ECE497 Lab11 Using the Open Sound System (OSS) - Revision history

Yoder: Delete, there's a newer page out there.

2011-12-09T19:27:53Z

Delete, there's a newer page out there.

2011-05-07T21:36:33Z

2011-05-07T21:36:19Z

2011-05-05T02:04:31Z

‎Some notes on ALSA: Fixed typo

2011-05-02T17:00:18Z

‎Some notes on ALSA

2011-05-02T16:22:51Z

‎Some notes on ALSA

2011-05-02T14:16:08Z

‎Some notes on ALSA

2011-05-01T23:29:52Z

‎Testing the audio chain with GStreamer: - Added lines to install esc-gst examples

2011-04-29T20:37:23Z

‎Some notes on ALSA: Success with producing a sound.

2011-04-29T18:42:33Z

‎Testing the audio chain with GStreamer

← Older revision		Revision as of 19:27, 9 December 2011
Line 1:		Line 1:
−	[[Category:~~ECE497~~]]	+	[[Category:ToDelete]]
		+
		+	Use [[EBC Exercise 08 Using ALSA for Audio Processing]] instead.

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

@@ Line 86: / Line 86: @@
 # ./a.out
 </pre>
-It runs on the Beagle aad desktop and produces a sound.
+It runs on the Beagle and desktop and produces a sound.
 It's shouldn't be hard to convert <code>alsaWrite.c</code> to <code>alsaRead.c</code>.  See the sites above for hints.

@@ Line 86: / Line 86: @@
 # ./a.out
 </pre>
-It runs on the Beagle nad desktop and produces a sound.
+It runs on the Beagle aad desktop and produces a sound.
 It's shouldn't be hard to convert <code>alsaWrite.c</code> to <code>alsaRead.c</code>.  See the sites above for hints.

@@ Line 79: / Line 79: @@
 On the host:
 <pre>
-$ sudo apt-get install libasounds2-dev
+$ sudo apt-get install libasound2-dev
 </pre>
 Go to the class dfs site and get <code>alsaWrite.c</code>.  Compile it with

@@ Line 83: / Line 83: @@
 Go to the class dfs site and get <code>alsaWrite.c</code>.  Compile it with
 <pre>
-# gcc -lasound2 alsaWrite.c
+# gcc -lasound alsaWrite.c
 # ./a.out
 </pre>

@@ Line 70: / Line 70: @@
 === Some notes on ALSA ===
-I'm trying to get [http://www.suse.de/~mana/alsa090_howto.html#sect02 this] example working.  I'm also looking [http://www.equalarea.com/paul/alsa-audio.html#playex here].
+I've gotten [http://www.suse.de/~mana/alsa090_howto.html#sect02 this] example working.  I'm also looking [http://www.equalarea.com/paul/alsa-audio.html#playex here].
 On the Beagle you need to:

@@ Line 41: / Line 41: @@
 <pre>
 # cd /usr/share/esc-gst/
 # ls

← Older revision		Revision as of 18:42, 29 April 2011
Line 65:		Line 65:

	Notice you have to kill off pulseaudio as was suggested above! <code>a1</code> plays a simple tone, <code>a6</code> takes the input from the mic and sends it to the speakers. This works for me and is a good way to test your whole audio chain.		Notice you have to kill off pulseaudio as was suggested above! <code>a1</code> plays a simple tone, <code>a6</code> takes the input from the mic and sends it to the speakers. This works for me and is a good way to test your whole audio chain.
		+
		+	=== Some notes on ALSA ===
		+
		+	I'm trying to get [http://www.suse.de/~mana/alsa090_howto.html#sect02 this] example working. I'm also looking [http://www.equalarea.com/paul/alsa-audio.html#playex here].
		+
		+	On the Beagle you need to:
		+	<pre>
		+	opkg install alsa-dev
		+	</pre>
		+	On the Beagle it gets the error "Error setting buffersize". I've tried changing periodsize to 44100 down to 8000, but no luck.
		+
		+	On the host:
		+	<pre>
		+	sudo apt-get install libasounds2-dev
		+	</pre>
		+	It runs on the host, but no sound comes out.