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March 15, 2006
about 2 months ago
Trigger inputs can be configured using the init file and the Init File Maker application. One of the options is “Level Sensitive”, which will produce the behavior you want - track starts when the trigger is activated and plays only as long as the trigger remains active. The trigger sense can be changed from low to high using the “Invert” option. I suggest you download the Init File Maker app and have a look.
You want the WAV Trigger. The MP3 Trigger lacks the programmable trigger features.
about 3 months ago
I am unable to duplicate your issue - it seems to work correctly for me. With re-trigger disabled, I’ve not been able to get it to restart while the track is playing. What’s “a while”? Are you using the most recent firmware version?
about 4 months ago
This is the first I’ve heard of this - thanks for reporting it. I’ll have a look to see if I can recreate and get to the bottom of it.
The WAV Trigger’s cpu operates at 3.3V but all of the inputs, including the UART RX, are 5V tolerant. Hope this helps.
about 7 months ago
Please review this tutorial.
Yes, that’s true, although I’m surprised to hear that some tracks don’t play at all. I thought I had tested that pretty carefully. It’s a great suggestion, and one that’s been on the list for some time. Coming up with a different seed each power cycle probably means implementing an ADC to read a “random” analog value. I’m working on other things at the moment so it may take me a bit.
In the meantime, may I suggest that a Teensy, the WAV Trigger Serial Control Library and a little code would give you the ability to have any random functionality you care to create. The library allows you to easily start any track on the microSD card, and you can use the WAV Trigger Play Output (PLO) pin to determine when tracks are finished.
about 9 months ago
That’s just under 1GB. Shouldn’t be a problem.
about 10 months ago
Just want to point out that the WAV Trigger now supports 2048 tracks, not 999. That’s 16 complete banks of 128 MIDI note numbers.
There’s also an Arduino serial control library for the WAV Trigger with an example using the Uno here
about 11 months ago
There’s a whole bunch of things that the WAV Trigger can do that the MP3 Trigger can’t, the main things being polyphony, CD quality, uncompressed audio and MIDI. The only thing the MP3 Trigger can do that the WAV Trigger can’t is play MP3 files, but you can easily convert any MP3 to wav. I don’t know why you wouldn’t use the WAV Trigger.
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