ECE497 Lab11 Using ALSA

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Be sure you have done Lab 10 before this lab so all your software is set up.

Lab 11/6 - Using ALSA

This is a placeholder...

There are ALSA examples here that are built on DMAI.

Problems and Solutions

Killing pulseaudio

Be sure to run:

killall -9 pulseaudio

before using ALSA.

Some notes on ALSA

I've gotten this example working. I'm also looking here.

On the Beagle you need to:

# opkg install alsa-dev

On the host:

$ sudo apt-get install libasound2-dev

Go to the class dfs site and get alsaWrite.c. Compile it with

# gcc -lasound alsaWrite.c
# ./a.out

It runs on the Beagle and desktop and produces a sound.

It's shouldn't be hard to convert alsaWrite.c to alsaRead.c. See the sites above for hints.