Re: [fluid-dev] Questions about fluidsynth API

[Luc Hondareyte]

Le 07/02/2020 à 09:29, Benoit Tachet via fluid-dev a écrit :
> Hello again,
>
> After a quick check, I am now sure that the problem comes from the 
> synths (I have tried with Timidity and FluidSynth), because I have the 
> same problem on a Windows 64-bits computer.
>
> Benoit
Hello,

As I understand it, you've got the same results with your custom MIDI 
keyboard and Fluidsynth (or Timidity), so it's a synth problem... Umh, 
well... can you test your application with a standard MIDI Keyboard?

Luc

> *De :* Benoit Tachet
> *Envoyé :* vendredi 7 février 2020 08:30
> *À :* 'George Poulson' <address@hidden>; 
> 'address@hidden' <address@hidden>
> *Objet :* RE: [fluid-dev] Questions about fluidsynth API
>
> Hello George,
>
> For the hardware, here are some more explanations :
>
> The Keyboard I’m using is a custom one, made from wood and plexiglass, 
> being 1 meter width and 1.1 meter depth per octave. To check if a key 
> is pressed or not, I use some silver tissue, linked to an Arduino 
> board. This board, that I will call “Slave” in the next paragraphs, is 
> linked to another Arduino board,  a “master” board.
>
> At first, I played sounds directly thanks to a MIDI board directly 
> connected to the master, and everything worked perfectly, so I don’t 
> think the problem comes from the keyboard.
>
> Since I started using fluidsynth, everything works well when I press 
> one key at a time, but when I press two of them, only one sound is 
> played… That’s why I think it may come, either from Fluidsynth itself, 
> either from FluidSynth’s API.
>
> Benoit
>
> *De :* George Poulson <address@hidden 
> <mailto:address@hidden>>
> *Envoyé :* jeudi 6 février 2020 16:16
> *À :* FluidSynth mailing list <address@hidden 
> <mailto:address@hidden>>
> *Cc :* Benoit Tachet <address@hidden <mailto:address@hidden>>
> *Objet :* Re: [fluid-dev] Questions about fluidsynth API
>
> Can you explain some more about what hardware you are using?
>
> If you have a midi keyboard connected to a Raspberry Pi and are 
> running fluidsynth then you should be able to hear the audio 
> corresponding to pressing keys on the keyboard.
>
> Do you have this working already? If not then can you use fluidsynth 
> to play a midi file? Does this sound OK?
>
> If you can play individual notes on the keyboard but cannot play 
> chords (multiple notes at the same time) then could this be a 
> limitation of the keyboard you are using?
>
> None of this is really related to the fluidsynth API so you should 
> really have started a new post, but with some more information there 
> should be someone here to help you.
>
> George.
>
> On Thu, 6 Feb 2020, 15:03 Benoit Tachet via fluid-dev, 
> <address@hidden <mailto:address@hidden>> wrote:
>
>     Hello, fluid-dev team,
>
>     I’d like to use your API system to run a MIDI-like software (to
>     run a homemade giant piano).
>
>     At first, I used a MIDI board directly linked to an Arduino, but
>     now, I want to use a raspberry pi board to add some new features,
>     and I’m facing a huge problem : if I press 2 keys almost
>     simultaneously, there is only one of them which is played (all
>     sounds are supposed to out on MIDI channel 0). I have tried to
>     reduce synth gain, as it seemed to change something on it,
>     according to what I understood on the reference, but it does not
>     seems to change anything…
>
>     Is there any way to change this ? Thank you very much.
>
>     Benoit Tachet
>
>     PS : Excuse me if there is any grammar mistakes, I’m not English
>     native…
>
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