Open Source Sound Synthesis Software

Text to Speech engine for English and many other languages. Compact size with clear but artificial pronunciation. Available as a command-line program with many options, a shared library for Linux, and a Windows SAPI5 version.

eGuideDog project develops free software for the blind. Currently, we focus on WebSpeech, Ekho TTS and WebAnywhere.

Simple TTS Reader is a small utility that reads text from your clipboard using Microsoft Speech API. Whenever you copy any text, the app instantly converts it into spoken words. Select your preferred speech engine from those installed on your system, such as Microsoft Zira, and adjust speed and volume for personalized playback. The application can also be minimized to the system tray. Plus, it is free and comes with an intuitive interface that makes it accessible to everyone.

SPTK is a suite of speech signal processing tools for UNIX environments, e.g., LPC analysis, PARCOR analysis, LSP analysis, PARCOR synthesis filter, LSP synthesis filter, vector quantization techniques, and other extended versions of them.

Omilo is a simple text to speech application for Windows and Linux using Festival, Flite, Marytts and Piper voices.

Clavier virtuel et synthétiseur vocal pour les personnes ne pouvant plus parler et ayant du mal à utiliser leurs mains. Virtual keyboard and speech synthetiser for people with reduced mobility and unability to speak. In French and english.

Responding Partner is a windows application that enables you free talking with your computer which equipped with spoken animation character. You will be surprised how smart responding partner robot is. It also enables voice commands and controls to your computer for small task like open media files, open and close program, shutdown and restart computer,open website, type in editor, text to speech,etc. You can extend the ability by installing new plugin which available at files tab. We will continuous to update new plugin and animation character. Engine inside: - Speech Recognition - Text to Speech Requirements - Microphone

Epos is a language independent rule-driven Text-to-Speech (TTS) system primarily designed to serve as a research tool. Epos is (or tries to be) independent of the language processed, linguistic description method, and computing environment.

The official software package for Vietnamese voice support in the Festival speech synthesis system (text-to-speech). This voice is developed (and owned) by Pham Thanh Nam.

Cotovía is a unit-selection text-to-speech system for Galician and Spanish. Cotovía is distributed under the GPL3.0+ license, but each of the avaliable speaker voices has its own license. The speakers available at sourceforge are free for commercial and non-commercial uses. Another speaker, free for non-commercial uses, is avaliable through external links (see the Blog section). Cotovia has been developed by the University de Vigo and the center 'Ramón Piñeiro' for Research in Humanities, both in Galicia, Spain. Its development has involved a research group of linguists and engineers. Cotovía has been developed as a research project, therefore most of the work has been focused on the most interesting aspects from a scientific point of view. Although the performance of the whole TTS system is quite good, there are some parts that could be clearly improved. Cotovia files and installing instructions are available at the Files and Git sections.

Text-to-Speech conversor for Basque and Spanish. It includes linguistic processing and built voices for the languages aforementioned. Its acoustic engine is based on hts_engine and it uses a high quality vocoder called AhoCoder. Developed by Aholab Signal Processing Laboratory: https://aholab.ehu.es/aholab/ http://aholab.ehu.es/ahocoder/

AhoTTS Iparrahotsa is the TTS developed at the Aholab Signal Processing Laboratory of the University of the Basque Country (UPV/EHU) for the Lapurdian dialect of Basque. This dialect is spoken at the Northern area of the Basque speaking area (French region). This project was funded by the Euroregion Aquitaine-Euskadi under grant EUSKADI-2012-004.

Text-to-Speech conversor for Basque, Spanish, Catalan, Galician and English. It includes linguistic processing and built voices for all the languages aforementioned. Its acoustic engine is based on hts_engine and it uses a high quality vocoder called AhoCoder. Developed by Aholab Signal Processing Laboratory: https://aholab.ehu.es/aholab/ http://aholab.ehu.es/ahocoder/

Transform pure innocent audio files, speech, music, etc into unholy demonic abominations. Audio Satanifier 666 is a fun easy-to-use browser-based tool forged in the pits of hell, for voice actors, musicians, sound designers, for memes, for creative projects or anyone else who want to twist their sound into something absolutely diabolical! Layperson friendly - you'll be able to apply cool effects to your audio file even if you know nothing about audio engineering. Theres also a Mini version that has a voice deepening that doesn't slow the speed of the audio. Its more focused on the "satan voice" filter, while the larger default version has 16 different filters you can mix and match. (Source code is included within the html file itself.)

a GUI for the Festival speech synthesis program

A machine translation program designed to accept verbal or text input and provide text or speech synthesized voice translation as output. Makes use of 3 current open-source projects. The source is currently C/C++ and embedded perl.

The F Modular Synthesizer is a tool for creating all kinds of sounds, white and low-band noises and midi-like tunes with modulated frequencies, volumes, balances and many more features.

JeSpeak is a Java library that bridges eSpeak, which is a compact open source software speech synthesizer. JeSpeak uses JNI to make native call to libespeak.

A XFig based rapid prototype yeilding an audio speed alteration tool. This tool lets you arbitrarily alter the speed of audio files. It uses the WSOLA algorithm for audio speed alteration without pitch change.

A minimum voice generator. Maps text to sounds using also number to text (library included) transforms and spelling.

A Simple Nepali Voice Synthesis Project

High quality, cross-platform singing synthesizer.

Project that aims converting a text page directly into MP3 or other audio format using the MBrola libraries

SAMI is an extensible, voice-controlled home automation system which seamlessly controls all of the pieces of your apartment or house, without installation or monthly fees. For more information about how to use her, see the documentation tab!

Siomdo is an Indonesian Text to Speech program. Siomdo adalah program text to speech (TTS) bahasa Indonesia. Program Siomdo dapat membaca teks bahasa Indonesia dan mengucapkannya lewat speaker komputer. Selain itu juga dapat mengkonversi teks ke dalam bentuk file WAV.