Indicating what process are you using, and how do you access the prot corretcly for example: I will make some tests to see what quality may I obtain without help, even for just one note!

I will make maybe a tracker-based system, like Midi or NSF, that would be easier than just read the file, isn't it?

EDIT/ I saw -2 to my precdent post, but have you really heard what quality have you got? I don't want  to blame the lector, but this is freaky: i tested with the famous megaman II tracki, but i dind't could recgnize it with the interferences and the sharp noise...
If you want, i'll post a record direclty from my G35+ to the computer micro with an aux wire...
anyway, this is a good work, but i think that we could obtain something that would be better.

(Bon... j'ai compris, j'argumente...)

EDIT.2: Here a record. THink there is noise reductor on my sound card, so the sound is just a bit (a bit, nah? ) crispy... This is a remix from said megaman II track

I just listened to it, but its really fast
EDIT:It's MM2 Wily 1 and MM9 Wily 1 theme

Very cool project
I'm kinda jealous that you can control the signal quite good, in comparison with my version on nspire lua :p (that means my sound quality is much worse)

Can you say how you make .wav file for this add-in ? Because, i want to make .wav, it works but when i listen my songs on my calc, they are very slows.

What are the parameter to convert my files ?
8 bits ?
Kbs ?
mono ?

Thanks, i will try today

PS : it worsk very well but sounds is very down. (i don't hear it).

Yes, is that, the sound is very low. The adapter is properly connected to the calculator and to the headphone. Is the voltage the origin of that ?

Yes, is that, the sound is very low. The adapter is properly connected to the calculator and to the headphone. Is the voltage the origin of that ?

The analog features of COM port seems to be odd. When I tried to fully modulate the signal, the sound quality was very bad. Then I tried to use only half of the amplitude range - the low part sounded very well, I would call it "high quality", but it was very quiet. When I attached it to the amplifier, the quality was very similar to receiving long-distance FM transmitter.
The high part has lower quality, but it is much louder.
But this all behaves on my calculator with my headphones (it has 60 Ohm - measured DC).
So you can try another headphones and please also try the "High quality". This is audible, but only in quiet room.

EDIT Ok it works, but is it normal that FA-124 won't accept any file larger than 400 KB or so? I get a Memory Full Error otherwise

I tried only ~ 200KB file and I was not able to copy it from SD card to internal flash (with 1.1 MB free) until I optimized the storage.
It may help you too:-)

Does this play mp3's?