WAV Trigger Polyphonic Audio Player SparkFun

The WAV Trigger is a unique high-fidelity polyphonic audio player with surprising capabilities. Supporting up to 2048 uncompressed 16-bit, 44.1kHz wav files – the same quality as an audio CD – the WAV Trigger can play and mix up to 14 stereo tracks simultaneously and independently, with very low latency. Tracks can be controlled via 16 programmable trigger inputs, or by using a native serial control protocol or even MIDI.

On-board sample rate conversion allows for smoothly changing playback speed/pitch from 0.5x to 2x. in real-time. The WAV Trigger supports both SDSC (up to 2GB) and SDHC (up to 32GB) type microSD cards. The WAV Trigger supports both SDSC (up to 2GB) and SDHC (up to 32GB) type microSD cards.

Check the link in the resources below to keep up with the latest Firmware updates!

• Supports up to 2048 uncompressed 16-bit stereo WAV files at 44.1kHz – CD quality
• Polyphonic! Play and mix up to 14 stereo tracks independently and simultaneously
• Sample-accurate starting and playback of up to 14 parallel stereo tracks
• Trigger-to-sound delay: 8 msecs typ, 12 msecs max
• MIDI control: Velocity-sensitive triggering of up to16 banks of 128 tracks
• Real-time playback rate control and MIDI Pitch Bend
• Pause and resume individual or groups of tracks. Multiple random trigger ranges
• True line-level stereo output: 2.1V RMS ground centered, 100dB SNR
• On-board mono audio amplifier and speaker connector: 2W into 4 Ohms, 1.25W into 8 Ohms
• 16 trigger inputs are individually adjustable for contact closure, 3.3V or 5.0V control
• Trigger inputs can be individually inverted, and/or set to be edge, latched or level sensitive
• Volumes adjustable from +10dB to -70dB in 0.5dB increments
• Firmware volume fades (attacks & decays) and cross-fades
• A dedicated “Play” status digital output pin
• 3.3V and 5.0V output pins
• Extensive serial control. Arduino library available. Pin compatible with SparkFun FTDI Basic

• Schematic
• Eagle Files
• Datasheet (STM32F405RGT6)
• Hookup Guide
• User Guide
• Firmware Updates and Utilities
• Product Page
• GitHub
• GitHub (Library)
• Tsunami Hookup Guide
• Pinball Sounds and Music

FAQs:

Q: What audio formats does the WAV Trigger support?

A: The WAV Trigger supports uncompressed 16-bit, 44.1kHz WAV files, the same quality as an audio CD.

Q: How many tracks can be played simultaneously on the WAV Trigger?

A: The WAV Trigger can play and mix up to 14 stereo tracks simultaneously and independently.

Q: What methods can be used to control the WAV Trigger?

A: You can control the WAV Trigger using 16 programmable trigger inputs, a native serial control protocol, or MIDI. Trigger inputs can be connected to switches, buttons, or digital outputs from sensors or microcontrollers.

Q: Can I change the playback speed or pitch in real-time?

A: Yes, the WAV Trigger allows for smoothly changing playback speed/pitch from 0.5x to 2x in real-time using onboard sample rate conversion.

Q: What kind of output does the WAV Trigger have?

A: The WAV Trigger has a true line-level stereo output with 2.1V RMS ground centered and 100dB SNR. It also has an onboard mono audio amplifier and speaker connector for driving a speaker directly.