Text-to-Speech

Usage Instructions

Generate natural-sounding speech from text using state-of-the-art AI voices from OpenAI, Deepgram, ElevenLabs, Cartesia, Google Cloud, Azure, and PlayHT. Supports multiple voices, languages, and audio formats.

Actions

OpenAI TTS

Convert text to speech using OpenAI TTS models

Input

Parameter	Type	Required	Description
`text`	string	Yes	The text content to convert to speech (e.g., "Hello, welcome to our service!")
`apiKey`	string	Yes	OpenAI API key
`model`	string	No	OpenAI TTS model identifier (e.g., "tts-1", "tts-1-hd", "gpt-4o-mini-tts")
`voice`	string	No	OpenAI voice identifier (e.g., "alloy", "ash", "ballad", "coral", "echo", "sage", "shimmer")
`responseFormat`	string	No	Audio format (mp3, opus, aac, flac, wav, pcm)
`speed`	number	No	Speech speed multiplier from 0.25 to 4.0 (e.g., 0.5 for slower, 1.0 for normal, 2.0 for faster)

Output

Parameter	Type	Description
`audioUrl`	string	URL to the generated audio file
`audioFile`	file	Generated audio file object
`duration`	number	Audio duration in seconds
`characterCount`	number	Number of characters processed
`format`	string	Audio format
`provider`	string	TTS provider used

Deepgram TTS

Convert text to speech using Deepgram Aura

Input

Parameter	Type	Required	Description
`text`	string	Yes	The text content to convert to speech (e.g., "Hello, welcome to our service!")
`apiKey`	string	Yes	Deepgram API key
`model`	string	No	Deepgram model/voice identifier (e.g., "aura-asteria-en", "aura-luna-en", "aura-2-luna-en")
`voice`	string	No	Deepgram voice identifier, alternative to model param (e.g., "aura-asteria-en", "aura-orion-en")
`encoding`	string	No	Audio encoding (linear16, mp3, opus, aac, flac)
`sampleRate`	number	No	Sample rate (8000, 16000, 24000, 48000)
`bitRate`	number	No	Bit rate for compressed formats
`container`	string	No	Container format (none, wav, ogg)

Output

Parameter	Type	Description
`audioUrl`	string	URL to the generated audio file
`audioFile`	file	Generated audio file object
`duration`	number	Audio duration in seconds
`characterCount`	number	Number of characters processed
`format`	string	Audio format
`provider`	string	TTS provider used

ElevenLabs TTS

Convert text to speech using ElevenLabs voices

Input

Parameter	Type	Required	Description
`text`	string	Yes	The text content to convert to speech (e.g., "Hello, welcome to our service!")
`voiceId`	string	Yes	ElevenLabs voice identifier (e.g., "21m00Tcm4TlvDq8ikWAM", "AZnzlk1XvdvUeBnXmlld")
`apiKey`	string	Yes	ElevenLabs API key
`modelId`	string	No	ElevenLabs model identifier (e.g., "eleven_turbo_v2_5", "eleven_flash_v2_5", "eleven_multilingual_v2")
`stability`	number	No	Voice stability (0.0 to 1.0, default: 0.5)
`similarityBoost`	number	No	Similarity boost (0.0 to 1.0, default: 0.8)
`style`	number	No	Style exaggeration (0.0 to 1.0)
`useSpeakerBoost`	boolean	No	Use speaker boost (default: true)

Output

Parameter	Type	Description
`audioUrl`	string	URL to the generated audio file
`audioFile`	file	Generated audio file object
`duration`	number	Audio duration in seconds
`characterCount`	number	Number of characters processed
`format`	string	Audio format
`provider`	string	TTS provider used

Cartesia TTS

Convert text to speech using Cartesia Sonic (ultra-low latency)

Input

Parameter	Type	Required	Description
`text`	string	Yes	The text content to convert to speech (e.g., "Hello, welcome to our service!")
`apiKey`	string	Yes	Cartesia API key
`modelId`	string	No	Cartesia model identifier (e.g., "sonic", "sonic-2", "sonic-3", "sonic-multilingual")
`voice`	string	No	Cartesia voice identifier or embedding (e.g., "a0e99841-438c-4a64-b679-ae501e7d6091")
`language`	string	No	Language code for speech synthesis (e.g., "en", "es", "fr", "de", "it", "pt")
`outputFormat`	json	No	Output format configuration (container, encoding, sampleRate)
`speed`	number	No	Speech speed multiplier (e.g., 0.5 for slower, 1.0 for normal, 2.0 for faster)
`emotion`	array	No	Emotion tags for Sonic-3 (e.g., ['positivity:high'])

