try to send exactly 10ms packets

public/rust_mic_worklet.js

@@ -1,15 +1,12 @@
 const SAMPLE_RATE = 48000;
-const PACKET_MS = 10;
-const PACKET_FRAMES = PACKET_MS / 1000 * SAMPLE_RATE;
-//const PACKET_FRAMES = 2400;
-console.log("Frames per packet:", PACKET_FRAMES);
+const PACKET_SAMPLES = 480;
 
 class RustWorklet extends AudioWorkletProcessor {
   constructor(options) {
     super();
     this.module = options.processorOptions;
     this.timestamp = null;
-    this.buffer = new Float32Array(PACKET_FRAMES);
+    this.buffer = new Float32Array(PACKET_SAMPLES * 2);
     this.buffer_offset = 0;
     if (sampleRate != SAMPLE_RATE) {
       throw Error(`sample rate ${sampleRate} should be ${SAMPLE_RATE}`);
@@ -23,15 +20,16 @@ class RustWorklet extends AudioWorkletProcessor {
     const data = {
       format: 'f32',
       sampleRate: SAMPLE_RATE,
-      //numberOfFrames: this.buffer_offset,
       numberOfFrames: this.buffer_offset,
       numberOfChannels: 1,
       timestamp: this.timestamp,
-      //timestamp: null,
-      data: this.buffer.slice(0, this.buffer_offset),
+      data: this.buffer.slice(0, PACKET_SAMPLES),
     };
     this.port.postMessage(data);
-    this.buffer_offset = 0;    
+    if (this.buffer_offset > PACKET_SAMPLES) {
+      this.buffer.copyWithin(0, PACKET_SAMPLES, this.buffer_offset);
+    }
+    this.buffer_offset -= PACKET_SAMPLES;
     this.timestamp = null;
    }
 
@@ -52,18 +50,12 @@ class RustWorklet extends AudioWorkletProcessor {
 
     const frames = input[0];
 
-    if (this.buffer_offset + frames.length > this.buffer.length) {
-      // too full, send now
-      this.do_send();
-    }
-
     this.buffer.set(frames, this.buffer_offset);
     this.buffer_offset += frames.length;
-
-    if (this.buffer_offset + 128 > this.buffer.length) {
-      // full enough, send now
+    if (this.buffer_offset >= PACKET_SAMPLES) {
       this.do_send();
     }
+
     return true;
   }
 };