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Data compression approach allowing perfect reconstruction of the original data
Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss
Lossless_compression
Lossless Transform Audio Compression (LTAC) is a compression algorithm developed by Tilman Liebchen, Marcus Purat and Peter Noll at Institute for Telecommunications
Lossless Transform Audio Compression
Lossless_Transform_Audio_Compression
Lossless audio coding format
MPEG-4 Audio Lossless Coding, also known as MPEG-4 ALS, is an extension to the MPEG-4 Part 3 audio standard to allow lossless audio compression. The extension
Audio_Lossless_Coding
Lossless predictive audio compression (LPAC) is an improved lossless audio compression algorithm developed by Tilman Liebchen, Marcus Purat and Peter Noll
Lossless predictive audio compression
Lossless_predictive_audio_compression
Compact encoding of digital data
the original representation. Any particular compression is either lossy or lossless. Lossless compression reduces bits by identifying and eliminating
Data_compression
List of computer file compression formats
Predictive Audio Compression (LPAC) – Predecessor of MPEG-4 ALS Lossless Transform Audio Compression (LTAC) – Predecessor of LPAC MPEG-1 Audio Layer III HD
List_of_codecs
Type of data compression
more accurately to human audio perception. While data reduction (compression, be it lossy or lossless) is a main goal of transform coding, it also allows
Lossy_compression
Digitally coded format for audio signals
Master Audio Free Lossless Audio Codec (FLAC) Lossless discrete cosine transform (LDCT) Meridian Lossless Packing (MLP) Monkey's Audio (Monkey's Audio APE)
Audio_coding_format
Audio data compression technology
and RealAudio codecs. WMA Pro, a newer and more advanced codec, supports multichannel and high-resolution audio. A lossless codec, WMA Lossless, compresses
Windows_Media_Audio
Lossy audio compression format
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. It was developed by Dolby, AT&T, Fraunhofer and Sony, originally
Advanced_Audio_Coding
Distortion of media caused by lossy data compression
(such as on Laserdiscs, Audio CDs and WAV files) or losslessly compressed media (such as FLAC or PNG) do not suffer from compression artifacts. The minimization
Compression_artifact
Technique used in signal processing and data compression
steganography, copyright protection Data compression — transform coding, lossy compression, lossless compression Encoding operations — quantization, perceptual
Discrete_cosine_transform
Lossless digital audio coding format
FLAC (/flæk/; Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio, developed by the Xiph.Org Foundation, and
FLAC
Digital audio format
lossy compression. Lossless formats include FLAC (Free Lossless Audio Codec), Apple Lossless and many others. MP3 Surround Windows Media Audio (WMA) Comparison
MP3
Mathematical technique used in data compression and analysis
little space as possible in a file. Wavelet compression can be either lossless or lossy. First a wavelet transform is applied. This produces as many coefficients
Wavelet_transform
Evolution of auditory media
using a variety of audio formats, some of which store additional information. Timeline of video formats Format war Audio data compression "The Electrical
Timeline_of_audio_formats
Data compression
Transform coding is a type of data compression for "natural" data like audio signals or photographic images. The transformation is typically lossless
Transform_coding
(typically 44.1 kHz). Lossless compression will have a variable bit rate. Free and open-source software portal Comparison of audio player software Comparison
Comparison of audio coding formats
Comparison_of_audio_coding_formats
Audio codec by Sony
Adaptive Transform Acoustic Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony. MiniDisc was the first commercial
ATRAC
Device or program that encodes/decodes audio data in some bitstream format
stored audio file. Most software codecs are implemented as libraries which interface to one or more multimedia players. Most modern audio compression algorithms
Audio_codec
Indian-American electrical engineer and computer scientist (born 1940)
transform (MDCT), is used in modern audio compression formats such as MP3, Advanced Audio Coding (AAC), and Vorbis (OGG). The discrete sine transform
Nasir_Ahmed_(engineer)
Lossy compression method for reducing the size of digital images
and lossless compression. It has significantly improved lossy compression ratio with significantly less visible artefacts at strong compression levels
JPEG
Audio codec
streaming audio. The usage profile HE-AAC v1 uses spectral band replication (SBR) to enhance the modified discrete cosine transform (MDCT) compression efficiency
High-Efficiency Advanced Audio Coding
High-Efficiency_Advanced_Audio_Coding
Format for digital video content
It typically uses a standardized video compression algorithm, most commonly based on discrete cosine transform (DCT) coding and motion compensation. A
Video_coding_format
Image compression standard and coding system
Like the Lossless JPEG standard, the JPEG 2000 standard provides both lossless and lossy compression in a single compression architecture. Lossless compression
JPEG_2000
Series of image file formats
uncompressed, compressed using a lossless compression scheme, or compressed using a lossy compression scheme. The lossless LZW compression scheme has at times been
TIFF
Computer technology
Silence compression is an audio processing technique used to effectively encode silent intervals, reducing the amount of storage or bandwidth needed to
Silence_compression
Number of bits of information recorded for each digital audio sample
