Hi All, OK, here a link to my recording of the EWI midi data along with the audio output using the EWI5000 own builtin synth. There is also a screen shot showing the breath data.
https://drive.google.com/folderview?id=0Bw4x97avTsP-fnpENUNfNGNBSEIxUUk2bmpGSE0xLTBtSFZhcnNCT0ROd3hneF9Ybklfczg&usp=sharing The small gaps in the breath data are where I was tonguing at the start of some notes. I also play with a folk style and use quite a lot of ornamentation. The challenge is to if any one can get this to play well using fluidsynth. Thanks Louis On Sun, May 3, 2015 at 10:23 AM, Louis B. <louisjbar...@googlemail.com> wrote: > Hi, jcc, > > Here are my replies. Sound + midi recording to follow. > > jjc> Technically 'vibrato' is a pitch modulation and 'tremolo' is an > amplitude modulation. What are you talking about ? > > I am talking about the way I play the flute and the sound produced when I > don't play a steady note. > > jjc> 2.a) Do you mean that this "modulation" is blended in the sound > signal sample ? > > Yes, I meant that. The problem with this "modulation" in the sound signal > sample is that that the breath data steam includes it own natural > modulation/vibrato following how the player plays. It may be better to > work with sound fonts that use fluidsynth for the modulation as it is > possible to override this with the breath modulation. > > jjc> Here the list of default modulators to change the amplitude of a > sounding note in real time (called "Initial Attenuation" in SoudFont terms) > . > > What is needed is "Continual Attenuation" rather than "Initial > Attenuation". > > I don't think that the 'note on' velocity is used so much in a breath > capable synth instead the amplitude is set from the breath stream. > > jjc> When MIDI noteOn event occurs ? When you start blowing ? > > Yes, and also when you play a different note. > > jjc> When MIDI noteOff event occurs ? When you stop blowing ? > > Yes, and also when you play a different note. > > There is a subtlety here, if you change notes while blowing steadily the > new 'note on' comes just before the old 'note off'. When this happens maybe > you should skip the attack part of the new note and go straight into the > sustain part of the next note. Lets called these 'linked notes', more about > this in following emails. > > jjc> If possible, MIDI file format 2 will be appeciated as well the kind > of synthesizer used when recording audio. > > I use the built in sound generator of the EWI5000. There are not many > breath capable synths out there. > > > It would be great if we could tweak fluidsynth to make it a breath capable > synth but there are lots of challenges. > > Louis > > > On 1 May 2015 at 18:21 "CERESA Jean-Jacques ENAC/ENAC" wrote: > > > Hi, Louis > > > > > Thanks for you response about this subject. > > I need some precision from your last post and to ovoid overload on > fluidsynth maillist i prefer using direct mailing. > > > > >However playing a note on the EWI it always sends a midi note on with a > velocity just above zero. > > >This is because when you start blowing the sound level starts from zero > then builds up. > > When MIDI noteOn event occurs ? When you start blowing ? > > When MIDI noteOff event occurs ? When you stop blowing ? > > > > >but this is a large sound fount and has the vibrato built into the > sound loops > > 1) Often musician use 'vibrato' word talking about amplitude modulation. > > Technically 'vibrato' is a pitch modulation and 'tremolo' is an > amplitude modulation. What are you talking about ? > > > > 2.a) Do you mean that this "modulation" is blended in the sound signal > sample ?, or > > 2.b) Do you mean that it is described as a modulator with a MIDI CC on > input. ?. > > In case 2.a, while playing it is impossible "to say" to the synthesizer > engine to change anything during synthesis. > > In case 2.b, while playing it alway possible "to say" to the synthesizer > engine to change any parameters via MIDI CC and modulators. > > Soundfont (2.01) have a lot of default modulator. For example Mod wheel > (MIDI CC 1) to Vibrato LFO pitch depth. > > It is just an example describing a MIDI CC that change the pitch depth > of Vibrato LFO. > > Notice that 'Vibrato LFO' in soudfont 2.01 synthesizer model is an LFO > that change the pitch of sound. > > > > > What is needed is a custom sound font that uses a breath controller to > control the volume. There is natural vibrato in the MIDI breath data. > > > So what would be great if we could somehow add a magic flag to > fluidsynth that overrides the global vibrato modulation used on many sound > fonts > > > and instead control that with the breath controller input. This would > save having to manually edit all the sound fonts to respond to the breath > controller. > > > > To control the amplitude of a note in real time you need a soundfont > with a modulators to do that. > > Fortunately, when any soundfont is loaded, a list of default modulators > is build inside the engine. You can use theses defaut modulators > > as far they are not changed by custom modulators having the same name in > the soundfont. > > > > Here the list of default modulators to change the amplitude of a > sounding note in real time (called "Initial Attenuation" in SoudFont terms) > . > > > > - MIDI Note-On Velocity to Initial Attenuation > > > > - Volume (MIDI CC 7) to initial attenuation > > > > - Expression (MIDI CC 11) to initial attenuation > > > > > > > > As you see there is no default modulator with breath controler (CC 2 ) > on its input. But when using fluidsynth application you can "say" it to > transform > > > > any MIDI message CC 2 in a MIDI CC 11 using the router command line > interface. > > > > Using fluidsynth application, you need to enter the following command in > the shell to instruct the router. > > > > # Remove current rules (to remove any default rules): > > router_clear > > > > # Set the rule to transform CC breath (CC 02) to CC Expression (CC 11) > > > > router_begin > > > > cc > > > > router_par1 02 02 0 11 > > > > router_end > > > > # Set the rules to pass through other messages types (note, prog, pbend, > cpress, kpress) > > > > router_begin note > > > > router_end > > > > router_begin prog > > > > router_end > > > > router_begin pbend > > > > router_end > > > > router_begin cpress > > > > router_end > > > > router_begin kpress > > > > router_end > > > > > > > > >I will post over the weekend a MIDI recording (with matching audio). > > > > If possible, MIDI file format 2 will be appeciated as well the kind of > synthesizer used when recording audio. > > > > > > > > Thanks a lot for your contribution. > > > > > > > > jjc > > > > > > > > > > > > > >
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