Output

Parameter	Type	Description
`audioUrl`	string	URL to the generated audio file
`audioFile`	file	Generated audio file object
`duration`	number	Audio duration in seconds
`characterCount`	number	Number of characters processed
`format`	string	Audio format
`provider`	string	TTS provider used

Google Cloud TTS

Convert text to speech using Google Cloud Text-to-Speech

Input

Parameter	Type	Required	Description
`text`	string	Yes	The text content to convert to speech (e.g., "Hello, welcome to our service!")
`apiKey`	string	Yes	Google Cloud API key
`voiceId`	string	No	Google Cloud voice identifier (e.g., "en-US-Neural2-A", "en-US-Wavenet-D", "en-GB-Neural2-B")
`languageCode`	string	Yes	BCP-47 language code for speech synthesis (e.g., "en-US", "es-ES", "fr-FR", "de-DE")
`gender`	string	No	Voice gender (MALE, FEMALE, NEUTRAL)
`audioEncoding`	string	No	Audio encoding (LINEAR16, MP3, OGG_OPUS, MULAW, ALAW)
`speakingRate`	number	No	Speaking rate multiplier from 0.25 to 2.0 (e.g., 0.5 for slower, 1.0 for normal, 1.5 for faster)
`pitch`	number	No	Voice pitch (-20.0 to 20.0, default: 0.0)
`volumeGainDb`	number	No	Volume gain in dB (-96.0 to 16.0)
`sampleRateHertz`	number	No	Sample rate in Hz
`effectsProfileId`	array	No	Effects profile (e.g., ['headphone-class-device'])

Output

Parameter	Type	Description
`audioUrl`	string	URL to the generated audio file
`audioFile`	file	Generated audio file object
`duration`	number	Audio duration in seconds
`characterCount`	number	Number of characters processed
`format`	string	Audio format
`provider`	string	TTS provider used

Azure TTS

Convert text to speech using Azure Cognitive Services

Input

Parameter	Type	Required	Description
`text`	string	Yes	The text content to convert to speech (e.g., "Hello, welcome to our service!")
`apiKey`	string	Yes	Azure Speech Services API key
`voiceId`	string	No	Azure voice identifier (e.g., "en-US-JennyNeural", "en-US-GuyNeural", "en-GB-SoniaNeural")
`region`	string	No	Azure region (e.g., eastus, westus, westeurope)
`outputFormat`	string	No	Output audio format
`rate`	string	No	Speaking rate (e.g., +10%, -20%, 1.5)
`pitch`	string	No	Voice pitch (e.g., +5Hz, -2st, low)
`style`	string	No	Speaking style (e.g., cheerful, sad, angry - neural voices only)
`styleDegree`	number	No	Style intensity (0.01 to 2.0)
`role`	string	No	Role (e.g., Girl, Boy, YoungAdultFemale)

Output

Parameter	Type	Description
`audioUrl`	string	URL to the generated audio file
`audioFile`	file	Generated audio file object
`duration`	number	Audio duration in seconds
`characterCount`	number	Number of characters processed
`format`	string	Audio format
`provider`	string	TTS provider used

PlayHT TTS

Convert text to speech using PlayHT (voice cloning)

Input

Parameter	Type	Required	Description
`text`	string	Yes	The text content to convert to speech (e.g., "Hello, welcome to our service!")
`apiKey`	string	Yes	PlayHT API key (AUTHORIZATION header)
`userId`	string	Yes	PlayHT user ID (X-USER-ID header)
`voice`	string	No	PlayHT voice identifier or manifest URL (e.g., "s3://voice-cloning-zero-shot/...")
`quality`	string	No	Quality level (draft, standard, premium)
`outputFormat`	string	No	Output format (mp3, wav, ogg, flac, mulaw)
`speed`	number	No	Speech speed multiplier from 0.5 to 2.0 (e.g., 0.5 for slower, 1.0 for normal, 1.5 for faster)
`temperature`	number	No	Creativity/randomness (0.0 to 2.0)
`voiceGuidance`	number	No	Voice stability (1.0 to 6.0)
`textGuidance`	number	No	Text adherence (1.0 to 6.0)
`sampleRate`	number	No	Sample rate (8000, 16000, 22050, 24000, 44100, 48000)

Output

Parameter	Type	Description
`audioUrl`	string	URL to the generated audio file
`audioFile`	file	Generated audio file object
`duration`	number	Audio duration in seconds
`characterCount`	number	Number of characters processed
`format`	string	Audio format
`provider`	string	TTS provider used

Text-to-Speech

Nesta página