used for different applications. DVD-Audio also supports optional Meridian Lossless Packing, a lossless compression scheme. Blu-ray supports a variety of
Audio_bit_depth
Open container format by Xiph.Org Foundation
provided by the music-oriented Vorbis format or its successor Opus. Lossless audio compression formats include FLAC, and OggPCM. Until 2007, the .ogg filename
Ogg
Information transmission rate expressed in bits per second
MP3 standard The Advanced Audio Coding (AAC) audio format provides lossy data compression or lossless data compression. Audio quality improves with increasing
Bit_rate
Widely used standard for video compression
spatial transform applied to chroma DC coefficients (and also luma in one special case) to obtain even more compression in smooth regions. Lossless macroblock
Advanced_Video_Coding
Device or software for encoding or decoding a digital data stream
bandwidth or storage space. Compression codecs are classified primarily into lossy codecs and lossless codecs. Lossless codecs are often used for archiving
Codec
Digital representation of sampled analog signals
largely rendered obsolete by modern transform-based audio compression techniques, such as modified discrete cosine transform (MDCT) coding. Linear PCM (LPCM)
Pulse-code_modulation
Lossless data compression method
Golomb coding is a lossless data compression method using a family of data compression codes invented by Solomon W. Golomb in the 1960s. Alphabets following
Golomb_coding
Topics referred to by the same term
The acronym LTAC can designate: Lossless Transform Audio Compression Literary Translators' Association of Canada Long-Term Acute Care facility LTAC may
LTAC
Multimedia framework
variety of application-specific integrated circuits (ASICs) for audio/video compression and decompression. These ASICs can partially or completely offload
FFmpeg
Lossy audio coding format
Comparison of audio coding formats FLAC (/flæk/; Free Lossless Audio Codec) Streaming media xHE-AAC Unused by default since 1.3. Opus cuts audio above 20 kHz
Opus_(audio_format)
formats are used for backups, mobility, and archiving. Many archive formats losslessly compress the data to consume less storage space and result in faster transfer
List_of_archive_formats
French computer programmer
"ts_zip: Text Compression using Large Language Models". bellard.org. Retrieved 2025-12-01. By (2024-04-24). "TSAC: Very Low Bitrate Audio Compression". bellard
Fabrice_Bellard
Audio technology company
American technology corporation specializing in audio noise reduction, audio encoding/compression, spatial audio, and high-dynamic-range television (HDR) imaging
Dolby
Burrows–Wheeler transform: preprocessing useful for improving lossless compression Context tree weighting Delta encoding: aid to compression of data in which
List_of_algorithms
Audio compression technologies
Dolby AC-3 multi-channel audio coding standard is the modified discrete cosine transform (MDCT), a lossy audio compression algorithm. It is a modification
Dolby_Digital
File format used in digital photography
using a lossy compression format (though a lossless JPEG compression is now available). Raw formats typically use lossless compression or high-quality
Raw_image_format
Portable device capable of storing and playing digital media
degrading audio quality. Lossless formats include Apple Lossless and FLAC. Lossy compression formats: Most audio formats use lossy compression, to further
Portable_media_player
Subset of artificial intelligence
Graphics (PNG) for images and Free Lossless Audio Codec (FLAC) for audio. It achieved compression of image and audio data to 43.4% and 16.4% of their original
Machine_learning
Joining of several channels of similar information to allow more efficient encoding
special case of transform coding, and retains the audio perfectly without introducing artifacts. Lossless codecs such as FLAC or Monkey's Audio use M/S stereo
Joint_encoding
2013 open and royalty-free video coding format
video resolutions greater than 1080p (such as UHD) and also enables lossless compression. It supports resolutions up to 65536×65536, whereas HEVC supports
VP9
Loss of quality between copies
Some digital transforms are reversible, while some are not. Lossless compression is, by definition, fully reversible, while lossy compression throws away
Generation_loss
Audio codec
EC-3), is a digital audio compression scheme developed by Dolby Labs for the transport and storage of multi-channel digital audio. It is a successor to
Dolby_Digital_Plus
Digital video coder/decoder
compressing the digital video data. In 1974, discrete cosine transform (DCT) compression was introduced by Nasir Ahmed, T. Natarajan and K. R. Rao. During
Video_codec
LZO — lossless compression library Liba52 — decoder for A/52 (AC-3) audio streams libarchive — reading and writing various archive and compression formats
List_of_C_software_and_tools
Video encoding standard
is a standard for lossy compression of video and audio. It is designed to compress VHS-quality raw digital video and CD audio down to about 1.5 Mbit/s
MPEG-1
Overview of and topical guide to electrical engineering
Image editing Segmentation Data compression Lossless data compression Lossy data compression Filtering Analog filter Audio filter Digital filter Finite impulse
Outline of electrical engineering
Outline_of_electrical_engineering
Digital electronic representation of moving visual images
consumption by a factor of 5 to 12 times when using lossless compression, but more commonly, lossy compression is used due to its reduction of data consumption
Digital_video
Series of multichannel audio technologies
the modified discrete cosine transform (MDCT) compression algorithm. Both music and movie DVDs allow delivery of a DTS audio signal, but DTS was not part
DTS,_Inc.
