MCPVault

speedScale

MCP tool from MCP Tts Voicevox by kajidog

Playback speed

How to use it

speedScale is exposed by the MCP Tts Voicevox MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the speedScale tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

Install MCP Tts Voicevox

$npx @kajidog/mcp-tts-voicevox --url http://192.168.1.100:50021 --speaker 3 --speed 1.2
FULL MCP TTS VOICEVOX LISTING

Other tools in MCP Tts Voicevox (21)

immediate

Immediate playback (clears queue)

phrases

Inline accent notation (takes priority over text)

speaker

Speaker ID

text

Text to speak (multiple segments separated by newlines)

voicevox_add_user_dictionary_word

Add a word (pronunciation accepts inline accent notation)

voicevox_add_user_dictionary_words

Add multiple words at once

voicevox_delete_user_dictionary_word

Delete a word by UUID

voicevox_get_accent_phrases

Get reading and accent positions of a text as inline notation

voicevox_get_player_state

Read the current player state (paginated) for AI tuning.

voicevox_get_speakers

Get list of available speakers

voicevox_get_user_dictionary

List user dictionary words (filter + pagination)

voicevox_open_dictionary_ui

Open the user dictionary manager UI.

voicevox_ping

Check VOICEVOX Engine connection

voicevox_resynthesize_player

Update all segments for an existing player (new viewUUID each call).

voicevox_speak_player

Create a new player session and display the UI. Returns viewUUID.

voicevox_stop_speaker

Stop playback and clear queue

voicevox_synthesize_file

Generate audio file

voicevox_update_user_dictionary_word

Update a word (omitted fields keep their value)

voicevox_update_user_dictionary_words

Update multiple words at once

waitForEnd

Wait for playback completion

waitForStart

Wait for playback to start