Skip to main content
Glama

speech_to_speech

Change the voice in an audio file while keeping the original emotion and cadence.

Instructions

Transform audio to use a different voice while preserving emotion and cadence. Trigger: 'elevenlabs voice change', 'elevenlabs speech to speech', or 'elevenlabs sts'.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
audio_pathYesAbsolute path to the source audio file
voiceYesTarget voice name or ID to apply
modelNoSTS model: "eleven_english_sts_v2" (default)
stabilityNoVoice stability (0.0-1.0). Default: 0.5
similarity_boostNoVoice clarity/similarity (0.0-1.0). Default: 0.75
remove_background_noiseNoRemove background noise from source audio (default: false)
save_pathNoFile path to save the audio. If not provided, auto-saves to output directory.
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, description carries full burden but only notes 'preserves emotion and cadence.' Lacks details on limitations, input formats, or processing effects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Concise two sentences, front-loaded with purpose. Trigger phrases add slight noise but overall efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With 7 parameters and no output schema, description omits expected output format and parameter context (e.g., meaning of stability or when to use remove_background_noise).

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema covers all parameters fully (100% coverage), so baseline applies. Description adds no extra parameter meaning.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states the tool transforms audio to a different voice while preserving emotion and cadence, distinguishing it from siblings like text_to_speech or transcribe.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Implies usage via trigger phrases but no explicit when-to-use or compare with alternatives like clone_voice or text_to_speech.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/wynandw87/claude-code-elevenlabs-mcp'

If you have feedback or need assistance with the MCP directory API, please join our Discord server