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Formats: Containers, Compression, and Codecs
https://helpx.adobe.com/x-productkb/multi/formats-containers.html#:~:text=Common%20compression%20schemes%20include%20H.264%2C%20MPEG4%20part%202%2C,an%20audio%20or%20video%20signal%20and%20compresses%20it.
Audio File Formats FAQ: Compression schemes.
http://sox.sourceforge.net/AudioFormats-4.html
Apple has an Audio Compression/Expansion scheme called ACE (on the GS) / MACE (on the Macintosh). It's a lossy scheme that attempts to predict where the wave will go on the next sample. There's very little quality change on 8:4 compression, somewhat more for 8:3. It does guarantee exactly 50% or 62.5% compression, though.
Comparison of Lossless Compression Schemes for WAV …
https://ijssst.info/Vol-19/No-6/paper36.pdf
data compression specifically for audio files that are formatted in mp3, and wav as a very sensitive will lose data [1]. The size of WAV files are large, then the required compression to reduce the size of the data. WAV format is usually used as the master data or original audio data compression, which allows it be used without removing the
Understanding Audio Data Compression: MP3s, AACs, …
https://www.uaudio.com/blog/understanding-audio-data-compression/
FLAC (Free Lossless Audio Codec) is one of the few audio formats that delivers truly lossless compression. FLAC is similar to a ZIP file, but is designed specifically for audio. FLAC is also open-source, and FLAC files can be played back on most MP3-compatible players.
Digital Audio Compression - Columbia University
https://www.ee.columbia.edu/~dpwe/papers/Pan93-acomp.pdf
Other ADPCM audio compression schemes include the CCITT Recommendation G.721 (32 kilobits per second compressed data rate) and Recommendation G.723 (24 kilobits per second compressed data rate) standards and the compact disc interactive audio compression algorithm.[7,8] The IMA ADPCM Algorithm. The IMA is a consor-
Comparing audio compression using wavelets with other ...
https://ieeexplore.ieee.org/document/808013/
The performance of this method is compared against the following representative coding and compression schemes: adaptive differential pulse code modulation (ADPCM) which reduces the transmitted data by a factor of two; linear predictive coding (LPC) with compression ratio of more than twelve to one; linear predictive coding algorithm using the United States …
Lecture 7: Audio compression and coding
https://www.ee.columbia.edu/~dpwe/e6820/lectures/L07-coding.pdf
E6820 (Ellis & Mandel) L7: Audio compression and coding March 31, 2009 21 / 37. Multi-Pulse Excitation (MPE-LPC) Stylize excitation as N discrete pulses-5 0 5 10 15 0 20 40 60 80 100 120 time / samps-5 0 5 ti mi original LPC residual multi-pulse excitation I encode as N (t i;m ) pairs Greedy algorithm places one pulse at a time: E pcp = A (z) A ...
COMPUTATIONALLY EFFICIENT COMPRESSION OF …
https://www.montana.edu/rmaher/publications/maher_waspaa_1093_1-4.pdf
psychoacoustical information in the design of audio data compression systems is a significant area of research. Existing audio data compression systems specifically intended for high quality applications can achieve approximately 6:1 compression of monophonic audio material with results nearly indistinguishable from the original signal to human listeners [6, 7, 8, 9, 10]. …
Multimedia Systems: Compression Techniques
https://eclass.uoa.gr/modules/document/file.php/D246/Lectures/compression.pdf
Basic Audio Coding Schemes 6. JPEG 7. H.261 (px64) 8. Further ITU Video Schemes (H.263, H.3xx) 9. MPEG-1 10. MPEG-2 11. MPEG-4 12. Wavelets 13. Fractal Image Compression 14. Conclusion Multimedia 3-compre.frm 4 1. Motivation Digital video in computing means: with 3 bytes/pixel 640*480 pixels/frame 25 images/s Hence, Compression isnecessary
Audio Coding - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/computer-science/audio-coding
Wideband audio coding refers to the compression of audio signals with 15–20 kHz bandwidth and is generally aimed at a quality that is nearly indistinguishable from consumer compact disc audio. Applications of wideband audio coding are mainly in consumer hi-fi, professional audio including motion picture and HDTV audio, various multimedia PCs and systems, and, lately, …
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