text_to_sound_effects

Generate sound effects from text descriptions using ElevenLabs API. Specify duration, output format, and save location for audio files used in projects requiring custom sound design.

Instructions

Convert text description of a sound effect to sound effect with a given duration and save the output audio file to a given directory. Directory is optional, if not provided, the output file will be saved to $HOME/Desktop. Duration must be between 0.5 and 5 seconds.

⚠️ COST WARNING: This tool makes an API call to ElevenLabs which may incur costs. Only use when explicitly requested by the user.

Args:
    text: Text description of the sound effect
    duration_seconds: Duration of the sound effect in seconds
    output_directory: Directory where files should be saved.
        Defaults to $HOME/Desktop if not provided.
    loop: Whether to loop the sound effect. Defaults to False.
    output_format (str, optional): Output format of the generated audio. Formatted as codec_sample_rate_bitrate. So an mp3 with 22.05kHz sample rate at 32kbs is represented as mp3_22050_32. MP3 with 192kbps bitrate requires you to be subscribed to Creator tier or above. PCM with 44.1kHz sample rate requires you to be subscribed to Pro tier or above. Note that the μ-law format (sometimes written mu-law, often approximated as u-law) is commonly used for Twilio audio inputs.
        Defaults to "mp3_44100_128". Must be one of:
        mp3_22050_32
        mp3_44100_32
        mp3_44100_64
        mp3_44100_96
        mp3_44100_128
        mp3_44100_192
        pcm_8000
        pcm_16000
        pcm_22050
        pcm_24000
        pcm_44100
        ulaw_8000
        alaw_8000
        opus_48000_32
        opus_48000_64
        opus_48000_96
        opus_48000_128
        opus_48000_192

Input Schema

TableJSON Schema

Name	Required	Default
`duration_seconds`	No
`loop`	No
`output_directory`	No
`output_format`	No	mp3_44100_128
`text`	Yes

Implementation Reference

elevenlabs_mcp/server.py:360-386 (handler)

The handler function that implements the core logic of the 'text_to_sound_effects' tool. It validates input, generates sound effects audio using the ElevenLabs client, saves the audio file, and returns the file path.

def text_to_sound_effects(
    text: str,
    duration_seconds: float = 2.0,
    output_directory: str | None = None,
    output_format: str = "mp3_44100_128",
    loop: bool = False,
) -> TextContent:
    if duration_seconds < 0.5 or duration_seconds > 5:
        make_error("Duration must be between 0.5 and 5 seconds")
    output_path = make_output_path(output_directory, base_path)
    output_file_name = make_output_file("sfx", text, output_path, "mp3")

    audio_data = client.text_to_sound_effects.convert(
        text=text,
        output_format=output_format,
        duration_seconds=duration_seconds,
        loop=loop,
    )
    audio_bytes = b"".join(audio_data)

    with open(output_path / output_file_name, "wb") as f:
        f.write(audio_bytes)

    return TextContent(
        type="text",
        text=f"Success. File saved as: {output_path / output_file_name}",
    )

elevenlabs_mcp/server.py:325-359 (registration)

The @mcp.tool decorator registers the 'text_to_sound_effects' tool, including its detailed description, parameters, and usage instructions.

@mcp.tool(
    description="""Convert text description of a sound effect to sound effect with a given duration and save the output audio file to a given directory.
    Directory is optional, if not provided, the output file will be saved to $HOME/Desktop.
    Duration must be between 0.5 and 5 seconds.

    ⚠️ COST WARNING: This tool makes an API call to ElevenLabs which may incur costs. Only use when explicitly requested by the user.

    Args:
        text: Text description of the sound effect
        duration_seconds: Duration of the sound effect in seconds
        output_directory: Directory where files should be saved.
            Defaults to $HOME/Desktop if not provided.
        loop: Whether to loop the sound effect. Defaults to False.
        output_format (str, optional): Output format of the generated audio. Formatted as codec_sample_rate_bitrate. So an mp3 with 22.05kHz sample rate at 32kbs is represented as mp3_22050_32. MP3 with 192kbps bitrate requires you to be subscribed to Creator tier or above. PCM with 44.1kHz sample rate requires you to be subscribed to Pro tier or above. Note that the μ-law format (sometimes written mu-law, often approximated as u-law) is commonly used for Twilio audio inputs.
            Defaults to "mp3_44100_128". Must be one of:
            mp3_22050_32
            mp3_44100_32
            mp3_44100_64
            mp3_44100_96
            mp3_44100_128
            mp3_44100_192
            pcm_8000
            pcm_16000
            pcm_22050
            pcm_24000
            pcm_44100
            ulaw_8000
            alaw_8000
            opus_48000_32
            opus_48000_64
            opus_48000_96
            opus_48000_128
            opus_48000_192
    """
)

ElevenLabs MCP Server