QuickCall VoiceOver

Multi-backend TTS tool for creating voice-over audio assets

Install | Quick Start | Backends | CLI Options | Voice Models | Configuration | Docker | License

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Install

Install with Piper backend

uv pip install quickcall-voiceover[piper]

Install with Kokoro backend

uv pip install quickcall-voiceover[kokoro]

# macOS: Also install espeak-ng
brew install espeak-ng

Install with all backends

uv pip install quickcall-voiceover[all]

# macOS: Also install espeak-ng for Kokoro
brew install espeak-ng

Quick Start

Config Mode

# Piper (default)
quickcall-voiceover config.json --combine

# Kokoro
quickcall-voiceover -b kokoro -v af_heart config.json --combine

Text File Mode

# Piper
quickcall-voiceover -t script.txt -c -o ./output

# Kokoro with af_heart voice
quickcall-voiceover -b kokoro -v af_heart -t script.txt -c -o ./output

Interactive Mode

quickcall-voiceover --text
quickcall-voiceover -b kokoro --text

Show Available Voices

quickcall-voiceover --voices           # Piper voices
quickcall-voiceover -b kokoro --voices # Kokoro voices

Backends

Backend	Model	Quality	Speed	Install
Piper	Various	Medium-High	Fast	Default
Kokoro	Kokoro-82M	High	Medium	[kokoro] extra

CLI Options

quickcall-voiceover [CONFIG] [OPTIONS]

Arguments:
  CONFIG                Path to JSON configuration file

Options:
  -b, --backend         TTS backend: piper, kokoro (default: piper)
  -t, --text [FILE]     Text mode: provide .txt file or use interactively
  -v, --voice VOICE     Voice model (default depends on backend)
  -o, --output DIR      Output directory (default: ./output)
  -m, --models DIR      Models directory (default: ./models)
  -c, --combine         Create a combined audio file from all segments
  --combined-name       Filename for combined output (default: combined_voiceover.wav)
  --voices              Show available voice models and exit
  -h, --help            Show help message

Examples

# Piper (default backend)
quickcall-voiceover config.json --combine
quickcall-voiceover -t script.txt -v en_US-ryan-high -c

# Kokoro backend
quickcall-voiceover -b kokoro -v af_heart config.json -c
quickcall-voiceover -b kokoro -v am_michael -t script.txt -c

# Use config for voice settings, text file for content
quickcall-voiceover voice_config.json -t script.txt -c

# Interactive text mode
quickcall-voiceover --text
quickcall-voiceover -b kokoro --text

Voice Models

Piper Voices

Model ID	Name	Description
en_US-hfc_male-medium	Male (US)	Clear male voice (default)
en_US-hfc_female-medium	Female (US)	Clear female voice
en_US-amy-medium	Amy (US)	Natural female voice
en_US-joe-medium	Joe (US)	Natural male voice
en_US-ryan-high	Ryan (US)	High quality male voice
en_US-lessac-high	Lessac (US)	High quality female voice
en_GB-alan-medium	Alan (UK)	British male voice
en_GB-alba-medium	Alba (UK)	British female voice
en_GB-cori-high	Cori (UK)	High quality British female

Browse all Piper voices at Piper samples.

Kokoro Voices

Voice ID	Name	Description
af_heart	Heart (US Female)	Warm, expressive (default)
af_bella	Bella (US Female)	Clear American female
af_nicole	Nicole (US Female)	Professional American female
af_sarah	Sarah (US Female)	Friendly American female
af_sky	Sky (US Female)	Bright American female
am_adam	Adam (US Male)	Clear American male
am_michael	Michael (US Male)	Professional American male
bf_emma	Emma (UK Female)	British female
bf_isabella	Isabella (UK Female)	Elegant British female
bm_george	George (UK Male)	British male
bm_lewis	Lewis (UK Male)	Clear British male

More info at Kokoro-82M on HuggingFace.

Configuration

Config File Format

{
  "voice": {
    "backend": "piper",
    "model": "en_US-hfc_male-medium",
    "length_scale": 1.0,
    "noise_scale": 0.667,
    "noise_w": 0.8,
    "sentence_silence": 0.5
  },
  "output": {
    "format": "wav"
  },
  "segments": [
    {
      "id": "01_intro",
      "text": "Welcome to the demo."
    },
    {
      "id": "02_main",
      "text": "This is the main content."
    }
  ]
}

Kokoro Config

{
  "voice": {
    "backend": "kokoro",
    "model": "af_heart",
    "speed": 1.0
  },
  "output": {
    "format": "wav"
  },
  "segments": [
    {
      "id": "01_intro",
      "text": "Welcome to the demo."
    }
  ]
}

Voice Settings

Piper Settings

Field	Type	Default	Description
backend	string	piper	TTS backend
model	string	en_US-hfc_male-medium	Piper voice model
length_scale	float	1.0	Speech speed (lower = faster)
noise_scale	float	0.667	Voice variation
noise_w	float	0.8	Phoneme width noise
sentence_silence	float	0.5	Silence between sentences (seconds)

Kokoro Settings

Field	Type	Default	Description
backend	string	kokoro	TTS backend
model	string	af_heart	Kokoro voice ID
speed	float	1.0	Speech speed multiplier

Programmatic Usage

from pathlib import Path
from quickcall_voiceover import generate_voiceover, generate_from_text

# Piper (default)
generate_voiceover(
    config_path=Path("config.json"),
    output_dir=Path("./output"),
    combine=True,
)

# Kokoro
generate_voiceover(
    config_path=Path("config.json"),
    output_dir=Path("./output"),
    combine=True,
    backend="kokoro",
    voice="af_heart",
)

# From text lines with Kokoro
lines = [
    "First line of voice over.",
    "Second line of voice over.",
]

generate_from_text(
    lines=lines,
    voice="af_heart",
    output_dir=Path("./output"),
    combine=True,
    backend="kokoro",
)

Docker

Build the image:

docker build -t quickcall-voiceover .

Run with a config file:

docker run -v $(pwd)/config:/config -v $(pwd)/output:/app/output \
  quickcall-voiceover /config/voiceover.json --combine

License

This project is licensed under Apache-2.0.

Note: This tool depends on:

• Piper TTS - GPL-3.0 license
• Kokoro - Apache-2.0 license (trained on CC BY licensed datasets)

These are installed as separate dependencies and are not bundled with this package.

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Built with ❤️ by QuickCall