(although this will not be identical to the raw video input unless the compression was lossless). Each encoder implements the specification according to its own
Comparison_of_video_codecs
Digital video codecs and tape formats
625-50 for PAL. DV uses lossy compression of video while audio is stored uncompressed. An intraframe video compression scheme is used to compress video
DV_(video_format)
Function for integral Fourier-like transform
(developed by Didier Le Gall and Ali J. Tabatabai in 1988) for its lossless compression algorithm. JPEG 2000 technology, which includes the Motion JPEG 2000
Wavelet
Video compression standard
about 50% better compression rate for the same perceptual quality compared to HEVC, with support for lossless and lossy compression. It supports resolutions
Versatile_Video_Coding
2018 open and royalty-free video coding format
for lossy encoding, although lossless compression is supported as well. AV1 is a traditional block-based frequency transform format featuring new techniques
AV1
Low-latency video compression standard
rendering, and image sensor compression (for example in cameras and in the automotive industry). JPEG XS favors visually lossless quality in combination with
JPEG_XS
Video compression format, succeeds MPEG-1
"MPEG-2 Video compression". Retrieved 1 November 2009. H.262 (07/95) Information Technology – Generic Coding of Moving Picture and Associated Audio Information:
H.262/MPEG-2_Part_2
Topics referred to by the same term
transponder, Texas Instruments' RFID device Direct Stream Transfer, a lossless audio compression format used by SACD Douglas Sleeper Transport, a 1940s aircraft
DST_(disambiguation)
Cable or other structure for carrying radio waves
Y21, and Y11 = Y22. For lossless and lossy transmission lines respectively, the Y parameter matrix is as follows: Y Lossless = [ − j cot ( β l ) Z 0
Transmission_line
of encoding information in this manner is the cornerstone of lossless data compression. A hundred years later, frequency modulation illustrated that
History_of_information_theory
Application programming interface for multimedia playback
Objects (DMOs) and all other so-called "legacy" multimedia APIs such as Audio Compression Manager (ACM) and Video for Windows (VfW). The existing DirectShow
Media_Foundation
Classical quantization technique from signal processing
Compression, and Coding Library (open source) VQ Indexes Compression and Information Hiding Using Hybrid Lossless Index Coding, Wen-Jan Chen and Wen-Tsung Huang
Vector_quantization
Measurement of a signal at discrete time intervals
audio systems typically employ pulse-code modulation (PCM) to encode sound as a series of discrete samples of the electrical level of an analog audio
Sampling_(signal_processing)
Mathematical descriptions of transmission line voltage and current
voltage dissipation or wire heating accounted for as corrections to the "lossless line" calculation, or just ignored. Conductance G Conductance between the
Telegrapher's_equations
Uninterrupted playback of consecutive audio tracks
such information to audio files will enable precise gapless playback in players that support this. Since lossless data compression excludes the possibility
Gapless_playback
Algorithmic processing of digitally-represented images
compression technology was the discrete cosine transform (DCT), a lossy compression technique first proposed by Nasir Ahmed in 1972. DCT compression became
Digital_image_processing
Type of malicious software
Embedding in DCT coefficients (used in JPEG compression) Embedding in DWT coefficients (used in lossless formats) Spread spectrum techniques, which distribute
Stegomalware
Theory about lossy data compression
for how much compression can be achieved using lossy compression methods. Many of the existing audio, speech, image, and video compression techniques have
Rate–distortion_theory
Type of machine learning model
to accurately predict the next token, LLMs are highly capable in lossless compression. A 2023 study by DeepMind showed that the model Chinchilla, despite
Large_language_model
Video encoding standard
MPEG-4 is a group of international standards for the compression of digital audio and visual data, multimedia systems, and file storage formats. It was
MPEG-4
Form of error in digital signals; spurious signals near sharp transitions
pre-echo. This phenomenon occurs as a compression artifact in audio compression algorithms that use Fourier-related transforms, such as MP3, AAC, and Vorbis.
