June 2018
Intermediate to advanced
492 pages
9h 52m
English
Content preview from Hack Audio
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Chapter 3
Basics of Audio in MATLAB®Creating, Importing, and Indexing Arrays
3.1 Introduction: Digital Audio Signals
An audio signal can be represented as a function of amplitude over time: . When the signal is in the form of acoustic sound in physical space, it is a function of sound pressure over time. A microphone converts sound pressure to another form: electricity. In this case, the audio signal is a function of voltage over time or current over time. Sound pressure and electricity are functions of continuous time, meaning an amplitude value exists for all time during a signal.
A computer processes another form of the audio signal, a digital respresentation. The values in a digital signal are based on sampled (i.e., measured) amplitude ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.