A digital technique that involves sampling an analog signal at regular intervals and coding the measured amplitude into a series of binary values, which are transmitted by modulation of a pulsed, or intermittent, carrier. It is the standard modulation technique used in telecommunications transmission. See modulation.
Phase contrast microscopy. An optical microscope method, which does not distinguish fiber types, used in conjunction with asbestos air sampling to count the number of fibers present.
ulse ode odulation; a communication technique where the information to be sent is converted into binary numbers which are then transmitted on the signal.
This 2-channel digital audio standard is simpler than Dolby Digital.
Digital modulation method for transmitting analog data. PCM signals are binary. These signals can represent any analog data with only two states, logic 0 and logic 1.
A modulation scheme that samples the information signals and transmits a series of coded pulses to represent the data.
(Pulse Code Mulation): PCM is the basic method of encoding an analog voice signal into digital form using8-bit samples. Defined by the ITU standard G.711.
Digital audio recording format used since the late 1970s. PCM simultaneously captures all bits of a given word length (8 to 48-bits) at various standardized sampling frequencies (11kHz to 192kHz). The standard CD, co-developed by Philips and Sony, uses a 16-bit word length and a sampling rate of 44.1kHz).
A digital HiFi stereo sound recording system found on a few Hi8 camcorders. As it is recorded on a separate section of tape, using the helical scan system, it can be audio dubbed. Can carry lots of seperate tracks at once enabling multi language dubs for example.
ulse ode odulation. A type of digital output used on audio sources to transfer high quality digital audio information to an amplifier with a suitable digital DAC. It offers improvements over normal stereo phono interconnects. PCM is the method used to encode audio data onto CD.
A pulse modulation technique in which sample pulses of varied amplitudes from the analog signal are converted at regular intervals to a digital code to represent the absolute amplitude of each pulse. The analog signal is sampled at more than twice its frequency to preserve fidelity.
Acronym for linear audio Pulse Code Modulation track incorporated on DVD. The high concentration of digital audio information mastered on a DVD provides audio quality that is superior to compact disc. DVD can offer variable Quantization to 24 bit, a sampling frequency of 96db and a dynamic range of 138db.
Delivers CD quality sound on a separate linear sound track. Unlike the hi-fi track, this track can be changed. (See Audio Dub).
Pulse Code Modulation. The type of modulation used in digital transmission.
Acronym for Pulse-Coded Modulation, a means of converting analog to digital form.
Pulse Code Modulation. Conversion method for transforming analogue audio samples into their digital equivalent, so that they can be processed by computers, DSP-chips etc. The number of bits to express the amplitude value depends on the required signal to noise (S/N) ratio. For audio CD's, 16 bits are used to represent a sample, resulting in S/N of 96 dB (20*log216). The frequency with which the amplitude is sampled and converted (i.e. the samplerate) is depends desired bandwidth. For audio CD's the samplerate is 44.1 kHz, resulting in a bandwidth of 20 kHz. Standard uncompressed PCM (as used for audio CD's) is also referred to as linear PCM. An often encountered compressed equivalent is ADPCM, which is used for CD-I and CD-ROM XA disks.
pulse code modulation. A technique for digitizing audio into an uncompressed format by assigning a value to the amplitude of the signal at fixed intervals. RGB A color model that describes color information in terms of the red (R), green (G), and blue (B) intensities that make up the color. sampling rate The frequency of sampling. The higher the sampling rate (that is, the more samples taken per unit of time), the more closely the digitized result resembles the original.
Pulse Code modulation. Aa way to convert sound or analog information to binary information (0s and 1s) by taking samples of the sound and record the resulting number as binary information. Used on all CDs, DVD-Audio, and just about every other digital audio format. It can sometimes be found on DVD-Video.
Short for "Pulse Code Modulation", PCM is a digital system for transporting analog audio data.
One of four sound formats supported by DVD-Video (others are Dolby Digital, DTS and MPEG-Audio). PCM (pulse code modulation) is the same format as used on music CDs and only supports Mono or Stereo soundtracks. When played, discretestereo sound will be heard from the front right and front left speakers. All DVD players support PCM.
pulse code modulated
Pulse Code Modulation, an uncompressed digital audio format; used by CD-Audio, amongst others.
