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Audio Compression - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/computer-science/audio-compression#:~:text=The%20MPEG%2F%20audio%20compression%20algorithm%20supports%20two%20types,another%20perceptual%20property%20of%20the%20human%20auditory%20system.
About video and audio encoding and compression
https://helpx.adobe.com/media-encoder/using/video-audio-encoding-compression.html
Recording video and audio to a digital format involves balancing quality with file size and bitrate. Most formats use compression to reduce file size and bitrate by selectively reducing quality. Compression is essential for reducing the size of movies so that they can be stored, transmitted, and played back effectively.
Lecture 7: Audio compression and coding
https://www.ee.columbia.edu/~dpwe/e6820/lectures/L07-coding.pdf
Outline 1 Information, Compression & Quantization 2 Speech coding 3 Wide-Bandwidth Audio Coding E6820 (Ellis & Mandel) L7: Audio compression and coding March 31, 2009 2 / 37
5.3.8 Algorithms for Audio Companding and …
http://digitalsoundandmusic.com/5-3-8-algorithms-for-audio-companding-and-compression/
AAC (Advanced Audio Coding) is the successor of MP3 compression, using similar perceptual encoding techniques but improving on these and supporting more channels, sampling rates, and bit rates. AAC is available within both the MPEG-2 and MPEG-4 standards and is the default audio compression method for iPhones, iPods, iPads, Android phones, and a variety of video game …
AUDIO AND VOICE COMPRESSION - NCSU
http://reeves.csc.ncsu.edu/Classes/csc557/2001-fall/lectures/audio-compression.pdf
AUDIO AND VOICE COMPRESSION N. C. State University CSC557 ♦ Multimedia Computing and Networking Fall 2001 Lectures # 07&08. AUDIO AND VOICE COMPRESSION ... Steps in MPEG-I Audio Encoding I. Sample input at 16 bits/sample II. Decompose input into frequency “sub-bands” by bandpass filtering • 32 sub-bands, filter order = 511
Audio Coding and Compression for Microcontrollers | …
https://www.digikey.com/en/articles/audio-coding-and-compression-for-microcontrollers
The MPEG2 Layer 3 (MP3) audio codec uses a model of the human hearing rather than vocal system to determine how best to compress an audio stream. Many of today’s leading audio codecs are lossy, perceptual codecs that work on the basis that the brain cannot hear certain audio signals that are ‘masked’ by other, louder signals.
Compression of Audio Using Transform Coding
http://www.jocm.us/uploadfile/2019/0308/20190308035942448.pdf
—Audio, compression, quantization, lossy and lossless compression, transforms coding, wavelet transform, DCT coding . I. INTRODUCTION. The sound can be represented by electrical form called Audio. Audio is sound within the range of human hearing. The human ear can recognize frequency ranges from 20 Hz to 20 kHz [3]. There are two reasons make audio compression is …
audio - Difference between coding and compression? - …
https://stackoverflow.com/questions/20160334/difference-between-coding-and-compression
The concept of encoding is relevant to other types of files, too : http://en.wikipedia.org/wiki/Character_encoding. Compression is any technique used to store or send the data in a smaller number of bytes than a 'naive' representation would take up - for audio, that 'naive' representation would be a basic PCM representation. There are two basic types of …
Comparison of audio coding formats - Wikipedia
https://en.wikipedia.org/wiki/Comparison_of_audio_coding_formats
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