Ringing_artifacts
File format for block-based Gzip compression
GNU Zip Format (BGZF) is a variant of gzip file format that uses block compression, a method that compresses data in independent blocks of content—each
BGZF
Delivery method of media content
has been successful for several reasons. The development of lossy audio compression file formats such as MP3 could take 30 MB for a typical 3-minute song
Digital_distribution
Video camera with built-in video recorder
introduced DCT, the first digital video format with data compression using the discrete cosine transform algorithm present in most commercial digital video
Camcorder
Digital optical disc format
and DTS-HD High Resolution Audio as well as lossless 5.1 and 7.1 surround sound formats Dolby TrueHD and DTS-HD Master Audio. BD-ROM titles must use one
Blu-ray
Conversion of digital data between formats
manipulation of the image can. Converting an image or audio file in a lossy format (like JPEG or Vorbis) to a lossless (like PNG or FLAC) or uncompressed (like BMP
Data_conversion
Two-dimensional vector image file format
many repeated fragments of text, so they are well suited for lossless data compression algorithms. When an SVG image has been compressed with the gzip
SVG
positioning system LORAN Lorentz force law Loss power Lossless data compression Lossy data compression Loudspeaker Low-pass filter LTI system theory Lumen
Index of electrical engineering articles
Index_of_electrical_engineering_articles
Former multimedia software
better compression and quality than JPEG. JPEG-XR enables lossy and lossless compression with or without alpha channel transparency. Flash Player 11 can also
Adobe_Flash_Player
Adjusting input/output impedances of an electrical circuit for some purpose
bandwidth applications, a more complex network must be designed. If a lossless reciprocal two-port network matches a load impedance Z L = R L + j X L
Impedance_matching
Mobile phone with photographic capability
most important compression algorithm is the discrete cosine transform (DCT), a lossy compression technique that was first proposed by Nasir Ahmed while he
Camera_phone
Application of computing technology in music
chains and stochastic processes. Modern methods include the use of lossless data compression for incremental parsing, prediction suffix tree, string searching
Computer_music
Apps pre-installed on the Apple iOS operating system
local and international broadcasters available. Music supports lossless and spatial audio, and is capable of video playback, used primarily for music videos
List_of_built-in_iOS_apps
24, 2017. Among the many additions were added support for FLAC (Free Lossless Audio Codec) playback, better Tab Switching, support for WebGL 2, and a warning
Firefox_version_history
Computer format for representing real numbers
floating-point rounding rules in different hardware could corrupt the lossless nature of the compression. The Nest Labs Utilities library, provides a limited set of
Fixed-point_arithmetic
List of definitions of terms and concepts used in electrical engineering and electronics
conductors and the resulting magnetic forces between them. lossless data compression Any data compression method where the source can be reconstructed exactly;
Glossary of electrical and electronics engineering
Glossary_of_electrical_and_electronics_engineering
Industrial shift to information technology
information growth would be made possible through automated, potentially-lossless digital technologies. Accordingly, Moore's law, formulated around 1965
Information_Age
Era of popular entertainment in the US centered on radio shows
the circulating recordings are corrupted (decreased in quality), because lossless digital recording for the home market did not come until the very end of
Golden_Age_of_Radio
Physical phenomenon
names: authors list (link) Takayama, O.; Artigas, D., Torner, L. (2014). "Lossless directional guiding of light in dielectric nanosheets using Dyakonov surface
Surface_wave
Features added to Windows Vista
supports features such as high-dynamic-range imaging, lossy as well as lossless compression, up to 32-bpp fixed or floating point representation, transparency
Features_new_to_Windows_Vista
Device that transmits and receives radio waves
input, producing the highest possible efficiency. Contrary to an ideal (lossless) series-resonant circuit, a finite resistance remains (corresponding to
Antenna_(radio)
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
Girl/Female
Indian
Calm, Composed, Self-possess
Girl/Female
Hindu
One who possess all good qualities
Surname or Lastname
English
English : nickname from Middle English loveles ‘loveless’, ‘without love’, probably in the sense ‘fancy free’.English : some early examples, such as Richard Lovelas (Kent 1344), may have as their second element Middle English las(se) ‘girl’, ‘maiden’.
