How to adjust the pitch (tone)

Important: The pitch parameter is only supported for bulbul:v2. It is not available for bulbul:v3.

The pitch parameter controls the tone of the synthesized speech by making the voice deeper or sharper.

It is optional, and if omitted, the default value 0.0 (neutral pitch) is used.

Range: -0.75 (deeper voice) to 0.75 (sharper voice)
Default: 0.0 (neutral pitch)

Use this to make the voice sound either lower or higher depending on your preference or use case.

Example Code

Rest API

Streaming API

1 from sarvamai import SarvamAI
2 from sarvamai.play import save
3 
4 # Initialize the REST client
5 client = SarvamAI(api_subscription_key="YOUR_SARVAM_API_KEY")
6 
7 # Generate speech using REST (pitch is only supported in bulbul:v2)
8 audio = client.text_to_speech.convert(
9     text="Welcome to Sarvam AI!",
10     model="bulbul:v2",
11     target_language_code="en-IN",
12     speaker="anushka",
13     pitch=0.5  # Increase pitch for a sharper tone
14 )
15 save(audio, "output1.wav")

1	from sarvamai import SarvamAI
2	from sarvamai.play import save
3
4	# Initialize the REST client
5	client = SarvamAI(api_subscription_key="YOUR_SARVAM_API_KEY")
6
7	# Generate speech using REST (pitch is only supported in bulbul:v2)
8	audio = client.text_to_speech.convert(
9	text="Welcome to Sarvam AI!",
10	model="bulbul:v2",
11	target_language_code="en-IN",
12	speaker="anushka",
13	pitch=0.5 # Increase pitch for a sharper tone
14	)
15	save(audio, "output1.wav")