Pulse Code Modulation. A type of modulation that is used in analog to digital conversion.
Ref. Pulse Code Modulation
See Pulse Code Modulation.
Pulse Code Modulation, an encode method of converting an analog signal to digital samples. The encoding can be Linear or Non-Linear (like u-law or A-law weighting). For example, if 8 bit linear PCM is used, 0 Volts could be encoded as 0, and 5 Volts could be encoded as 255 and each step would be 19.6 mV. Then 2.5 Volts would be encoded as 2.5 V / 19.6 mV = 128
Pulse Code Modulation, Refers to an optical or coaxial digital connection carrying CD-type and other low-resolution audio. PCM is a type of digital audio that can be low-resolution (CD) or high-resolution (DVD-Audio).
Pulse Code Modulation. This is a binary digital signal format used for digitizing analog data.
The analog-to-digital converter used for recording traditional CDs.
Pulse Code Modulation. PCM is how digital audio is typically represented in a computer. The audio signal is represented by samples of its instantaneous amplitude taken at regular intervals (the sample period which is the inverse of the sampling frequency). The representation of each sample can take several forms. On CDs, a 16-bit integer is used. Plain old telephony uses 8 bits with a non-linear coding (either A-law or u-law). Studio equipment often used 24 or more bits. Floating point representation is also possible. Alsa can use the following formats: S8 U8 S16_LE S16_BE U16_LE U16_BE S24_LE S24_BE U24_LE U24_BE S32_LE S32_BE U32_LE U32_BE FLOAT_LE FLOAT_BE FLOAT64_LE FLOAT64_BE IEC958_SUBFRAME_LE IEC958_SUBFRAME_BE MU_LAW A_LAW IMA_ADPCM MPEG GSM SPECIAL S24_3LE S24_3BE U24_3LE U24_3BE S20_3LE S20_3BE U20_3LE U20_3BE S18_3LE S18_3BE U18_3LE Other representations than PCM are possible. For example it is not necessary to have a one-to-one correspondance between the samples of the audio signal and the numbers in the data stream. (Example: mp3)
Pulse Code Modulation. Pioneering form of digital recording.
Pulse code modulation. A modulation technique in which the signal being transmitted is sampled at regular intervals to determine its magnitude. The magnitude is converted to a digital pulse for transmission.
Pulse Code Modulation, a way of encoding and decoding sound digitally and very accurately.
One of the most common ways of converting an analog signal to a digital signal. This is done by sampling the signal and coding the sample. It usually samples at 8,000 times per second; each sampling representing 8bits. This produces a transmission rate of 641Kbit/s, with the traffic on the line in interleaved data format. At the receiving end, the interleaved signals are separated and converted back to analog.
Pulse code modulation. A method by which sound is digitally recorded and reproduced. Sounds are reproduced by modulating (changing) the playback rate and amplitude of the sampled (stored) digital pulses (waves). This enables the PCM sound to be reproduced with a varying pitch and amplitude.
Pulse Code Modulation. A common form of encoding and transmission in which analogue speech signals are converted to digital format for the purpose of multiplexing and transmission over distance. PCM is commonly used in multi-circuit inter-exchange trunk system, or "subscriber carrier" systems in which a number of telephone subscribers along a route are served from the same cable.
Pulse Code Modulation. An uncompressed, digitally coded representation of an analog signal. The waveform is sampled at regular intervals and a series of pulses in coded form are generated to represent the amplitude.
Pulse Code Modulation. A modulation code in which analog audio is sampled at 44.1KHz into a digital format.
Stands for Pulse Code Modulation and is a way of digitally encoding data. Specifically it is a system used to record high quality digital audio on to the Betamax video format. The picture if viewed on a television would show black and white dancing around in an almost static interference type pattern. When connected to a PCM unit, this image is converted to a digital audio stream. A number of Betamax units came with a switch at the rear to allow the unit to work more efficiently when recording a digital audio "picture", the switch is used to remove the drop out compensator circuitry on playback to allow the PCM unit to carry out its own error correction on the signal without the player altering the signal. For normal video playback, the should not be switched on. See also the PCM feature for further information.
