%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\version "2.19.83"
%{ From
http://lilypond.org/doc/v2.19/Documentation/notation/controlling-midi-dynamics.fr.html
midiMinimumVolume + (midiMaximumVolume - midiMinimumVolume) * fraction
These are the volume coefficients ('fraction' above) applied to each dynamic.
%}
#(define (my-dynamic-absolute-volume-function dynamic-name)
(assoc-get dynamic-name
'(
; Adjust these values to get what you would like.
; You can add other dynamics.
; If an dynamic name is not found, the default dynamic values are used.
("ff" . 0.95)
("pp" . 0.3)
)
(default-dynamic-absolute-volume dynamic-name)))
%{ These are the default equalizations applied to each MIDI instrument.
An equalization consists in (min . max) where min is the value to apply for
midiMinimumVolume and max for midiMaximumVolume.
Keep refering to the formula above!
%}
#(define (my-instrument-equalizer instrument-name)
(assoc-get instrument-name
'(
; Adjust these values to get what you would like.
; You can add other instrument names.
; If an instrument name is not found, the default equalizer is used.
("violin" . (0.1 . 0.4))
("cello" . (0.5 1.0))
)
(default-instrument-equalizer instrument-name)))
\midi {
\context {
\Score
instrumentEqualizer = #my-instrument-equalizer
dynamicAbsoluteVolumeFunction = #my-dynamic-absolute-volume-function
}
}
violin = \new Voice \relative { c'4\pp d e f g\ff a b c }
cello = \new Voice \relative { a,4\pp b c d e\ff f gis a }
\score {
<<
\new Staff \with { midiInstrument = "violin" } { \violin }
\new Staff \with { midiInstrument = "cello" } { \cello }
>>
\midi { }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
You can use an instrument equalizer and custom dynamic absolute volume values
at the same time.
Of course, instrument equalization can be achieved using
\set Staff.midiMinimumVolume = min \set Staff.maximumVolume = max …
but the power of an instrument equalizer is that you can put it in a separate
file and
\include it, as you say that you generally want to hear the cello louder and
the violin less loud.
By the way, I find that the example given on
http://lilypond.org/doc/v2.19/Documentation/notation/controlling-midi-dynamics.html#setting-midi-volume
<http://lilypond.org/doc/v2.19/Documentation/notation/controlling-midi-dynamics.html#setting-midi-volume>
in selected snippets at "Replacing default MIDI instrument equalization"
is overly complicated. Why define the alist empty to append to it later?
And why not just use assoc-get? It could be easily improved.
Best regards,
Jean Abou Samra
> Le 15 juil. 2019 à 18:26, David Sumbler <da...@aeolia.co.uk> a écrit :
>
> 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
>> <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
>>> <mailto: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 <mailto:lilypond-user@gnu.org>
>>> https://lists.gnu.org/mailman/listinfo/lilypond-user
>>
>
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