pulse code modulation
21Equivalent pulse code modulation noise — In telecommunication, equivalent pulse code modulation noise (PCM) is the amount of thermal noise power on a frequency division multiplexing (FDM) or wire channel necessary to approximate the same judgment of speech quality created by quantizing… …
22Linear pulse code modulation — (LPCM) est une méthode pour coder l information audio de façon numérique. Le terme PCM et LPCM définissent le nom du codec contenu dans différents conteneurs audio tel que WAV et AIFF. LPCM est un format de codage sans perte décrit/utilisé dans… …
23Differential Pulse Code Modulation — [Abk. DPCM, dt. »differenzielle Pulscodemodulation«], eine Methode der digitalen Aufzeichnung von Tonsignalen (PCM Verfahren), bei der nicht eine Reihe von Absolutwerten übermittelt werden, sondern nur ein einziger Absolutwert zu Beginn, und… …
24Linear Pulse Code Modulation — Linear Pulse Code Modulation, LPCM …
25adaptive differential pulse code modulation — skirtuminis garso skaitmeninimas statusas T sritis informatika apibrėžtis Garso skaitmeninimas, kai koduojami skaitmeninamos garso atkarpos parametrų skirtumai (ne absoliučios vertės) lyginant su ankstesnės atkarpos parametrais. Taip pasiekiamas… …
26Pulse-density modulation — Pulse density modulation, or PDM, is a form of modulation used to represent an analog signal in the digital domain. In a PDM signal, specific amplitude values are not encoded into pulses as they would be in PCM. Instead it is the relative density …
27Pulse-position modulation — is a form of signal modulation in which M message bits are encoded by transmitting asingle pulse in one of 2^M possible time shifts. This is repeated every T seconds, such thatthe transmitted bit rate is M/T bits per second. It is primarily… …
28Pulse-width modulation — (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. PrinciplePulse width modulation uses a square wave whose pulse… …
29Pulse-amplitude modulation — Principle of PAM: (1) original signal, (2) PAM signal, (a) amplitude of signal, (b) time Pulse amplitude modulation, acronym PAM, is a form of signal modulation where the message information is encoded in the amplitude of a series of signal… …
30pulse code modulation — noun Electronics a technique of modulating the amplitude of an analogue signal to represent digital information as a series of pulses …