PCM stands for Pulse Code Modulation and actually is still FM. The difference between PCM and FM is that the control information is sent in the form of a digital data pulse [word] rather than just an analog signal pulse. I suppose you could compare this to your cassette audio tape and an audio CD. FM would be the tape and PCM the CD. Click Circuitry to read more about PCM and radio controls.
Pulse code modulation. Method of recording high quality, digital sound on 8mm and Hi8 tapes.
Pulse Code Modulation, the original strategy employed by carriers to convert analog voice information to digital form. PCM generates a 64 kbps signal (DSO).
Pulse Code Modulation, the control information is in the form of a digital word rather than just a pulse width as in standard AM or FM. Using PCM adds additional protection against interference from various sources.
Pulse Code Modulation. A generic term for digital transmission.
Pulse Code Modulation. This is the uncompressed format used by a CD player and provides sonically superior performance to any compressed format such as MP3.
Pulse Code Modulation. This is a time division modulation technique in which analog signals are transformed into quantized digital signals.
Pulse Coded Modulation. Transmission of analog information in digital form through sampling and encoding the samples with a fixed number of bits.
pulse code modulation. A common method for digitizing voice signals. The bandwidth required for a single digitized voice channel is 64 kilobits per second.
Pulse Code Modulation is a method of sampling an analog signal.
Pulse Code Modulation. A scheme for encoding audio data as a series of pulses. Each pulse defines a transition from binary one to binary zero.
Pulse Code Modulation. A method of encoding an audio signal in digital format.
Pulse code modulation. The process that samples quantizes and codes the modulating analog signal into digital bit stream.
Pulse Code Modulation. The representation of continuous signals using discrete pulses (for instance, the digital representation of an analog waveform). The Signal on Digital Audio discs is encoded in PCM. (7/96)
Pulse Code Modulation. The standard playback or recording system employed by the CD and most professional-grade digital recorders, including DAT. In contrast to digital data-reduction systems, PCM recording systems allow 100 percent of the material recorded to be played back.
Edit / Pulse Code Modulation - A technique for converting analog speech into a digital data stream. See Also: codec G.711 G.729
Pulse Code Modulation The most common method of transforming an incoming analog signal into a noise-free, digital equivalent.
Pulse Code Modulation is the name of the G.711 voice codec algorithm that is used to convert analog voice into digital data. It converts analog voice into 8,000 8-bit data samples every second. It has two implementations; A-law used throughout most of the world and mu-law used throughout North America and Japan.
Pulse Code Modulation -- Digital recordings of real instruments or percussion sound sources.
Pulse Code Modulation. The effect of sampling an analog signal.
Powertrain control module. See Electronic Control Unit (ECU).
Protection Circuit Module
A method of encoding information in a signal by varying the amplitude of pulses. The most common method of encoding an analog signal into a digital bit stream, usually 16 bits per sample.
(Pulse Code Modulation) - The technology used to convert analog signals to digital coding and back again (demodulation). PCM breaks an analog signal into quantified bits based on a consistent unit of time and transmits them to the receiver. PCM is used in many cordless devices (cordless phones, for instance), in dial-up modems and on T-Carrier phone lines.
Pulse Code Modulation. A means of digital encoding.
Pulse Code Modulation. A technique used in DSP voice boards for reducing voice data storage requirements. Dialogic supports either mu-law PCM, which is used in North America and Japan, or A-law PCM, which is used in the rest of the world.
Pulse code modulation. Voice digitization scheme that samples an analog voice signal 8000 times per second and converts each sample to an 8-bit code, yielding a digital voice rate of 64 kbps, allowing 30 timeslots on a 2-Mbps line; defined in ITU (ex-CCITT) Recommendation G.711.
pulse code modulation. A method of representing an audio signal as a series of digital samples. Circuitry found in every audio and video component that converts 60 Hz alternating current from the wall outlet into direct current that supplies the device's circuitry.
A signal sampling and transmission standard which is used by numerous digital audio formats such as CD, MiniDisc, and DAT. Standard CDs employ PCM at a sampling rate of 44.1KHz, encoded at 16-bit resolution.
