Pulse-code modulation
Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps.
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- Attribute100024264
- Communication100033020
- Format106636806
- Information106634376
- Manner104928903
- Message106598915
- Property104916342
- Signal106791372
- software
- Thing
- WikicatArchiveFormats
- WikicatComputerFileFormats
- WikicatOpenFormats
- WikicatQuantizedRadioModulationModes
- WikicatRadioModulationModes
- WikicatTelephonySignals
- Comment
- enPulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps.
- ContainedBy
- enAudio CD, AES3, WAV, AIFF, AU, M2TS, VOB, and many others
- Depiction
- Extension
- en.L16, .WAV, .AIFF, .AU, .PCM
- Free
- enYes
- Has abstract
- enPulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps. Linear pulse-code modulation (LPCM) is a specific type of PCM in which the quantization levels are linearly uniform. This is in contrast to PCM encodings in which quantization levels vary as a function of amplitude (as with the A-law algorithm or the μ-law algorithm). Though PCM is a more general term, it is often used to describe data encoded as LPCM. A PCM stream has two basic properties that determine the stream's fidelity to the original analog signal: the sampling rate, which is the number of times per second that samples are taken; and the bit depth, which determines the number of possible digital values that can be used to represent each sample.
- Hypernym
- Method
- Is primary topic of
- Pulse-code modulation
- Label
- enPulse-code modulation
- Link from a Wikipage to an external page
- www.loc.gov/preservation/digital/formats/fdd/fdd000011.shtml
- www.loc.gov/preservation/digital/formats/fdd/fdd000016.shtml
- www.ralph-miller.org/
- wiki.multimedia.cx/index.php%3Ftitle=PCM
- www.tactilemedia.com/info/MCI_Control_Info.html
- archive.org/details/principlesofdigi00pohl
- tools.ietf.org/html/rfc3190
- tools.ietf.org/html/rfc3551%23page-27
- tools.ietf.org/html/rfc4856
- Link from a Wikipage to another Wikipage
- 44,100 Hz
- 4ESS switch
- Adaptive differential pulse-code modulation
- AES3
- AIFF
- A-law
- Alec Reeves
- Allies of World War II
- Alternate mark inversion
- Amplitude
- Analog signal
- Analog-to-digital converter
- Audio bit depth
- Audio codecs
- Audio coding formats
- Audio compression (data)
- Audio file format
- Au file format
- AVCHD
- Bartlane cable picture transmission system
- Bell Labs
- Bernard M. Oliver
- Beta encoder
- Bipolar code
- Blu-ray Disc
- Bop till You Drop
- Category:Audio codecs
- Category:Computer file formats
- Category:Digital audio
- Category:Digital audio recording
- Category:Multiplexing
- Category:Quantized radio modulation modes
- Category:Telephony signals
- Cathode ray tube
- Cell phones
- Claude Shannon
- CMOS
- Commutator (electric)
- Compact disc
- Compander
- Cordless telephones
- DATAR
- Data stream
- David A. Hodges
- Dbx (noise reduction)
- DC bias
- Delta modulation
- Denon
- Digital audio
- Digital container format
- Digital signal (signal processing)
- Digital telephony
- Digital-to-analog converter
- Digital transmission
- Digitized
- Douglas Whalen
- DPCM
- DS0
- DV
- DVD
- Electric current
- Electronic switching system
- Emphasis (telecommunications)
- Equivalent pulse code modulation noise
- Facsimile machine
- Ferranti-Packard
- File:Pcm.svg
- File:US02632058 Gray.png
- Framing bit
- Franklin S. Cooper
- Frequency-division multiplexing
- G.711
- G.726
- Gray code
- HDMI
- Hertz
- Integrated circuit
- Integrated services digital network
- International Telephone and Telegraph
- James L. Flanagan
- John R. Pierce
- LaserDisc
- Linear predictive coding
- Linear pulse-code modulation
- M2TS
- Metal–oxide–semiconductor
- Mobile phones
- Modems
- Modified discrete cosine transform
- Moses G. Farmer
- Mu-law algorithm
- Multiplexing
- National Inventors Hall of Fame
- NHK
- Nikil Jayant
- Non-return-to-zero
- Nyquist frequency
- Nyquist–Shannon sampling theorem
- Oscilloscope
- PDIF
- Philip Rubin
- Plate electrode
- Pseudorandom
- Public switched telephone network
- Pulse-position modulation
- Pulse-width modulation
- Quantization (image processing)
- Quantization (signal processing)
- Quantization error
- Raw audio format
- Reconstruction filter
- Red Book (audio CD standard)
- Return-to-zero
- RF64
- Run-length limited
- Sample (signal)
- Samples per second
- Sampling (signal processing)
- Sampling rate
- Scrambler
- Signal compression
- Signal-to-noise ratio
- Signal-to-quantization-noise ratio
- SIGSALY
- Silicon-gate
- Sine wave
- Speech
- Stereo
- Stream (computing)
- Streaming media
- Switched capacitor
- T-carrier
- Telecommunication network
- Telecommunications Research Establishment
- Telegraphy
- Telephone
- Telephone exchanges
- Telephony
- Time-division multiplexing
- Very-large-scale integration
- Video tape recorder
- VOB
- Voice frequency
- Voice over IP
- Voltage
- WAV
- Western Electric
- World War II
- Μ-law
- Magic
- enVaries
- Mime
- enaudio/L16, audio/L8, audio/L20, audio/L24
- Name
- enPulse-code modulation
- Open
- enYes
- SameAs
- Darbe kod modülasyonu
- Impulskodigo-modulado
- Impulsskoodmodulatsioon
- Ku65
- m.0bf86
- Modulação por código de pulsos
- Modulación por código de pulsos
- Modulación por impulsos codificados
- Modulació per impulsos codificats
- Modulasi kode pulsa
- Modulasi kode pulsa
- Modulation par impulsions et codage
- Modulazione a impulsi codificati
- Modulimi me kode pulsi
- PCM
- PCM
- PCM
- PCM
- Pulscodemodulatie
- Puls-Code-Modulation
- Pulse Code Modulation
- Pulse-code modulation
- Pulskodsmodulering
- Pulsno-kodna modulacija
- Pulssikoodimodulaatio
- Pulzná kódová modulácia
- Pulzně kódová modulace
- Q13043846
- Імпульсно-кодова модуляція
- Импулсна кодна модулација
- Импулсно-кодна модулација
- Импулсно-кодова модулация
- Импульсно-кодовая модуляция
- אפנון דופק מקודד
- تضمين نبضي مرمز
- مدولاسیون کد پالس
- துடிப்பு குறி பண்பேற்றம்
- การกล้ำรหัสของพัลส์
- パルス符号変調
- 脈衝編碼調變
- 펄스 부호 변조
- SeeAlso
- T-carrier
- Subject
- Category:Audio codecs
- Category:Computer file formats
- Category:Digital audio
- Category:Digital audio recording
- Category:Multiplexing
- Category:Quantized radio modulation modes
- Category:Telephony signals
- Thumbnail
- Type
- enUncompressed audio
- TypeCode
- en"AIFF" for L16, none
- WasDerivedFrom
- Pulse-code modulation?oldid=1118539747&ns=0
- WikiPageLength
- 33391
- Wikipage page ID
- 25513330
- Wikipage revision ID
- 1118539747
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- Template:Authority control
- Template:Bit-encoding
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- Template:Infobox file format
- Template:Main
- Template:Modulation techniques
- Template:Redirect
- Template:Reflist
- Template:See also
- Template:Short description
- Template:Telecommunications
- Template:Use mdy dates
- Template:US patent
