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Digital Audio Compression - Columbia University
https://www.ee.columbia.edu/~dpwe/papers/Pan93-acomp.pdf#:~:text=Compared%20to%20most%20digital%20data%20types%2C%20with%20theexception,signals%20and%20are%20not%20speci%EF%AC%81cally%20tuned%20for%20speechsignals.
Simple Audio Compression Methods
https://users.ece.utexas.edu/~ryerraballi/MSB/pdfs/M4L4.pdf
MPEG-1: Bitrate of 1.5 Mbits/sec for audio and video About 12M. btis/sec for vdieo ,03M. btis/sec for audoi (Uncompressed CD audio is 44,100 samples/sec * 16 bits/sample * 2 channels > 1.4 Mbits/sec) 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)
Audio and Video Compression - SlideShare
https://www.slideshare.net/apashishp/audio-and-video-compression-64399575
Audio level compression Video Compression 1. Lossy Video Compression 2. Lossless Video Compression. 4. AUDIO COMPRESSION Audio compression is a form of data compression designed to reduce the size of audio data files. Audio compression can mean Two things: Audio data compression Audio level compression. 5.
Audio Compression Techniques
https://www.mpi.nl/corpus/a4guides/a4-guide-audio-compression.pdf
Audio Compression Techniques Linear PCM (pulse code modulation) is a direct digitization technique for sound waves. At equidistant moments in time defined by the sample frequency and equidistant points at the amplitude scale, samples are taken, i.e. digital numbers are
Audio and video compression - SlideShare
https://www.slideshare.net/neeraj9217/audio-and-video-compression
Audio and video compression. 1. Audio Compression. 2. Introduction Audio signal or analog signal uses PCM Digitization process which involves SAMPLING. Sampling rate > or = to : 2 (Highest frequency component). Band-limited Signal: When the BW of comm. Channel to be used is less than minimum sampling rate then signal needs to be bandlimited. Speech Signal: …
Audio Fundamentals, Compression Techniques & Standards
http://ce.sharif.edu/courses/91-92/2/ce873-1/resources/root/Class%20Notes/MMN-lec3-Audio-911121.pdf
Sound Compression ! 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. !
An explanation of video compression techniques.
https://www.reachcambridge.com/wp-content/uploads/wp_videocompression_33085_en_0809_lo.pdf
bandwidth available. To circumvent this problem, a series of techniques – called picture and video compression techniques – have been derived to reduce this high bit-rate. Their ability to perform this task is quantified by the compression ratio. The higher the compression ratio is, the smaller is the bandwidth consumption.
Audio Compression Basics | Universal Audio
https://www.uaudio.com/blog/audio-compression-basics/
Audio Compression Explained. Depending on which compressor you're using, and whether it’s a hardware unit or a plug-in, there are some common parameters and controls used in audio compression that you should be familiar with. Understanding each of the following controls will allow you to work comfortably with a wide range of compressors.
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