Samtal Voice API

Text-to-Speech

Voice

Quality 16

FastHigh quality

Format

Voice design (optional — overrides selected voice)

Gender

Age

Pitch

Accent

Whisper

Text

Speech-to-Text

Upload Audio

Or Record

Round-Trip

TTS then ASR — tests full pipeline accuracy and latency.

Voice Cloning

Record a short speech sample, then use it as the voice for TTS. Both the audio and its transcript are required.

Step 1: Record Reference

Read one of these sentences naturally. 5-15 seconds works best.

Step 2: Verify Transcript

Auto-filled from your recording. Edit if needed.

Step 3: Generate with Cloned Voice

Overview

Drop-in replacement for ElevenLabs. Point any ElevenLabs SDK at https://samtal.moln.ai. Powered by OmniVoice (646-language TTS) and Parakeet TDT 0.6b-v3 (25-language ASR) on NVIDIA GPU.

Authentication

xi-api-key: sk_your_key_here

Endpoints

POST /v1/text-to-speech/{voice_id}

POST /v1/text-to-speech/{voice_id}/stream — chunked streaming

POST /v1/speech-to-text

GET /v1/voices GET /v1/voices/{voice_id} GET /v1/models

Voices

voice_id	Name	Language
`spectra-en-default`	Nova	English
`spectra-en-warm`	Oliver	English
`spectra-sv-default`	Astrid	Swedish
`spectra-da-default`	Freja	Danish
`spectra-no-default`	Sigrid	Norwegian
`spectra-fi-default`	Aino	Finnish
`spectra-de-default`	Lena	German
`spectra-fr-default`	Camille	French
`spectra-es-default`	Lucia	Spanish
`spectra-it-default`	Giulia	Italian
`spectra-nl-default`	Emma	Dutch
`spectra-pl-default`	Zuzanna	Polish
`spectra-pt-default`	Beatriz	Portuguese

Performance

Operation	Latency	RTF
TTS (GPU, quality 4)	~35ms	0.10
ASR (GPU)	~70ms	0.039
Cached snippet	instant	0

Drop-in ElevenLabs Replacement

Set base_url to https://samtal.moln.ai
Use a Samtal API key

All endpoints, request formats, and response shapes are identical to ElevenLabs.

Samtal