Stackmat Signal Processor
An Audio Worklet to process Stackmat Signals in real time and communicating an event stream through the Worker's message broker.
Example usage
A simple example of how to implement the Stackmat Signal Processor with an Analyser.
import StackmatSignalProcessor from 'stackmat-signal-processor'
async function connect() {
// Connect to media device
let stream = await navigator.mediaDevices.getUserMedia({
"audio": {"optional": [{"echoCancellation": false}]}
})
// Get the Audio Context
const audioContext = new AudioContext({
"echoCancellation": false,
"noiseSuppression": false
})
// Create relevant Audio Nodes
const microphone = audioContext.createMediaStreamSource(stream)
// Connecting the StackmatSignalProcessor
await audioContext.audioWorklet.addModule(StackmatSignalProcessor)
// Create an Audio Node for the Stackmat Signal Processor
const stackmatSignal = new AudioWorkletNode(audioContext, 'StackmatSignalProcessor')
microphone.connect(stackmatSignal)
stackmatSignal.connect(audioContext.destination)
stackmatSignal.port.onmessage = event => {
handle(event.data)
}
}Note: Do not connect the Audio nodes to the device, as the Stackmat Signal Processor using the audio output for data states, doesn't sound pleasant.
Message format
{
"state": {
"id": 6,
"descriptor": "LEFT",
},
"rightHand": false,
"leftHand": true,
"bothHands": false,
"isReset": false,
"isRunning": true,
"time": 12373
}Timers Supported so far
✔ Stackmat Timer Gen 4
✔ Stackmat Timer Gen 4 (with faulty pad detection)
❌ Stackmat Timer Gen 3
❌ Yuxin Timer v2
❌ Moyu Timer