Excellent work! You, too, Rolf.
]]>Excellent work! You, too, Rolf.
]]>It's mono but you cant really tell, the drum samples are tiny. 4bit sample player & sample osc & pwm synthesizer with filter... I'll be releasing the code at some point, once its working nice.
]]>I hope for something a ltitle more advanced then:
Currently, the code contains four drum sounds (kick, snare, hi-hat and cymbal). More sounds can be added easily. Each sound is 128 samples long with a depth of 8 bits. The samples are stored in separate arrays. Thus, the present sketch is only 3228 bytes long.
But it does look cool!
Trash80's synth has some better drum samples, 4bit depth 22100Hz.
I've also messed around with 8bit samples at about 15KHz being played using the hardware pwm at 62.5KHz but they ate space very quickly.
Currently, the code contains four drum sounds (kick, snare, hi-hat and cymbal). More sounds can be added easily. Each sound is 128 samples long with a depth of 8 bits. The samples are stored in separate arrays. Thus, the present sketch is only 3228 bytes long.
But it does look cool!
]]>How come there isnt an any arduino drum samplers
/self serving suggestion
oh but there is!
]]>I use a r2r dac and run the interrupt at the proper rate to create pitch, which restricts it to monophonic and uses 4 pins for 4bit.
Lame restriction but the quality is quite nice for notes- pure 4bit oscillator- no aliasing, no lowpass filter to kill the high pitch tone generated by the pwm at the frequency of the sample rate.
Making good audio with the arduino isn't really possible unless you plan to use one of the timer interrupts and make it faster.
That touches on a related question I've been wondering about:
If timers and interrupts are used, could the Arduino be used to directly synthesize PWM oscillator waveforms?
Is this how some people are already doing it?
(To try and be clear, I'm not talking about putting samples through an A/D at 44kHz, I'm talking about directly toggling output pins at varying frequencies and duty cycles, using the 16MHz clock as the fundamental timing source; i.e. more similar to NES or C64 pulse wave generation.)
How many voices and what quality would be doable?
]]>
Mp3:
http://soundcloud.com/dkstr/mantra-test
Mantra is Pure Data based 8 step sequencer combined to Arduino based synth.
Sequencer has:
-One synth channel
-One gated channel of same synth
-Bass generator that gets the pitch from the synth
-3 Drum channels
-Arpeggio-like channel
-In addition one synth is routed to Ableton Live to create ambience
Synth is based on Auduino.
]]>Making good audio with the arduino isn't really possible unless you plan to use one of the timer interrupts and make it faster.
Yeah, I take it more as a learning about building stuff, but the demos I've heard have sounded pretty nice to me.
But now the bending with midi controls sounds the most interesting choice. Doing bending 'sequences' sounds pretty cool.
]]>No I mean I have a arduino in my dmg (pro mini)
I've been working on it for a few days. It's a sample oscillator and drum sample player. Using a 4bit r2r dac which sounds a bit better than using pwm. It's using some custom lsdj code thats not available at the moment. Heres a old clip from friday, the only thing gameboy is the pu1 synth.
MIND IS BLOWN!
]]>..arduino in my dmg...sample oscillator and drum sample player...custom lsdj code
Yikes, very cool! I can't wait to see/hear more.
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