Pulse Code Modulation. PCM is a digital scheme for transmitting analog data. The signals in PCM are binary; that is, there are only two possible states, represented by logic 1 (high) and logic 0 (low). This is true no matter how complex the analog waveform happens to be. Using PCM, it is possible to digitize all forms of analog data, including full-motion video, voices, music, etc.
Pulse Code Modulation, this refers to digital coding of analog signals
Powertrain Control Module, also ECU or ECM for Electronic Control Unit or Module The computer which monitors sensor inputs and calculates the necessary output signals to the engine control systems. It also checks for readings outside of normal parameters a records trouble codes for these faults.
( pulse code modulation) The most common encoding scheme for storing digital data... ( more)
Pulse Codec Modulation. (Modulación por Impulsos Codificados.)
Pulse code modulation. The most frequently used method of convening analog signals into digital bits.
pulse code modulation. Method of sampling information signals at regular intervals and transmitting the samples as a series of pulses in coded form which represent the amplitude of the information signal at that time.
Pulse Code Modulation. The most common way of converting an analogue source into a digital form. This works by taking samples of the continuously varying analogue signal at regular intervals. At each sampling point a number is generated to represent the size of the signal.
Powertrain Control Module. See ECM.
(Pulse Code Modulation) A process of converting an analogue signal into the digital domain. The analogue signal is first sampled, then quantized and finally encoded into a bit stream.
Refers to Pulse-Code Modulation.
With a Pulse Coded Modulat ion system the signal is transmitted using FM as a base, but is digitally encoded with a signal consisting of 1024 encoded positions ensuring totally accurate interpretation of the transmitted signal at the receiver. This in turn ensures that the servo moves to a precise position. PCM systems also include as standard fail-safe options.
A technique where analog signals, such as voice, is converted into a digital signal by sampling the signal's amplitude and expressing the different amplitudes as a binary number. The sampling rate must be twice the highest frequency in the signal.
Pulse Code Modulation: a sampling technique for digitizing analog signals, especially audio signals. PCM is used with T-1 and T-3 carrier systems. These carrier systems combine the PCM signals from many lines and transmit them over a single cable or other medium.
Pulse Code Modulation. The internationally accepted Codex used by telephone companies to translate between the 56 and 64Kbps digital signaling technologies and the analog signals sent across POTS telephone lines. PCM codes are seven or eight bits in size, meaning each code byte has 128 or 256 possible values. (North American POTS connections generally only use 7 bit codes.) Or a commonly employed algorithm to digitize an analog signal (such as a human voice) into a digital bit stream using simple analog to digital conversion techniques.
The process of taking samples of an analog sound and storing the results as binary data.
Pulse Code Modulation. A process in which a signal is sampled,and the magnitude of each sample with respect to a fixed reference is quantized and converted by coding to a digital signal. This is a method used to convert analog voice signals to digital voice signals.
Pulse Code Modulation. Method of transmitting data in which signal are sampled and converted to digital words that are then transmitted serially, typically as 8-bit.
Pulse Code Modulation. The most common method of encoding an analog voice signal into a digital bit stream.
Pulse code modulation. A method of coding whereby a signal is represented by a discrete-sampled series.
Pulse Code Modulation. Method of modulation in which signals are sampled and converted to digital words that are then transmitted serially. Most PCM systems use either 7 or 8-bit binary codes. There are, however, several standards for PCM coding: most common are ?-Law in North America and A-Law in Europe (both based on logarithmic conversion of the signal).
Powertrain Control Module (EEC).
Standard Windows WAV format for noncompressed audio files. Pulse Code Modulation (PCM) is the standard method of digitally encoding audio. It is the basic uncompressed data format used in file types such as Windows .wav.
PCM (pulse code modulation) is a digital process for transmitting analogue data. The signals in PCM are binary; i.e. either represented by logic 1 (high) or logic 0 (low). Using PCM, it is possible to digitise all forms of analogue data, including full-motion video, voices, music, telemetry, and virtual reality (VR).
Pulse code modulation. An uncompressed wave data format in which each value represents the amplitude of the signal at the time of sampling.
