hydra

hydra_mic_probe.js (1436B)

---

 // Paste into Vesktop DevTools console (Cmd+Opt+I) with Hydra selected as input.
 // Reports what Chromium's WebRTC capture actually sees from the device — the layer
 // shell tools can't reach. Run with Hydra selected, then again with Loopback, compare.
 (async () => {
   const md = navigator.mediaDevices;
   const s = await md.getUserMedia({ audio: { channelCount: 2, echoCancellation:false, noiseSuppression:false, autoGainControl:false } });
   const t = s.getAudioTracks()[0];
   console.log("[probe] track:", t.label);
   console.log("[probe] settings:", JSON.stringify(t.getSettings()));   // channelCount HERE is the truth
   // Tap the actual samples per channel
   const ac = new AudioContext();
   const src = ac.createMediaStreamSource(s);
   const sp = ac.createScriptProcessor(4096, 2, 2);
   let n=0, peakL=0, peakR=0;
   sp.onaudioprocess = e => {
     const L=e.inputBuffer.getChannelData(0), R=e.inputBuffer.getChannelData(1);
     for (let i=0;i<L.length;i++){ peakL=Math.max(peakL,Math.abs(L[i])); peakR=Math.max(peakR,Math.abs(R[i])); }
     if (++n>=20){ sp.disconnect(); src.disconnect(); s.getTracks().forEach(x=>x.stop()); ac.close();
       console.log(`[probe] captured peaks  L=${peakL.toFixed(4)}  R=${peakR.toFixed(4)}  ${peakL>0.001&&peakR>0.001?"BOTH ✓":"ONE EAR ✗"}`); }
   };
   src.connect(sp); sp.connect(ac.destination);
   console.log("[probe] listening 2s — make sure audio is routing into Hydra...");
 })();