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How Does Audio Compression Work, and What Is "Lossless ...
https://www.maketecheasier.com/audio-compression-and-lossless-audio/#:~:text=Lossy%20compression%20is%20a%20one-way%20technique%20that%20throws,look%20to%20save%20bits%3A%20bit%20rate%20and%20psychoacoustics.
Simple Audio Compression Methods
https://users.ece.utexas.edu/~ryerraballi/MSB/pdfs/M4L4.pdf
Compression factor ranging from 2.7 to 24. With Compression rate 6:1 (16 bits stereo sampled at 48 KHz is reduced to 256 kbits/sec) Under optimal listening conditions, expert listeners could not distinguish between coded and original audio clips. Supports one or two audio channels in one of the four modes: 1. Monophonic -- single audio channel 2.
Audio Compression - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/computer-science/audio-compression
Here are the main steps in the audio compression process. 1. Sampling and preprocessing 2. Sub-band coding 3. Transform coding (optional) 4. Quantization according to psychoacoustic masking threshold 5. Multichannel bit allocation (optional) 6. Huffman coding
Sound Data Compression Using Different Methods - Springer
https://link.springer.com/chapter/10.1007%2F978-3-642-29219-4_12
Abstract. This paper is about the methods of sound data compression. The development of audio data compression has significantly made our lives easier. The technological progress has facilitated the process of recording audio on different media such as CD-Audio. In recent years, much has been achieved in the field of audio and speech …
Digital Audio Compression - Columbia University
https://www.ee.columbia.edu/~dpwe/papers/Pan93-acomp.pdf
cient storage and transmission of audio data. The many forms of audio compression techniques offer a range of encoder and decoder complexity, compressed audio quality, and differing amounts of data com-pression. The -law transformation and ADPCM coder are simple approaches with low-complexity, low-compression, and medium audio quality algo-rithms.
How Does Audio Compression Work, and What Is …
https://www.maketecheasier.com/audio-compression-and-lossless-audio/
Lossy compression is a one-way technique that throws away non-critical data to save space. These techniques are the most common methods used to compress audio files, showing up in MP3, AAC and WMA files alike. There are two places that lossy codecs look to save bits: bit rate and psychoacoustics.
Audio Fundamentals, Compression Techniques & Standards
http://ce.sharif.edu/courses/91-92/2/ce873-1/resources/root/Class%20Notes/MMN-lec3-Audio-911121.pdf
Some techniques for sound compression: PCM - send every sample DPCM - send differences between samples ADPCM - send differences, but adapt how we code them LPC - linear model of speech formation CELP - use LPC as base, but also use some bits to code corrections for the things LPC gets wrong.
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