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March 15, 2006
about 3 months ago
Yes, you can manage the left/right as individual mono outputs by making stereo wav files with silence on one channel. Channel separation out of the PCM5100 stereo line-level output is as good as any high-quality DAC. The on-board audio amp is mono and only connected to the left channel; It’s designed for simple, single speaker, low-volume applications. Hope this helps
about 4 months ago
I don’t know if you’re still monitoring this thread, but I have a unit here which is doing the same thing. Unfortunately the unit to which I’m able to attach my debugger doesn’t, so I’m not sure quite how to troubleshoot this. Just wanted you to know that at least I’ve seen the same behavior and I’ll update this post when I have more info.
UPDATE: Found the problem - It can happen when you deselect BOTH re-trigger and polyphonic. If polyphonic is left checked (default), it works fine.
I’ve fixed this and rolled it into the next firmware update, v1.30, which will be posted as soon as all the new features are tested.
about 6 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 8 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?
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 11 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 a year ago
That’s just under 1GB. Shouldn’t be a problem.
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.
No public wish lists :(
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