eSpeakNGSwift

A Swift wrapper for the eSpeakNG speech synthesizer and grapheme-to-phoneme (G2P) library for converting English text to phonetic representations suitable for text-to-speech (TTS) engines.

Supported Platforms

• iOS 18.0+
• macOS 15.0+
• (Other Apple platforms may work as well)

Installation

Add eSpeakNGSwift to your Swift Package Manager dependencies:

dependencies: [
    .package(url: "https://github.com/mlalma/eSpeakNGSwift", from: "1.0.1")
]

Features

• Phonemization: Convert text strings to phonetic representations
• Language Support: Currently supports English (US and UK variants)
• Easy Integration: Simple Swift API with comprehensive error handling
• Pre-built Framework: Includes pre-compiled eSpeakNG framework for easy integration

Basic Usage

import eSpeakNGLib

do {
    // Create an instance of the eSpeakNG wrapper
    let espeak = try eSpeakNG()

    // Set the language (required before phonemizing)
    try espeak.setLanguage(language: .enUS)

    // Convert text to phonemes
    let phonemes = try espeak.phonemize(text: "Hello world!")
    print("Phonemes: \(phonemes)")

} catch {
    print("Error: \(error)")
}

Language Options

Currently supported languages:

• .enUS - English (United States)
• .enGB - English (Great Britain)

try espeak.setLanguage(language: .enGB)

License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.

Acknowledgments

This library is built on top of the excellent eSpeakNG speech synthesizer library, which is licensed under GPL v3.