March 2016
Beginner to intermediate
296 pages
6h 34m
English
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Chapter 7. Real-Time Signal Processing
In this chapter, we will cover the following topics:
- Configuring the audio codec
- How to play prerecorded audio
- Designing a low-pass digital filter
- How to make an audio tone control
Introduction
In the last chapter, we used the audio codec's beep generator to play a tune, but if you looked at the codec manufacturer's data sheet, you must have noticed that the device can do much more. Audio signals can be recorded by connecting a microphone to the evaluation board's stereo analog audio input, and the signal can be sampled using the audio codec's on-chip ADC. Digital audio can be played by sending digital samples to the codec, and the left and right speakers can be driven by the output of an on-chip DAC. A dedicated ...
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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.