C Speech Software

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Browse free open source C Speech Software and projects below. Use the toggles on the left to filter open source C Speech Software by OS, license, language, programming language, and project status.

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  • 1
    Open JTalk is a Japanese text-to-speech synthesis system. This software is released under the Modified BSD license.
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    Downloads: 1,000 This Week
    Last Update:
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  • 2
    Moonshine Voice

    Moonshine Voice

    Fast and accurate automatic speech recognition (ASR) for edge devices

    moonshine is an open-source automatic speech recognition toolkit optimized for fast and accurate transcription on edge devices and local environments. The project is designed to enable real-time voice applications such as live transcription, voice commands, and embedded speech interfaces without requiring heavy cloud infrastructure. Its architecture emphasizes low latency and flexible input handling, allowing audio streams of varying durations rather than relying on fixed processing windows. Moonshine supports multiple platforms including mobile, desktop, and embedded systems, and provides example projects to accelerate integration into real-world products. The toolkit also includes specialized model variants, including monolingual options that improve accuracy for specific languages. Overall, moonshine serves developers building privacy-conscious, on-device voice interfaces that demand high performance with minimal resource overhead.
    Downloads: 32 This Week
    Last Update:
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  • 3
    eGuideDog free software for the blind
    eGuideDog project develops free software for the blind. Currently, we focus on WebSpeech, Ekho TTS and WebAnywhere.
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    Downloads: 144 This Week
    Last Update:
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  • 4
    hts_engine is software to synthesize speech waveform from HMMs trained by the HMM-based speech synthesis system (HTS). This software is released under the Modified BSD license.
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    Downloads: 263 This Week
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  • 5
    The project provides a ready-to-use interface for the julius CSR engine for a handicapped child which is not able to use the keyboard well. It integrates into X11 and Windows. Find out how you can help: http://simon-listens.org/index.php?support
    Downloads: 17 This Week
    Last Update:
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  • 6
    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.
    Downloads: 16 This Week
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  • 7
    a tool for segmenting, labeling and transcribing speech
    Downloads: 19 This Week
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  • 8
    Source code from the Research Institute for Signals, Systems and Computational Intelligence http://fich.unl.edu.ar/sinc
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    Downloads: 26 This Week
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  • 9
    The Open VXI VoiceXML interpreter is a portable open source library that interprets the VoiceXML dialog markup language. It is designed to serve as a reference for parties interested in understanding how VoiceXML markup might be executed.
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    Downloads: 14 This Week
    Last Update:
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  • 10
    Winboard 4.5 Accessible Chess

    Winboard 4.5 Accessible Chess

    Chess for the Blind for the JAWS or NVDA Screen Readers

    Winboard 4.5 32-bit is a free Windows accessible Chess program that works automatically with the JAWS or the free NVDA screen reader. It is for the blind, low sighted or those who can not use a mouse. It provides vocal announcements of position changes and other selectable board conditions. Blind players also use a separate "tactile chess board". Winboard 4.5 has full keyboard access to move pieces and run menu items. Partial sighted players use high contrast mode and adjust board, piece, most font sizes and colors. Available languages are English, German, Spanish, Italian, Dutch and Russian. Games may be viewed, modified or saved in standard PGN format. Two Chess engines supply play and grand master strength move analysis. Connect to the Free Internet Chess Server (FICS) and play humans. Modify verbosity in screen reader configurations and in the Winboard "Sound" dialog under the "General" menu. Find all documentation in the "doc" folder under the Winboard directory of your C drive.
    Downloads: 13 This Week
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  • 11
    Speech Recognition in English & Polish

