Change default client sample rate to 16k

clients/python_client.py

@@ -18,7 +18,7 @@ Example streaming speech translation client (Python CLI).
 Usage
 -----
 
-    python clients/python_client.py --uri ws://localhost:8765 --sample-rate 48000
+    python clients/python_client.py --uri ws://localhost:8765 --sample-rate 16000
 """
 
 from __future__ import annotations
@@ -50,7 +50,7 @@ async def main(uri: str, sample_rate: int, chunk_duration_ms: int) -> None:
     uri :
         WebSocket server URI, e.g. ``"ws://localhost:8765"``.
     sample_rate :
-        Microphone capture sample rate (Hz), e.g. 48000.
+        Microphone capture sample rate (Hz), e.g. 16000.
     chunk_duration_ms :
         Audio chunk duration in milliseconds, e.g. 10.
     """
@@ -177,8 +177,8 @@ if __name__ == "__main__":
     parser.add_argument(
         "--sample-rate",
         type=int,
-        default=48000,
-        help="Microphone sample rate in Hz (default: 48000)",
+        default=16000,
+        help="Microphone sample rate in Hz (default: 16000)",
     )
     parser.add_argument(
         "--chunk-ms",

clients/web_client.html

@@ -252,8 +252,8 @@ http://creativecommons.org/licenses/by-nc-nd/4.0/
     let transcriptText = "";
 
     // Client capture parameters: 10 ms chunks at 48 kHz.
-    const SAMPLERATE = 48000;
-    const CHUNK_SIZE = 480; // 10 ms at 48k
+    const SAMPLERATE = 16000;
+    const CHUNK_SIZE = 160; // 10 ms at 48k
 
     function setStatus(text, state) {
       document.getElementById("statusText").textContent = text;