show detected sample rate

app/static/index.html

@@ -171,6 +171,7 @@
     const precisionSelect = document.getElementById("precisionSelect");
     const modelLangs = document.getElementById("modelLangs");
     const modelSize = document.getElementById("modelSize");
+    const sampleRateElem = document.getElementById("sampleRate");
 
     function updateModelInfo() {
       const meta = MODEL_METADATA[modelSelect.value];
@@ -198,6 +199,9 @@
     navigator.mediaDevices.getUserMedia({ audio: true }).then(stream => {
       const context = new AudioContext();
       orig_sample_rate = context.sampleRate;
+      console.debug("Detected sample rate:", orig_sample_rate);
+      sampleRateElem.textContent = orig_sample_rate;
+
       updateModelInfo();
 
       // Now that we know the sample rate, open the WS