Resources for “A User's Guide to ALSA”
ALSA Home: www.alsa-project.org
ALSA Wiki: alsa.opensrc.org
JACK: jackit.sf.net
PortAudio: www.portaudio.com
AGNULA/Demudi: www.agnula.org
PlanetCCRMA: ccrma.stanford.edu/planetccrma/software
AudioSlack: www.audioslack.com
Thac's RPMs for Mandrake: rpm.nyvalls.se
Core Sound: www.core-sound.com
Interview with Hannu Savolainen: /article/3375
“Introduction to Sound Programming with ALSA” by Jeff Tranter: /article/6735
Similis sum folio de quo ludunt venti.
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Sponsored by AMD
Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6
Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.
Learn more about catching the bad guy in this free white paper.
Sponsored by DLT Solutions
| Dynamic DNS—an Object Lesson in Problem Solving | May 21, 2013 |
| Using Salt Stack and Vagrant for Drupal Development | May 20, 2013 |
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
| Non-Linux FOSS: Seashore | May 10, 2013 |
- RSS Feeds
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- Using Salt Stack and Vagrant for Drupal Development
- New Products
- Validate an E-Mail Address with PHP, the Right Way
- Drupal Is a Framework: Why Everyone Needs to Understand This
- A Topic for Discussion - Open Source Feature-Richness?
- Download the Free Red Hat White Paper "Using an Open Source Framework to Catch the Bad Guy"
- Tech Tip: Really Simple HTTP Server with Python
- Home, My Backup Data Center
- Please correct the URL for Salt Stack's web site
1 hour 45 min ago - Android is Linux -- why no better inter-operation
4 hours 44 sec ago - Connecting Android device to desktop Linux via USB
4 hours 29 min ago - Find new cell phone and tablet pc
5 hours 27 min ago - Epistle
6 hours 56 min ago - Automatically updating Guest Additions
8 hours 4 min ago - I like your topic on android
8 hours 51 min ago - This is the easiest tutorial
15 hours 26 min ago - Ahh, the Koolaid.
21 hours 5 min ago - git-annex assistant
1 day 3 hours ago
Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Pi Cobbler Breakout Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- 5-21-13, Prototyping Pi Plate Kit: Philip Kirby
- Next winner announced on 5-27-13!
Free Webinar: Hadoop
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
- Why should you consider the typical workload patterns when making your hardware decisions?
- Are all microservers created equal for Hadoop deployments?
- How do I plan for expansion if I require more compute, memory, storage or networking?




Comments
ALSA write up
Hi Dave,
Great write up on ALSA. When is your next one coming out?
Thanks,
Travis
Overall, good info
I found the article to be quite helpful overall. I was initially confused about setting up my system to play MIDI files. It would have been more clear if the author would have emphasized that not all sound cards have a wavetable they can use for playing MIDI. I spent several hours chasing my tail and on Google trying to play a MIDI file on my T23 laptop and an Intel 800 series chipset with AC97 sound. I slowly came to the slow realization that Timidity++ is the only hope on it.
Meanwhile, I found the brief note of his SB Live! card helpful by at least giving me a lead. I have an SB PCI-512 card that also uses the emu10k1 driver and digging out the original CD revealed a file named 8MBGMSFX.SF2 on it. A bit of Googling revealed that this was the needed file and indeed, playing MIDI files now works.
I realize some of these low-level details aren't necessarily a function of ALSA, but since much of the article was devoted to MIDI and sequencing, I think they should have been developed a bit more. For all of their popularity, modern soundboards are largely a mystery for most of us.
Once we can listen to streaming audio or a CD, most of us consider the audio to be installed. My thanks to Mr. Phillips for an interesting article with many new ideas to explore.
- Nate >>