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List of speech recognition software

From Wikipedia, the free encyclopedia

Speech recognition software is available for many computing platforms, operating systems, use models, and software licenses. Here is a listing of such, grouped in various useful ways.

Acoustic models and speech corpus (compilation)[edit]

The following list presents notable speech recognition software engines with a brief synopsis of characteristics.

Application name Description Open-source License Operating system Programming language Supported language, note Offline or online
CMU Sphinx HMM Yes BSD style Cross-platform Java English, German, French, Mandarin, Russian Offline
HTK HMM neural net No HTK specific Cross-platform C English; version 3.5 released December 2015
Julius HMM trigrams Yes BSD style, non-commercial Cross-platform C Japanese, English; [2] Offline
Kaldi Neural net Yes Apache Cross-platform C++ English
RWTH ASR RWTH Aachen University No RWTH ASR, non-commercial use only Linux, macOS C++ English
Whisper Encoder/decoder transformer Yes MIT license Cross-platform Python (programming language) Multilingual Online (through API) and Offline


Application name Description Open-source License Price Note
Dragon for Mac (discontinued 2018) macOS; by Nuance No Proprietary
Dragon Dictate (discontinued) macOS; by Nuance No Proprietary
MacSpeech Scribe (discontinued) Transcription from recorded text; acquired by Nuance
iListen (discontinued) PowerPC Macintosh; discontinued by MacSpeech; acquired by Nuance
Speakable items Included with macOS
ViaVoice (discontinued) IBM Product; acquired by Nuance
Voice Navigator Original GUI voice control; 1989

Cross-platform web apps based on Chrome[edit]

The following list presents notable speech recognition software that operate in a Chrome browser as web apps. They make use of HTML5 Web-Speech-API.[1]

Application name Description Open-source License Price Note
Speechmatics[2] Cloud based and on-premise automatic speech recognition No Proprietary From £0.06 per minute of audio

Mobile devices and smartphones[edit]

Many mobile phone handsets, including feature phones and smartphones such as iPhones and BlackBerrys, have basic dial-by-voice features built in. Many third-party apps have implemented natural-language speech recognition support, including:

Application name Description Open-source License Price Note
Assistant.ai Assistant for Android, iOS and Windows Phone No Proprietary, freeware Free Discontinued
Dragon Dictation No Proprietary, freeware Free
Google Now Android voice search No Proprietary, freeware Free
Google Voice Search No Proprietary, freeware Free
Microsoft Cortana Microsoft voice search No Proprietary, freeware Free
Siri Personal Assistant Apple's virtual personal assistant No Proprietary, freeware Free
Alexa – Amazon Echo Amazon's personal assistant No Proprietary
SILVIA Android and iOS No


Windows built-in speech recognition[edit]

The Windows Speech Recognition version 8.0 by Microsoft comes built into Windows Vista, Windows 7, Windows 8 and Windows 10. Speech Recognition is available only in English, French, Spanish, German, Japanese, Simplified Chinese, and Traditional Chinese and only in the corresponding version of Windows; meaning you cannot use the speech recognition engine in one language if you use a version of Windows in another language. Windows 7 Ultimate and Windows 8 Pro allow you to change the system language, and therefore change which speech engine is available. Windows Speech Recognition evolved into Cortana (software), a personal assistant included in Windows 10.

Windows 7, 8, 10, 11 third-party speech recognition[edit]

  • Braina – Dictate into third party software and websites,[3] fill web forms and execute vocal commands.[4]
  • Dragon NaturallySpeaking from Nuance Communications – Successor to the older DragonDictate product. Focus on dictation. 64-bit Windows support since version 10.1.
  • Tazti – Create speech command profiles to play PC games and control applications – programs. Create speech commands to open files, folders, webpages, applications. Windows 7, Windows 8 and Windows 8.1 versions.[5]
  • Voice Finger – software that improves the Windows speech recognition system by adding several extensions to it. The software enables controlling the mouse and the keyboard by only using the voice. It is especially useful for aiding users to overcome disabilities or to heal from computer injuries.

Windows XP or 2000 only[edit]

  • Microsoft Speech API – Speech recognition functionality included as part of Microsoft Office and on Tablet PCs running Microsoft Windows XP Tablet PC Edition. It can also be downloaded as part of the Speech SDK 5.1 for Windows applications, but since that is aimed at developers building speech applications, the pure SDK form lacks any user interface, and thus is unsuitable for end users.

Built-in software[edit]

Interactive voice response[edit]

The following are interactive voice response (IVR) systems:

Unix-like x86 and x86-64 speech transcription software[edit]

Discontinued software[edit]

See also[edit]


  1. ^ "Web Speech API Specification". dvcs.w3.org. Archived from the original on 2016-06-21.
  2. ^ Orlowski, Andrew. "Total recog: British AI makes universal speech breakthrough". The Register. Situation Publishing. Retrieved 17 May 2018.
  3. ^ "Speech Recognition Software for Windows PC – Braina". www.brainasoft.com. Archived from the original on 2015-04-07.
  4. ^ "Dynamic Faceting-List of Most 57 Speech Recognition SWs and Web Services". Archived from the original on February 13, 2019. Retrieved February 23, 2019.
  5. ^ O'Neill, Mark (2013-11-06). "Control your PC with these 5 speech recognition programs". PC World. Archived from the original on 2014-01-01. Retrieved 2013-12-30.
  6. ^ "Interactive Voice Response". Genesys. Archived from the original on 2016-10-14.
  7. ^ [1][dead link]
  8. ^ Lavie, A.; Waibel, A.; Levin, L.; Finke, M.; Gates, D.; Gavalda, M.; Zeppenfeld, T.; Zhan, Puming (1 April 1997). "Janus-III: speech-to-speech translation in multiple languages". 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing. Vol. 1. IEEE Xplore. pp. 99–102. CiteSeerX doi:10.1109/ICASSP.1997.599557. ISBN 978-0-8186-7919-3. S2CID 1514209.
  9. ^ "A TensorFlow implementation of Baidu's DeepSpeech architecture". Mozilla. 2017-12-05. Retrieved 2017-12-05.
  10. ^ "IBM - Embedded ViaVoice - Embedded ViaVoice - Software". Archived from the original on 2010-08-08. Retrieved 2010-06-29.
  11. ^ "Nuance product support for Microsoft Windows 7". Nuance Communications, Customer Help. Retrieved 2019-03-16.
  12. ^ "ViaVoice for Mac OS X on Intel Chipset". Nuance Communications, Customer Help. Retrieved 2019-03-16.