pulse code modulation

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pulse code modulation:

see modulationmodulation,
in communications, process in which some characteristic of a wave (the carrier wave) is made to vary in accordance with an information-bearing signal wave (the modulating wave); demodulation is the process by which the original signal is recovered from the wave
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Pulse Code Modulation

(PCM) A method by which an audio signal is represented as digital data.

Virtually all digital audio systems use PCM, including, CD, DAT, F1 format, 1630 format, DASH, DCC, and MD. Many people get confused because "PCM" is also slang for Sony's F1 format which stores PCM digital audio on videotape.
References in periodicals archive ?
This is the first of several anticipated patents covering Townshend's inventions embodying the pulse code modulation technology basic to making a V.
Secure Adaptive Differential Pulse Code Modulation (ADPCM) voice code combination
Tenders are invited for Purchase Of Machinery/Equipment 1-TDM Pulse Code Modulation & demodulation Training kit Module with Hamming code & Parity & software for Demonstration of PCM technique Training Kits should have Separate Boards for transmitter & receiver PCM Modulation Transmitter
Mullin said that this achieves "unprecedented sound quality," without the decimation and additional stages associated with conventional Pulse Code Modulation technology.
Tenders are invited for Supply Of Electronics Equipments Differential pulse code modulation and demodulation trainermodulator converts analog signal to 8 bit digital format using adc.
Through the increased spectral efficiency provided by Vyyo's integration of Adaptive Differential Pulse Code Modulation (ADPCM), cable operators who use the T1 products in conjunction with Vyyo's spectrum overlay solution can deploy a maximum of 360 voice T1s per node.
1) ADPCM: Adaptive Differential Pulse Code Modulation
As part of its efforts to create the most effective wireless audio solutions for the home theater market, MMC is using TI's TAS5001 PWM processor and TAS5122 power stage controller in its reference design to prevent any degradation of the linear pulse code modulation (PCM) transmission.
With AuriStream CSR has introduced Adaptive Differential Pulse Code Modulation (ADPCM) as an enhanced voice coding method, since it performs the same function at half the rate of CVSD (ADPCM scans at 32Kbps, CVSD 64Kbps) saving up to half the Bluetooth power on the handset; ADPCM is more accurate, and provides a much higher voice quality.
Converged solutions or IP PBX - The converged system is an integrated circuit-switched and packet-switched system that has a proprietary common control complex and supports both pulse code modulation (PCM)-based digital stations and IP phones.