sound-effects

ElevenLabs Sound Effects

Generate sound effects from text descriptions — supports looping, custom duration, and prompt adherence control.

Setup, before writing any code: if ELEVENLABS_API_KEY isn't set for this project, run npx -y @elevenlabs/cli@latest onboard init from the app's folder first and follow what it prints: it signs the user in and stores a key for the project, so nobody copies one by hand. Otherwise see the Installation Guide. For JavaScript, use @elevenlabs/* packages only.

Quick Start

Python

from elevenlabs import ElevenLabs

client = ElevenLabs()

audio = client.text_to_sound_effects.convert(
    text="Thunder rumbling in the distance with light rain",
)

with open("thunder.mp3", "wb") as f:
    for chunk in audio:
        f.write(chunk)

JavaScript

import { ElevenLabsClient } from "@elevenlabs/elevenlabs-js";
import { createWriteStream } from "fs";

const client = new ElevenLabsClient();
const audio = await client.textToSoundEffects.convert({
  text: "Thunder rumbling in the distance with light rain",
});
audio.pipe(createWriteStream("thunder.mp3"));

CLI

elevenlabs text-to-sound-effects convert \
  --text "Thunder rumbling in the distance with light rain" \
  --output thunder.mp3

Parameters

Parameter	Type	Default	Description
text	string (required)	—	Description of the desired sound effect
model_id	string	eleven_text_to_sound_v2	Model to use
duration_seconds	number | null	null (auto)	Duration 0.5–30s; auto-calculated if null
prompt_influence	number | null	0.3	How closely to follow the prompt (0–1)
loop	boolean	false	Generate a seamlessly looping sound (v2 model only)

Examples with Parameters

# Looping ambient sound, 10 seconds
audio = client.text_to_sound_effects.convert(
    text="Gentle forest ambiance with birds chirping",
    duration_seconds=10.0,
    prompt_influence=0.5,
    loop=True,
)

# Short UI sound, high prompt adherence
audio = client.text_to_sound_effects.convert(
    text="Soft notification chime",
    duration_seconds=1.0,
    prompt_influence=0.8,
)

Output Formats

Pass --output-format (CLI) or output_format as an SDK parameter:

Format	Description
mp3_44100_128	MP3 44.1kHz 128kbps (default)
pcm_44100	Raw uncompressed CD quality
opus_48000_128	Opus 48kHz 128kbps — efficient compressed
ulaw_8000	μ-law 8kHz — telephony

Full list: mp3_22050_32, mp3_24000_48, mp3_44100_32, mp3_44100_64, mp3_44100_96, mp3_44100_128, mp3_44100_192, pcm_8000, pcm_16000, pcm_22050, pcm_24000, pcm_32000, pcm_44100, pcm_48000, wav_8000, wav_16000, wav_22050, wav_24000, wav_32000, wav_44100, wav_48000, ulaw_8000, alaw_8000, opus_48000_32, opus_48000_64, opus_48000_96, opus_48000_128, opus_48000_192.

Prompt Tips

• Be specific: "Heavy rain on a tin roof" > "Rain"
• Combine elements: "Footsteps on gravel with distant traffic"
• Specify style: "Cinematic braam, horror" or "8-bit retro jump sound"
• Mention mood/context: "Eerie wind howling through an abandoned building"

Error Handling

try:
    audio = client.text_to_sound_effects.convert(text="Explosion")
except Exception as e:
    print(f"API error: {e}")

Common errors:

• 401: Invalid API key
• 422: Invalid parameters (check duration range, prompt_influence range)
• 429: Rate limit exceeded

References

• Installation Guide