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You can overcome the RPi scarcity by migrating the code to the Teensy platform, which aside being cheaper and less power hungry than the 2,3,4 RPi, is a lot che
by squarefoot 4y ago
You can overcome the RPi scarcity by migrating the code to the Teensy platform, which aside being cheaper and less power hungry than the 2,3,4 RPi, is a lot cheaper and more easily available. Not an easy task since there's no Linux under the hood, but there are some excellent audio/midi libraries to help. They already built commercial-level synthesizers with it. By combining the breath sensor data with other pressure sensors you could end up with a very expressive instrument.
https://www.pjrc.com/teensy/index.html https://www.pjrc.com/teensy/index.html
https://www.pjrc.com/teensy/td_libs_Audio.html https://www.pjrc.com/teensy/td_libs_Audio.html
https://www.pjrc.com/teensy/td_libs_MIDI.html https://www.pjrc.com/teensy/td_libs_MIDI.html
https://www.youtube.com/watch?v=z2674LdYW5I https://www.youtube.com/watch?v=z2674LdYW5I
- ruleforty 4y agoBefore I’d do any of that would be vibrato. Without it it is a emotionless keyboard with a blowtube.
- postalrat 4y agoI don't know. Looks kinda easy to do vibrato through your blowtube https://www.youtube.com/watch?v=XtsZZKZcNC4 https://www.youtube.com/watch?v=XtsZZKZcNC4
- oriolid 4y agoIt's tremolo, vibrato would be oscillating pitch. Real woodwinds can do both. And yes, Fender got them the wrong way.
- code_runner 4y agoIf I had the knowledge/ability/skills to build an “emotionless keyboard with a blow tube” I’d be pretty damn happy. I don’t think a lack of vibrato diminishes what is going on here. Am open sourced wind synth made with a custom keyboard? Pretty sick IMO
- schappim 4y agoPretty challenging to do vibrato w/ momentary switches (discrete). For vibrato you need something like flexforce pressure sensors[1]. [1] https://www.tekscan.com/flexiforce-load-force-sensors-and-systems https://www.tekscan.com/flexiforce-load-force-sensors-and-sy...
- deleted 4y ago[deleted]
- skybrian 4y agoI like Teensy but it looks like their boards are either low-inventory or out of stock too: https://www.pjrc.com/store/teensy41.html https://www.pjrc.com/store/teensy41.html
- djmips 4y agoSays one SKU of 4.1 is available with limit of 5 per person And meanwhile the 4.0 is in stock in all SKUs with limit of 20! per person. https://www.pjrc.com/store/teensy40.html https://www.pjrc.com/store/teensy40.html This is pretty available. Especially compared to Pi
- squarefoot 4y agoAlso, Mouser expects 712 in stock within one week. https://www.mouser.com/ProductDetail/SparkFun/DEV-16771?qs=vmHwEFxEFR%2FenEKd%2FmWpTA%3D%3D https://www.mouser.com/ProductDetail/SparkFun/DEV-16771?qs=v...