(Pulse Code Modulation) is a class of digital baseband signals transformed to pulse waveforms. The timing and direction of level transitions in the waveform contain the digital information.
Pulse Code Modulation; code where input signal is represented by a given number of fixed-width samples per second.
The disc contains an uncompressed digital stereo soundtrack.
Pulse-code modulation. A method of encoding information in a signal by varying the amplitude of pulses. Unlike pulse amplitude modulation, in which pulse amplitude can vary continuously, PCM limits pulse amplitudes to several predefined values.
Pulse-Code Modulation. This is a particular way of digitizing an analog signal. In 01-speak, this is a ROM that has sampled sounds stored in it. There is internal PCM memory that is permanently installed at the factory. There is also a slot in the back of the 01 for PCM cards that have different Multi-Sounds.
Power control module. A module or computer used in an electronic transmission to aid in control of the shift solenoids.
Pulse Code Modulation - A method which samples and encodes signals in digital form making the coded signal less suceptible to noise and distortion.
ulse ode odulation is used to sample analog audio into digital code (generally, 8000 samples/sec), and to structure the analog signal that is produced by the digital-analogue converter of a CD-Audio player. The digital audio string is often referred to as Linear PCM, or also as just PCM.
Pulse Code Modulation. A widely used method of converting analogue telephony signals into digital form.
Pulse Code Modulation, the most common method of encoding an analogue audio signal into a digital bit stream.
Pulse Code Modulation NG SDH Forum
Pulse code modulation. A communication system technique of carrying information by converting an analog signal to digital form.
An uncompressed digital soundtrack offers the capacity for either standard left and right stereo playback or a mono soundtrack.
A procedure for adapting an analog signal (such as voice) into a 64 kbps digital bit stream for transmission.
"Pulse Code Modulation," a method used for recording and storing samples in many audio formats.
Pulse Code Modulation. Sampling an analogue signal at a regular rate and converting each sample to a digital code.
pulse code modulation. A technique for converting an analog signal with an infinite number of possible values into discrete binary digital words that have a finite number of values. The waveform is sampled, then the sample is quantized into PCM codes.
Pulse Code Modulation. The form of modulation in which the information signals are sampled at regular intervals and a series of pulses in coded form are transmitted representing the amplitude of the information signal at that time. For T1 applications, a method of converting successive (every 125 us) analog samples of a voice waveform to successive 8-bit codes, to be transmitted in an 8-bit timeslot of a T1 frame. In "robbed bit" frames, only the most significant 7 bits are used to encode the sample. The total bit rate for such a channel is (8000 samples/sec) x (8-bits/sample) = 64000 bits/sec.
A scheme used to convert an analog voice signal into a digital bitstream for transmission. Digital transmission technique that involves sampling of an analog information signal at regular time intervals and coding, the measured amplitude into a series of binary values, which are transmitted by modulation of a pulsed, or intermittent, carrier. A common method of speech digitizing by using 8-bit code words, or samples, and a sampling rate of 8,000 times per second.
( Pulse Code Modulation) Standard method for coding audio.
Abbreviation for pulse code modulation, a way of digitally recording an audio signal. Used in most 8mm decks and in some high-end VHS and S-VHS decks.
Pulse Code Modulation; the standard digital voice format at 64kbit/s PCMCIA
Pulse code modulation -- a standard method of encoding analog audio signals in digital form.
(Pulse Code Modulation) The digital coding system for analogue waveforms used for CD and DVD. Quality is limited by the oversample and bit rates used - CD is 44.1kHz/16-bit while DVD-A is capable of 192kHz/24-bit. SACD's DSD technology offers a bit rate of 2.8224 Mb/s, which is 64 times CD's sampling rate.
Pulse Code Modulation. Standard format for CD/DVD audio, PCM is an uncompressed digital representation of an analog signal.
The most common method for converting analog voice signals into digital signals, for use in transmission over digital phone lines (such as T-1s) and in digital recording of voice.
Pulse Code Modulation. Coding system for digital audio transmission.
pulse code modulation) A conversion method in which digital words in a bit stream represent samples of analog information. The basis of most digital audio systems.