Bay Area Maker Faire 2017

Status
Not open for further replies.
PaulStoffregen

PaulStoffregen

Well-known member
I've been pretty quiet the last several days, putting together a demo to be shown at Maker Faire in San Mateo, California next week.

We finished building last night. Here's a quick video.


I've missed many threads on the forum over the last week or so. If there's anything really important needing my attention, please ping me or bump the thread and I'll take a look.
 
Lol, I always wondered what kind of long term effects those interactive toys had on toddler's.

Very nice:D
 
OMG, something like that would have been great for my son's Maker Faire project!

My son is part of a group that is creating suped-up modified PowerWheel vehicles (fun to see them peel out) to ride at MakerFaire. My son added a bunch of toy musical instruments hanging off the sides so that people could play music. I'll make sure and come by with him to show him this monstrosity (meant in a good way).
 
I will soon be traveling to San Mateo for Maker Faire. I'll have only limited internet access until Monday afternoon. Will try to check in here on the forum when I can, but odds are I'll miss many threads. If anything really important needs my attention, please ping me Monday, May 22nd.
 
Cool demo, although I couldn't figure out what the copper strip touch sensors controlled. Stopped by on sunday but didn't see you around.
Did you get a chance to see the Lighted Grand Piano?
 
Paul posted the build on twitter: https://dorkbotpdx.org/node/1274

This picture caught my attention:
audiosystemonly_small.png


Does anyone know how they were able to get signal into the waveforms using the audio design tool?
 
lownote said:
Does anyone know how they were able to get signal into the waveforms using the audio design tool?
Click to expand...

Two of the waveform objects have signal input. You can just drag them onto the canvas and connect whatever signal you like to their inputs. Easy peasy!

The frequency modulated sine wave has been in the library for years.

https://www.pjrc.com/teensy/gui/?info=AudioSynthWaveformSineModulated

Brand new is the PWM waveform. This is so new you need to get the audio lib from github. It'll be in the 1.37 release, coming in about 1 month.

https://www.pjrc.com/teensy/gui/?info=AudioSynthWaveformPWM

The input signal to the PWM object modulates the PWM waveform's duty cycle.

Later this year I'm planning to add more signal-modulated waveform synthesis. The FM sine is also going to be reworked to allow more modulation range. These algorithms can be quite difficult to get right and implement without using massive CPU time, since they recompute stuff 44100 times per second.
 
PaulStoffregen said:
Two of the waveform objects have signal input. You can just drag them onto the canvas and connect whatever signal you like to their inputs. Easy peasy!

The frequency modulated sine wave has been in the library for years.

https://www.pjrc.com/teensy/gui/?info=AudioSynthWaveformSineModulated

Brand new is the PWM waveform. This is so new you need to get the audio lib from github. It'll be in the 1.37 release, coming in about 1 month.

https://www.pjrc.com/teensy/gui/?info=AudioSynthWaveformPWM

The input signal to the PWM object modulates the PWM waveform's duty cycle.

Later this year I'm planning to add more signal-modulated waveform synthesis. The FM sine is also going to be reworked to allow more modulation range. These algorithms can be quite difficult to get right and implement without using massive CPU time, since they recompute stuff 44100 times per second.
Click to expand...


So, if I'm looking at that image correctly, the waveform objects in the gui image above are actually PWM or FM sines but labelled waveform?

Signal modulation would be fantastic, but I have to say I've been enjoying the limitations the current set up has.
 
My 9-yo daughter enjoyed playing with the synth (we dropped by Sunday afternoon). It was a popular item! It usually had 2 or 3 people attacking it at once so it wasn't easy to tell which controls were doing what.

IMG_6275.JPG
 
Status
Not open for further replies.
Back
Top