Baggypants
Posts: 10
Joined: Tue May 08, 2012 10:46 pm

Re: Raspberry Pi based Synthesizer

Sat Aug 25, 2012 6:32 pm

Hurrah. I was a bit surprised at the latency because the stuff I've tried hasn't been that bad. Looking forward to when I can have a play.

rastapi
Posts: 11
Joined: Wed Jul 25, 2012 7:03 pm

Re: Raspberry Pi based Synthesizer

Sun Sep 09, 2012 9:23 pm

I've joined in...

Amsynth on stock fresh debian. Same crackling niceness when cpu is maxed out.

Haven't been able to get fluidsynth working..though I'm staring into the abyss with this, not really understanding any of it (I'm a ethnographic researcher interested in music business...). Thinking about other possibilities through collective work on this, as well as networking, etc...the mind wandering...

Fun learning though.

dhartley.net

NathanSmutz
Posts: 1
Joined: Thu Mar 13, 2014 6:54 pm

Re: Raspberry Pi based Synthesizer

Sat Mar 15, 2014 9:59 pm

I'll put it this way. There were pretty neat digital synthesizers (physical modeling, analog modeling) in the 90's along with some soft synths. Heck, FM dates back past '83.
I'm not sure how 2012 ARM compares to 90's intel and I'm not accounting for custom DSP; but,
Wasn't 450Mhz and 64 megs of ram state of the art back then? (http://www.intel.com/pressroom/archive/ ... 082498.htm)

I suspect we can do some nice stuff.

basj
Posts: 14
Joined: Tue Mar 03, 2015 1:37 pm

Re: Raspberry Pi based Synthesizer

Fri May 22, 2015 12:45 pm

As I wanted to have a "Rhodes" piano with a Pi, I tried myself SoundFonts on a RaspberryPi a few months ago (with fluidsynth, etc.), and came to the conclusion that it is impossible to have decent polyphony (more than 20 voices for example).

Then I started coding my own sampler, and finally ... it works well: http://www.samplerbox.org
Source code: https://github.com/josephernest/SamplerBox

https://www.youtube.com/watch?v=yz7GZ8YOjTw

Looking for testers!

omenie
Posts: 94
Joined: Fri Dec 09, 2011 5:09 pm
Contact: Website

Re: Raspberry Pi based Synthesizer

Fri May 22, 2015 6:52 pm

Rolling your own is absolutely the only way. The last time I measured I got some 50 notes of polyphony, 2 layers per note (e.g piano plus strings) on a Pi model A with my sample replay engine.

basj
Posts: 14
Joined: Tue Mar 03, 2015 1:37 pm

Re: Raspberry Pi based Synthesizer

Sat May 23, 2015 7:15 pm

True!
Is your code open source too @omenie ?

If you have time to look at my link, feedback welcome on the code!

omenie
Posts: 94
Joined: Fri Dec 09, 2011 5:09 pm
Contact: Website

Re: Raspberry Pi based Synthesizer

Sun May 24, 2015 3:49 pm

It's neither open-sourced nor ready to release. I'd love to take a look at what you've done but I fear I won't ever have the time!! But if you are getting 20+ notes of polyphony out of a Pi 1 you are getting something right, it is challenging to squeeze that level of performance out of these things. I'm sure Pi 2 makes it all much easier but I haven't got one yet, and also I want to finish this for the Pi 1 so that all those 3M+ devices out there get a chance to be a music production system. State of play as of today - http://raspberrypisynthesizer.blogspot. ... rvice.html - and a 'many synths running at the same time to play a tune' demo - http://youtu.be/THr2aKJbVVU

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