Description: Description: The WAV Trigger is a high-fidelity polyphonic audio player that allows you to do more than just add music and sound effects to your project. The WAV Trigger plays and blends up to 14 uncompressed 16-bit, stereo, 44.1kHz wav files - the same quality as audio CD’s. The board has a line-level stereo audio output jack for use with headphones or external amplifiers and an on-board mono audio amplifier with a 2-pin connector for driving a speaker directly.
Tracks can be controlled using 16 trigger inputs or a serial control port that supports a rich serial command protocol, as well as MIDI. Trigger inputs can be connected directly to switches and buttons, or to digital outputs from sensors or another microcontroller. Alternate functions allow triggers to play sequential or random tracks, pause and resume groups of tracks and even control volume.
The serial control protocol allows complex functions like controlling the volume of individual tracks, starting multiple tracks in sample-sync and smooth cross-fading between tracks. An Arduino library makes it easy to do real-time control and audio mixing.
The serial port even supports MIDI protocol, meaning that you can use the WAV Trigger to build a polyphohonic sampling synthesizer to play your own sounds. MIDI Channels and Note numbers are mapped to track numbers, and MIDI Controllers adjust volume as well as attack and release times. The WAV Trigger audio engine implements voice stealing (oldest playing voices are used for new MIDI Notes when all 14 voices are being used), note attack (fade-in), note release (fade-out) and latency averages less than 10 ms. The WAV Trigger supports both SDSC (up to 2GB) and SDHC (up to 32GB) type microSD cards.
Check the link in the documents below to keep up with the latest Firmware updates!
Note: This product is a collaboration with Robertsonics. A portion of each sales goes back to them for product support and continued development.
Based on 5 ratings:
1 of 1 found this helpful:
Very nice. We’re using this in serial mode, and it’s hands-down the best audio playback board marketed. 8-12ms response time, multiple sound tracks simultaneously.
Use SOX to format your audio.
3 of 3 found this helpful:
This is by far the most useful and versatile audio controller I have used, and I honestly can’t say enough about how pleased I am with it! I will for sure be buying lots more of these in the future.
PROS: It is very fast and responsive; it has no problem triggering multiple sounds in quick succession. (Update: I found that it will trigger 9 times per second without any problems. At 10, it starts to cut out.) The polyphonic ability is amazing. I have not been able to find another similar product anywhere that comes even close to offering something like it. I used an Arduino to trigger multiple sound effects simultaneously, and it works great. I LOVE that the configuration is done with an .ini file on the SD card. I bought two, I can swap the SD card from one to the other, and all the configurations swap over with it. Even though you can use an FTDI cable to configure it, you don’t have to, which is relieving. Just copy the .ini file to the SD card and it’s set! I used old SD cards as well as SDHC cards, and both worked flawlessly. It took me about 30min total to get started with these; they are so simple to use.
CONS: No reset button, which is unfortunate, especially since it requires a power cycle to switch SD cards. The cards output a very high-pitch whine when they first boot up; not a big deal, just a little annoying at times. Using the built-in amp requires a difficult modification to the board, but in my opinion it’s better to use a separate amplifier anyway, so don’t let that sway you. Finally, it is very ambiguous as to which row are triggers and which are ground! (This actually does drive me crazy at times.)
One more note: The guides did not do a very good job explaining how to set up the active trigger option, and it would be difficult for a beginner to figure it out. If you are triggering the pins from an Arduino, make sure you send the 5V through a 10K Ohm resistor, so you don’t accidentally damage anything. Also, make sure the WAV trigger and the Arduino share a common ground, or it won’t work.
1 of 1 found this helpful:
I have a little experience soldering. I have very little experience programming. However I was totally able to succeed with this. The amp used to program it is very easy to use. It is very easy to solder some header to, and you are listening to whatever you want. A very simple, friendly easy to use board. If you want to add audio to your next project, this is a simple and easy way to do that.
1 of 3 found this helpful:
The WAV trigger is missing some capacitors that if not added make this unit pretty much unusable if your wires are any longer than just a few inches.