    Speech Recognition in English & Polish

    Speech recognition software for English & Polish languages

    Software for speech recognition in English & Polish languages. Basic versions of SkryBot: 1. SkryBot Home Speech (English Language) - https://sourceforge.net/projects/skrybotdomowy/files/ReleasesEnglish/InstalatorSkryBotHomeSpeechDemo-2.6.9.18117.exe/download 2. SkryBot DoMowy (Polish Language) - https://sourceforge.net/projects/skrybotdomowy/files/ReleasesPolish/InstalatorSkryBotDoMowyDemo-2.4.9.18117.exe/download More help: https://sourceforge.net/p/skrybotdomowy/wiki/ Domain advanced versions (Polish Language) 1. SkryBot Prawo - for judicial professionals. 2. SkryBot Administracyjny - for civil and government administration. 3. SkryBot Medycyna Rodzinna - for physicians Professional version of SkryBot (commercial) offers you: 1. Audio conversion and cutting sound files into smaller ones. 2. Searching for words or phrases in sound files (recognized by SkryBot). 3. Editing sound files and automatic cutting off long silence parts in audio file.
    Downloads: 2 This Week
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  • 12
    TeamBlibbityBlabbity is an attempt to document and provide an example implemention of the proprietary TeamSpeak 2 protocol.
    Downloads: 3 This Week
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  • 13
    Talkbox is a program wich makes your computer talk "with" you. It has a AI based on ALICE program C and uses Festvial speech engin along with speechd to produce voice synthisis. You input text by typeing there is no support for voice reconition.
    Downloads: 3 This Week
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  • 14
    To provide basic text-to-speech capability on as many platforms and for as many spoken languages as possible by formant synthesis from an International Phonetic Alphabet representation.
    Downloads: 3 This Week
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  • 15
    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.
    Downloads: 2 This Week
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  • 16

    AhoTTS Multilingual, a Multilingual TTS

    Text-to-Speech TTS for Basque, Spanish, Catalan, Galician and English

    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/
    Downloads: 1 This Week
    Last Update:
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  • 17
    Arabisc is speaker independent large vocabulary continuous speech recognizer for Arabic language released under GNU license.It is also a collection of open source tools that allows researchers and developers to build speech recognition systems for Arab
    Downloads: 1 This Week
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  • 18
    Speak Freely is a Cross Platform Internet telephony (Voice Chat) application which provides high quality voice grade audio with GSM and CELP compression and encryption with DES, Blowfish, and IDEA ciphers. Refering to recent news: The maintainers will never add any unwanted extra software in the zip download file but we can only speak for our selves.
    Downloads: 1 This Week
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  • 19

    Austrian German Voices for Festival

    Austrian voices for the Festival speech synthesis system

    Hidden Markov Model based voice models of Austrian German for the Festival speech synthesis system.
    Downloads: 1 This Week
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  • 20
    A language teaching program and library based on C. It includes sound snippets featuring native speakers. You can create, edit and use various lessons and learn via an optional GTK2 interface.
    Downloads: 1 This Week
    Last Update:
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  • 21

    WAV Speech Enhancer

    Filtering and noise gate for speech recordings

    WAV Speech Enhancer can be used to improve the signal to noise ratio of bad quality speech recordings: - Dynamic expansion - Pink noise attenuation - Low frequency noise (50-60Hz) suppression
    Downloads: 1 This Week
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  • 22

    liepa-tts-andoid

    Liepa TTS andoid engine

    TTS engne for Lithuanian language synthesation based on LIEPA project (https://www.xn--ratija-ckb.lt/liepa/infrastrukturines-paslaugos/elektroninio-teksto-skaitytuvas/7563)
    Downloads: 1 This Week
    Last Update:
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  • 23
    A phrase to phoneme code converter for the SpeakJet chip by Magnevation. Speakalator runs on Unix type operating systems.
    Downloads: 1 This Week
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  • 24
    Advanced Speech Signal Analysis library provides a structure to handle various file formats and a variety of analysis functions commonly used in speech processing.
    Downloads: 0 This Week
    Last Update:
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  • 25

    AhoTTS - TTS for Basque and Spanish

    Text-to-Speech for Basque and Spanish

    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/
    Downloads: 0 This Week
    Last Update:
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