Hi Ceresa, Thanks for the reply, it helps a lot. We will try to follow the steps that you mentioned. It seems that we have misunderstood the pipeline and each component's relationship.
>Interresting. Is it an optical to MIDI tranducers dedicated to plugged/bowed instruments ? Yes, we made a wireless optical pickup for plugged/bowed instruments. We have a website, but not much information on it. https://thehcmusic.com/licap.html If you are interested in what we are making, it's a great pleasure to make friends with and keep in touch! Really grateful for your reply Best regards, Hak. Ceresa Jean-Jacques <jean-jacques.cer...@orange.fr> 於 2020年5月21日 週四 下午9:38寫道： > Hi, > > I forgot to mention a good example in the Wiki: > http://www.fluidsynth.org/api/example_8c-example.html#a3 > > jjc > > > Message du 21/05/20 13:24 > > De : "Ceresa Jean-Jacques" <jean-jacques.cer...@orange.fr> > > A : "FluidSynth mailing list" <fluid-dev@nongnu.org> > > Copie à : > > Objet : Re: [fluid-dev] Some simple questions of Fluidsynth about > implying samplers > > > > > > > Hello Hak, > > > > > > After reading the simple_sample.cpp provided. Here some tips. > > > > > > 1)The best for you should be to use the fluidsynth console application. > It allows to test anything without writting any line of code. > > > 2.1.1) new_fluid_audio_driver() must be called after new_fluid_synth() > but BEFORE any noteon/noteoff, otherwise we cannot hear something. > > > 2.1.2) similarly fluid_synth_sfload() must be called before any > noteon/noteoff. > > > 2.2) always check returned status after calling > (new_fluid_settings(),new_fluid_synth(), new_fluid_audio(), > fluid_synth_sfload()). > > > > > > 3)In your use case, as far you intend to work with a SoundFont, things > are simpler. > > > 3.1)The note played by fluid_synth_noteon(synth, 0 //MIDI Channel 0, 60 > //C4, 127//maximum velocity) will > > > use information coming from the soundfont (i.e > {Preset{Instrument{sample}}}). > > > Consequently, we don't need to provide an external sample (i.e calling > readDataFromWav() is useless). > > > Also as far you need a simple demo (i.e playing one note) , you don't > need of internal sequencer > > > (i.e calling fluid_sequencer_register() is useless). > > > > > > 3.2) However, before fluid_synth_noteon(), we just need to tell > fluidsynth that channel 0 > > > must bet set to the right MIDI program/bank number corresponding to the > intended preset number. > > > For example assuming the intended soundfont preset is x in bank y. This > leads to: > > > > > > /* call new_fluid_settings(),new_fluid_synth(), new_fluid_audio(), > fluid_synth_sfload() */ > > > > > > /* Set program number x to MIDI channel 0 */ > > > fluid_synth_prog_change(synth, 0 , x); > > > > > > /* Set bank number y to MIDI channel 0 */ > > > fluid_bank_select(synth, 0, y); > > > > > > /* play note A4 on MIDI channel 0 at full velocity during 2 second */ > > > fluid_synth_noteon(synth,0, 69, 127); > > > > > > Sleep(2000); > > > fluid_synth_noteoff(synth,0, 69); > > > > > > /* call delete_fluid_audio_driver(a), delete_fluid_synth(synth), > delete_fluid_settings */ > > > > > > >We are making some optical pickups for string instruments(i.e. guitar, > violins) to do the midi stuf. > > > Interresting. Is it an optical to MIDI tranducers dedicated to > plugged/bowed instruments ? > > > Regards. > > > jjc > > > Message du 21/05/20 04:37 > > De : "Hak Lin" <ps2...@thehcmusic.com> > > A : fluid-dev@nongnu.org > > Copie à : > > Objet : [fluid-dev] Some simple questions of Fluidsynth about implying > samplers > > > > > Hi Fluidsynth developers, > I'm Hak from HcMusic, Taiwan. > We are making some optical pickups for string instruments(i.e. guitar, > violins) to do the midi stuff by installing our product, which is still in > the early stage. > > > > We want to make a simple sampler to demo our product. Something like > playing an A4 note that will make a dog bark sample. We found that > fluidsynth is a great project that helps us to work out with prototyping > demo. > > > > We had some problems with implying fluidsynth. We had tried functions like > new_fluid_sample(), readDataFromWav(), fluid_sample_set_sound_data(). After > that, we thought there should be sample sound when we ran the function > fluid_synth_noteon(). But not a noise came out. > > > > Is there some simple example of how to make a simple sampler that just > loads a wavefile and assign to a note, and makes a sound when notion(). > > > > Below's attachment is a simple code that we tried, there might be plenty > of mistaken function calls. Hope this indicates what we had done wrong. > > > > Thanks for your help. > > > > Best regards, > Hak. > > > > -- > > > 駭音科技有限公司 > > > > Founder/CEO > 林季伯 > ps2...@thehcmusic.com > +886 937626316 > > > > _______________________________________________ > fluid-dev mailing list > fluid-dev@nongnu.org > https://lists.nongnu.org/mailman/listinfo/fluid-dev > > > > > [ simple_sample.cpp (5.2 Ko) ] > > > > > _______________________________________________ > fluid-dev mailing list > fluid-dev@nongnu.org > https://lists.nongnu.org/mailman/listinfo/fluid-dev > > _______________________________________________ > fluid-dev mailing list > fluid-dev@nongnu.org > https://lists.nongnu.org/mailman/listinfo/fluid-dev > -- 駭音科技有限公司 Founder/CEO 林季伯 ps2...@thehcmusic.com +886 937626316
_______________________________________________ fluid-dev mailing list fluid-dev@nongnu.org https://lists.nongnu.org/mailman/listinfo/fluid-dev
