fal.ai Audio

Text-to-speech and speech-to-text using state-of-the-art audio models on fal.ai.

How It Works

1. User provides text (for TTS) or audio URL (for STT)
2. Script selects appropriate model
3. Sends request to fal.ai API
4. Returns audio URL (TTS) or transcription text (STT)

Text-to-Speech Models

Model	Notes
fal-ai/minimax/speech-2.6-hd	Best quality
fal-ai/minimax/speech-2.6-turbo	Fast, good quality
fal-ai/elevenlabs/eleven-v3	Natural voices
fal-ai/chatterbox/multilingual	Multi-language, fast
fal-ai/kling-video/v1/tts	For video sync

Text-to-Music Models

Model	Notes
fal-ai/minimax-music/v2	Best quality
fal-ai/minimax-music/v1.5	Fast
fal-ai/lyria2	Google's model
fal-ai/elevenlabs/music	Song generation
fal-ai/sonauto/v2	Instrumental
fal-ai/ace-step	Short clips
fal-ai/beatoven	Background music

Speech-to-Text Models

Model	Features	Speed
fal-ai/whisper	Multi-language, timestamps	Fast
fal-ai/elevenlabs/scribe	Speaker diarization	Medium

Usage

Text-to-Speech

bash /mnt/skills/user/fal-audio/scripts/text-to-speech.sh [options]

Arguments:

• --text - Text to convert to speech (required)
• --model - TTS model (defaults to fal-ai/minimax/speech-2.6-turbo)
• --voice - Voice ID or name (model-specific)

Examples:

# Basic TTS (fast, good quality)
bash /mnt/skills/user/fal-audio/scripts/text-to-speech.sh \
  --text "Hello, welcome to the future of AI."

# High quality with MiniMax HD
bash /mnt/skills/user/fal-audio/scripts/text-to-speech.sh \
  --text "This is premium quality speech." \
  --model "fal-ai/minimax/speech-2.6-hd"

# Natural voices with ElevenLabs
bash /mnt/skills/user/fal-audio/scripts/text-to-speech.sh \
  --text "Natural sounding voice generation" \
  --model "fal-ai/elevenlabs/eleven-v3"

# Multi-language TTS
bash /mnt/skills/user/fal-audio/scripts/text-to-speech.sh \
  --text "Bonjour, bienvenue dans le futur." \
  --model "fal-ai/chatterbox/multilingual"

Speech-to-Text

bash /mnt/skills/user/fal-audio/scripts/speech-to-text.sh [options]

Arguments:

• --audio-url - URL of audio file to transcribe (required)
• --model - STT model (defaults to fal-ai/whisper)
• --language - Language code (optional, auto-detected)

Examples:

# Transcribe with Whisper
bash /mnt/skills/user/fal-audio/scripts/speech-to-text.sh \
  --audio-url "https://example.com/audio.mp3"

# Transcribe with speaker diarization
bash /mnt/skills/user/fal-audio/scripts/speech-to-text.sh \
  --audio-url "https://example.com/meeting.mp3" \
  --model "fal-ai/elevenlabs/scribe"

# Transcribe specific language
bash /mnt/skills/user/fal-audio/scripts/speech-to-text.sh \
  --audio-url "https://example.com/spanish.mp3" \
  --language "es"

MCP Tool Alternative

Text-to-Speech

mcp__fal-ai__generate({
  modelId: "fal-ai/minimax/speech-2.6-turbo",
  input: {
    text: "Hello, welcome to the future of AI."
  }
})

Speech-to-Text

mcp__fal-ai__generate({
  modelId: "fal-ai/whisper",
  input: {
    audio_url: "https://example.com/audio.mp3"
  }
})

Output

Text-to-Speech Output

Generating speech...
Model: fal-ai/minimax/speech-2.6-turbo

Speech generated!

Audio URL: https://v3.fal.media/files/abc123/speech.mp3
Duration: 5.2s

Speech-to-Text Output

Transcribing audio...
Model: fal-ai/whisper

Transcription complete!

Text: "Hello, this is the transcribed text from the audio file."
Duration: 12.5s
Language: en

Present Results to User

For TTS:

Here's the generated speech:

[Download audio](https://v3.fal.media/files/.../speech.mp3)

• Duration: 5.2s | Model: Maya TTS

For STT:

Here's the transcription:

"Hello, this is the transcribed text from the audio file."

• Duration: 12.5s | Language: English

Model Selection Guide

Text-to-Speech

MiniMax Speech 2.6 HD (fal-ai/minimax/speech-2.6-hd)

• Best for: Premium quality requirements
• Quality: Highest
• Speed: Medium

MiniMax Speech 2.6 Turbo (fal-ai/minimax/speech-2.6-turbo)

• Best for: General use with good quality
• Quality: High
• Speed: Fast

ElevenLabs v3 (fal-ai/elevenlabs/eleven-v3)

• Best for: Natural, realistic voices
• Quality: High
• Features: Many voice options

Chatterbox Multilingual (fal-ai/chatterbox/multilingual)

• Best for: Multi-language support
• Quality: Good
• Speed: Fast

Text-to-Music

MiniMax Music v2 (fal-ai/minimax-music/v2)

• Best for: High quality music generation
• Quality: Highest

Lyria2 (fal-ai/lyria2)

• Best for: Google's music model
• Quality: High

Speech-to-Text

Whisper (fal-ai/whisper)

• Best for: General transcription, timestamps
• Languages: 99+ languages
• Features: Word-level timestamps

ElevenLabs Scribe (fal-ai/elevenlabs/scribe)

• Best for: Multi-speaker recordings
• Features: Speaker diarization
• Quality: Professional-grade

Troubleshooting

Empty Audio

Error: Generated audio is empty

Check that your text is not empty and contains valid content.

Unsupported Audio Format

Error: Audio format not supported

Supported formats: MP3, WAV, M4A, FLAC, OGG
Convert your audio to a supported format.

Language Detection Failed

Warning: Could not detect language, defaulting to English

Specify the language explicitly with --language option.