiMaximumVolume = #1 > > % \set Score.midiMinimumVolume = #0 > > \set Score.instrumentEqualizer = #my-instrument-equalizer > > a'8\pp b' cis'' d'' e''-.\ff d''-. cis''-. b'-. a' > > } > > \midi { } > > } > > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > > > > Can somebody explain how I can control the absolute minimum and > > maximum > > values of individual instruments in midi? > > > > In the above snippet, I expect to find the first bar almost > > inaudible > > and the second bar extremely loud. However, I find that the > > difference > > between the pp section and the ff is quite limited. If I reduce > > the > > supposed maximum volume of the trumpet to, say, 0.5, then the pp > > will > > indeed be very quiet, but when I restore the second parameter to > > 0.99 > > as here, then the pp passage is much louder than previously. > > > > If I uncomment the Score.midiMaximumVolume line and the following > > one, > > it makes little difference. The Internals Reference states that > > valid > > values for these 2 parameters are numbers between 0 and 1. > > However, if > > I set midiMaximumVolume to 2, I find that the pp and the ff > > sections > > have the same volume as each other. Further increases in > > midiMaximumVolume do not seem to make any difference. > > > > In every case, the total dynamic range is considerably less than I > > would like. How can I extend the dynamic range beyond the limited > > range I can currently get? > > > > David > > > > > > _______________________________________________ > > lilypond-user mailing list > > lilypond-user@gnu.org > > https://lists.gnu.org/mailman/listinfo/lilypond-user
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