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Digital audio - Wikipedia
https://en.wikipedia.org/wiki/Digital_audio#:~:text=Digital%20audio%20is%20a%20representation%20of%20sound%20recorded,times%20per%20second%2C%20each%20with%2016-bit%20sample%20depth.
Understanding PDM Digital Audio - users.ece.utexas.edu
https://users.ece.utexas.edu/~bevans/courses/rtdsp/lectures/10_Data_Conversion/AP_Understanding_PDM_Digital_Audio.pdf
PDM, which uses only one bit to convey audio, is simpler in concept and execution than PCM. It has become popular as a way to deliver audio from microphones to the signal processor in mobile telephones. PDM is ideally suited for this task because it brings the benefits of digital, such as low noise and freedom from interfering signals, at low cost.
DIGITAL AUDIO EFFECTS - Stanford University
https://ccrma.stanford.edu/~orchi/Documents/DAFx.pdf
ABSTRACT. •Audio signal processing, sometimes referred to as audio processing, is the intentional alteration of auditory signals or sound, often through an audio effector effects unit. As audio signals may be electronically represented in either digital or analog format, signal processing may occur in either domain.
CHAPTER 6 FUNDAMENTALS OF DIGITAL AUDIO
http://cis.csuohio.edu/~sschung/CIS465/ch04bDigitizingSoundAll.pdf
Step 2. Quantization • Each of the discrete samples of amplitude values obtained from the sampling step are mapped and rounded to the nearest value on a scale of discrete levels. • The number of levels in the scale is e,˜ressed in bid ep--the power of 2. • An 8-bit audio allows 2 8= 256 possible levels in the scale • CD-quality audio is 16-bit (i.e., 2 16 = 65,536 possible levels)
Playing video, audio, and multimedia formats in PDFs ...
https://helpx.adobe.com/acrobat/using/playing-video-audio-multimedia-formats.html
Audio Includes audio files, such as MP3 and MP4 You can play these files on a page or activate them from a link, bookmark, form field, or page action. Each multimedia file includes a play area from which the media can be activated. The play area typically appears on the PDF page as an image or a rectangle, but can also be invisible.
Fundamentals of digital audio processing
http://smc.dei.unipd.it/education/algo4smc_ch1.pdf
Fundamentals of digital audio processing 1-3 4. D = Z, C = Z: numerical, or digital, signal. This is the type of signal that can be processed with the aid of the computer. In these sections we will focus on discrete-time signals, regardless of whether they are quantized or not. We will equivalently use the terms discrete-time signal and sequence.
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