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eSpeak. eSpeak is a free and open-source, cross-platform, compact, software speech synthesizer. It uses a formant synthesis method, providing many languages in a relatively small file size. eSpeakNG (Next Generation) is a continuation of the original developer's project with more feedback from native speakers. Because of its small size and many ...
TensorFlow is Google Brain's second-generation system. Version 1.0.0 was released on February 11, 2017. [15] While the reference implementation runs on single devices, TensorFlow can run on multiple CPUs and GPUs (with optional CUDA and SYCL extensions for general-purpose computing on graphics processing units). [16]
Microsoft Speech API. The Speech Application Programming Interface or SAPI is an API developed by Microsoft to allow the use of speech recognition and speech synthesis within Windows applications. To date, a number of versions of the API have been released, which have shipped either as part of a Speech SDK or as part of the Windows OS itself.
Voice activity detection (VAD), also known as speech activity detection or speech detection, is the detection of the presence or absence of human speech, used in speech processing. [1] The main uses of VAD are in speaker diarization, speech coding and speech recognition. [2] It can facilitate speech processing, and can also be used to ...
Speaker recognition is the identification of a person from characteristics of voices. [1] It is used to answer the question "Who is speaking?" The term voice recognition[2][3][4][5][6] can refer to speaker recognition or speech recognition. Speaker verification (also called speaker authentication) contrasts with identification, and speaker ...
Kaldi is an open-source speech recognition toolkit written in C++ for speech recognition and signal processing, freely available under the Apache License v2.0.. Kaldi aims to provide software that is flexible and extensible, [2] and is intended for use by automatic speech recognition (ASR) researchers for building a recognition system.
Speex is an audio compression codec specifically tuned for the reproduction of human speech and also a free software speech codec that may be used on voice over IP applications and podcasts. [6] It is based on the code excited linear prediction speech coding algorithm. [7] Its creators claim Speex to be free of any patent restrictions and it is ...
A hidden text-to-speech voice in Windows 10 called Microsoft Eva Mobile is present within the system. Users can download a pre-packaged registry file from the windowsreport.com website. Microsoft Eva is believed to be the early voice for Cortana until Microsoft replaced her with the voice of Jen Taylor in most areas.