Girl/Female
Tamil
Samanvitha | ஸமாஂநà¯à®µà¯€à®¤à®¾, ஸமாஂநà¯à®µà¯€à®¤à®¾Â
One who possess all good qualities
Samanvitha | ஸமாஂநà¯à®µà¯€à®¤à®¾, ஸமாஂநà¯à®µà¯€à®¤à®¾Â
Girl/Female
Tamil
Sarvamantramayi | ஸரà¯à®µà®®à®‚தà¯à®°à®®à®¯à¯€
One who possess all the instruments of thought
Sarvamantramayi | ஸரà¯à®µà®®à®‚தà¯à®°à®®à®¯à¯€
Boy/Male
American, Australian, British, Chinese, English, German
Old Friend
Boy/Male
Indian, Sanskrit
To Possess; To Govern
Surname or Lastname
English
English : habitational name, probably from Ramsfold Farm in Lurgashall, Sussex. In a 14th-century record the name occurs as de Rammesford.
Girl/Female
Australian, Finnish
Possess a Lot; Wealthy
Male
German
Modern form of Old German Audo, OTTO means "wealthy."
Boy/Male
Indian, Sanskrit
To Possess
Boy/Male
African Egyptian
Righteous.
Girl/Female
Czechoslovakian, Finnish, German, Hebrew, Slovenia, Swedish
Good Health; Maintain Well; Possess; Good
Boy/Male
Anglo, Australian, British, English
From the Raven Ford
Girl/Female
Muslim
Calm, Composed, Self-possess
Girl/Female
Gujarati, Hindu, Indian, Sanskrit
Transformer
Male
German
Older form of German Otto, AUDO means "prosperous, wealthy."Â
Girl/Female
American, British, Christian, English
Noble Strength
Surname or Lastname
English
English : habitational name from a place in Worcestershire, named Bransford, from Old English brægen ‘hill’ + ford ‘hill’.
Girl/Female
African, British, English, German
Noble Strength
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
Boy/Male
American, Australian, Chinese, Danish, Finnish, German, Norse, Scandinavian, Swedish
Beloved; Descendant; Heir
Girl/Female
Muslim
Brave warrior
Girl/Female
Latin
Glory.
Male
Slovene
Slovene form of German Frideric, FRIDERIK means "peaceful ruler."
Boy/Male
Greek
Resurrected.
Boy/Male
Australian, Chinese, Hebrew, Vietnamese
Fence; Fictitious Four-legged Animal with a Single Horn on the Head; Unicorn
Boy/Male
British, English, French, Italian, Latin, Portuguese, Swedish
Blind; From the Roman Clan Name Caecilius; Sixth
Female
Romanian
Romanian form of Greek Hel�nē, probably ILEANA means "torch."
Boy/Male
American, Australian, Latin
Crowned with Laurel; From Laurentium; Laurentium was a City South of Rome Known for Its Numerous Laurel Trees
Boy/Male
American, Australian, British, English, French, German, Scottish, Teutonic
Wild Garlic; From Ram's Island
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
LOSSLESS TRANSFORM-AUDIO-COMPRESSION
v.
A vessel employed for transporting, especially for carrying soldiers, warlike stores, or provisions, from one place to another, or to convey convicts to their destination; -- called also transport ship, transport vessel.
v. t.
To carry or bear from one place to another; to remove; to convey; as, to transport goods; to transport troops.
v. t.
To change the form of; to change in shape or appearance; to metamorphose; as, a caterpillar is ultimately transformed into a butterfly.
p. pr. & vb. n.
of Transform
v. t.
To convey from one place or person another; to transport, remove, or cause to pass, to another place or person; as, to transfer the laws of one country to another; to transfer suspicion.
v. t.
To have the legal title to; to have a just right to; to be master of; to own; to have; as, to possess property, an estate, a book.
v. i.
To be changed in form; to be metamorphosed.
a.
Free from loss.
v. t.
To transfer or transform the nature of.
n.
A horizontal crossbar in a window, over a door, or between a door and a window above it. Transom is the horizontal, as mullion is the vertical, bar across an opening. See Illust. of Mullion.
v. t.
To transform anew or back.
p. pr. & vb. n.
of Audit
imp. & p. p.
of Transform
imp. & p. p.
of Audit
v. t.
To transfigure; to transform.
n.
One who, or that which, transforms. Specif. (Elec.), an apparatus for producing from a given electrical current another current of different voltage.
v. t.
To change into another substance; to transmute; as, the alchemists sought to transform lead into gold.
v. t.
To change, as an algebraic expression or geometrical figure, into another from without altering its value.
v. t.
To remove from one substance or surface to another; as, to transfer drawings or engravings to a lithographic stone.
v. t.
To examine and adjust, as an account or accounts; as, to audit the accounts of a treasure, or of parties who have a suit depending in court.