How to set output_audio_bitrate

The output_audio_bitrate parameter defines the bitrate of the audio stream in kilobits per second. It controls the audio quality, file size, and streaming performance.

This parameter is optional. If not provided, the system uses the default value 128k.

Supported Bitrates

Value	Description
`32k`	Very low bitrate, smaller file, lower quality
`64k`	Low bitrate, suitable for speech
`96k`	Medium quality
`128k`	Default – good balance of quality and size
`192k`	High quality, larger audio files

Example Streaming API code

1 import asyncio
2 import base64
3 from sarvamai import AsyncSarvamAI, AudioOutput
4 import websockets
5 
6 async def tts_stream():
7     client = AsyncSarvamAI(api_subscription_key="YOUR_API_KEY")
8 
9     async with client.text_to_speech_streaming.connect(model="bulbul:v2") as ws:
10         await ws.configure(
11             target_language_code="hi-IN", 
12             speaker= "anushka",
13             output_audio_bitrate= "128k"
14         )
15         print("Sent configuration")
16 
17         text = (
18             "भारत की संस्कृति विश्व की सबसे प्राचीन और समृद्ध संस्कृतियों में से एक है।"
19             "यह विविधता, सहिष्णुता और परंपराओं का अद्भुत संगम है, "
20             "जिसमें विभिन्न धर्म, भाषाएं, त्योहार, संगीत, नृत्य, वास्तुकला और जीवनशैली शामिल हैं।"
21         )
22 
23         await ws.convert(text)
24         print("Sent text message")
25 
26         await ws.flush()
27         print("Flushed buffer")
28 
29         chunk_count = 0
30         with open("output.mp3", "wb") as f:
31             async for message in ws:
32                 if isinstance(message, AudioOutput):
33                     chunk_count += 1
34                     audio_chunk = base64.b64decode(message.data.audio)
35                     f.write(audio_chunk)
36                     f.flush()
37 
38         print(f"All {chunk_count} chunks saved to output.mp3")
39         print("Audio generation complete")
40 
41         
42         if hasattr(ws, "_websocket") and not ws._websocket.closed:
43             await ws._websocket.close()
44             print("WebSocket connection closed.")
45 
46 
47 if __name__ == "__main__":
48     asyncio.run(tts_stream())
49 
50 # --- Notebook/Colab usage ---
51 # await tts_stream()