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Perceptual audio coding - Telecom ABC
http://telecomabc.com/p/perceptual.html#:~:text=Perceptual%20audio%20coding%20is%20a%20compression%20technology%20for,of%20the%20original%20digital%20audio%20bitstream%20before%20compression.
Fundamentals of Perceptual Audio Coding
https://ocw.mit.edu/courses/health-sciences-and-technology/hst-723j-neural-coding-and-perception-of-sound-spring-2005/labs/fmntlprcptlaudio.pdf
perceptual audio encoders (e.g. quantization & quantization noise, sub-band coding & bit allocation, tone & noise masking thresholds, etc.) 2) Describe the methods of Experiment 1 and the results you obtained. Explain how the threshold results obtained relate to the masking thresholds used in perceptual audio encoding.
Perceptual Audio Coding (PAC) | CCRMA
https://ccrma.stanford.edu/workshops/perceptual-audio-coding-pac
Perceptual audio coding is really a field at the cross road of many disciplines and one that flourished in the past 30 years by exploiting the advances in DSP and computer power to represent the audio signal in a compact and efficient way, by applying heuristic models and psychoacoustics data to identify irrelevant sound components, and ultimately by optimizing …
Perceptual Audio Coding
https://www.eie.polyu.edu.hk/~enyhchan/ce_asc.pdf
perceptual coding Coding techniques Subband coding Transform coding MPEG Audio standards MP1 MP2 MP3 &<+ (,(’HSW +.3RO\8 3 Preface Traditionally, audio recording systems have used objective parameters as their design goals - flat response, minimal noise, and so on. Perceptual coders recognize that the final receiver is the human auditory system and
Fundamentals of Perceptual Audio Coding
https://ocw.mit.edu/courses/health-sciences-and-technology/hst-723j-neural-coding-and-perception-of-sound-spring-2005/labs/maskinglabhndout.pdf
minimum number of bits while producing an audio output at the desire fidelity. When digitizing a signal, quantization noise is inevitably introduced. Although the outputs of perceptual coders contain considerable amounts of noise and distortion, the 1 PCM (pulse code modulation) is a digital scheme for transmitting analog data. The signals in ...
Music 422 : Perceptual Audio Coding - Stanford University
https://ccrma.stanford.edu/courses/422-winter-2018/index.htm
Perceptual audio coders are currently used in many applications including Digital Radio and Television, Digital Sound on Film, and Multimedia/Internet Audio. In this course, the basic principles of perceptual audio coding will be reviewed. Current and future applications (e.g. AC-3, MPEG) will be presented.
Perceptual Coding of Digital Audio - MP3
http://www.mp3-tech.org/programmer/docs/audiopaper1.pdf
Coding Params. Fig. 1. Generic Perceptual Audio Encoder The study of perceptual entropy (PE) suggests that transparent coding is possible in the neighborhood of 2 bits per sample [101] for most for high-fidelity audio sources (~88 kpbs given 44.1 kHz sampling). The lossy perceptual coding algorithms
AES E-Library » Perceptual Audio Coders "What to listen for"
https://www.aes.org/e-lib/browse.cfm?elib=9836
PRINCIPLES OF PERCEPTUAL AUDIO CODING Before starting to discuss the different artifacts, a short review of perceptual audio coding will be provided. Based on the notion of the critical bands [4] [5] [6], the cochlea, from a signal processing perspective can be viewed as a bank of overlapping bandpass filters. It should be mentioned that the ...
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