pulse-code+modulation-frequency+modulation

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• Pulse-code modulation — PCM redirects here. For other uses, see PCM (disambiguation). Pulse code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form for digital audio in computers and various Blu ray, Compact Disc and …   Wikipedia

• Pulse Code Modulation — Die Puls Code Modulation ist ein Verfahren, um ein analoges Signal in ein digitales Signal bzw. Binärcode umzusetzen. Es wird für Audio und Video Signale verwendet. Die Umsetzung erfolgt in folgenden Schritten: Abtastung des analogen Signals… …   Deutsch Wikipedia

• pulse-code modulation — /puls kohd /, Telecommunications. a form of modulation that transforms a wave form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a… …   Useful english dictionary

• Linear pulse code modulation — (LPCM) is a method of encoding audio information digitally. The term also refers collectively to formats using this method of encoding. The term PCM, though strictly more general, is often used to describe data encoded as LPCM. Description LPCM… …   Wikipedia

• Equivalent 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… …   Wikipedia

• Pulse-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… …   Wikipedia

• Pulse-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 …   Wikipedia

• Pulse-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… …   Wikipedia

• Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e …   Wikipedia

• Modulation — Mo|du|la|ti|on 〈f. 20〉 1. Abwandlung 2. 〈Mus.〉 2.1 Übergang von einer Tonart in eine andere 2.2 Abstufung der Tonstärke u. der Klangfarbe 3. 〈El.〉 Aufprägen von Signalen auf eine Trägerwelle; →a. Amplitudenmodulation, Frequenzmodulation [<lat …   Universal-Lexikon

• modulation — /moj euh lay sheuhn, mod yeuh /, n. 1. the act of modulating. 2. the state of being modulated. 3. Music. transition from one key to another. 4. Gram. a. the use of a particular distribution of stress or pitch in a construction, as the use of… …   Universalium