voice coding

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• Voice activity detection — (also known as speech activity detection or, more simply, speech detection) is an algorithm used in speech processing wherein the presence or absence of human speech is detected in regions of audio. The main uses of VAD are in speech coding and… …   Wikipedia

• Coding theory — is the study of the properties of codes and their fitness for a specific application. Codes are used for data compression, cryptography, error correction and more recently also for network coding. Codes are studied by various scientific… …   Wikipedia

• Voice engine — A voice engine is a software subsystem for bidirectional audio communication, typically used as part of a telecommunications system to simulate a telephone. It functions like a data pump for audio data, specifically voice data. The voice engine… …   Wikipedia

• voice excited linear coding — tiesinis balsu valdomas kodavimas statusas T sritis automatika atitikmenys: angl. voice excited linear coding vok. lineare Kodierung mit Sprachregelung, f rus. линейное кодирование с речевым управлением, n pranc. codage linéaire actionné par la… …   Automatikos terminų žodynas

• adaptive transform coding — (ATC)    A voice coding technique used between 9.6K bps and 32K bps …   IT glossary of terms, acronyms and abbreviations

• Secure voice — (alternatively secure speech or ciphony) is a term in cryptography for the encryption of voice communication over a range of communication types such as radio, telephone or IP. Contents 1 History 2 Analog Secure Voice technologies 3 Di …   Wikipedia

• Linear predictive coding — (LPC) is a tool used mostly in audio signal processing and speech processing for representing the spectral envelope of a digital signal of speech in compressed form, using the information of a linear predictive model. It is one of the most… …   Wikipedia

• Speech coding — is the application of data compression of digital audio signals containing speech. Speech coding uses speech specific parameter estimation using audio signal processing techniques to model the speech signal, combined with generic data compression …   Wikipedia

• Robotic voice effects — Robot voices became a recurring element in popular music during the late twentieth century, and several methods of producing variations on this effect have arisen. Though the vocoder is by far the best known, the following other pieces of music… …   Wikipedia

• Long-term Predicted Excitation Coding — In digital signal processing, Long term Predicted Excitation Coding (LPEC) is a codec developed by Sony for voice recording. It is the standard codec in several Sony digital voice recorders. The codec is proprietary and no developer details are… …   Wikipedia

• Network Voice Protocol — NVP redirects here. For other uses, see NVP (disambiguation). The Network Voice Protocol (NVP) was a pioneering computer network protocol for transporting human speech over packetized communications networks. It was an early example of Voice over …   Wikipedia