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.
Today’s modular x86 servers are compute-centric, designed as a least common denominator to support a wide range of IT workloads. Those generic, virtualized IT workloads have much different resource optimization requirements than hyperscale and cloud applications. They have resulted in a “one size fits all” enterprise IT architecture that is not optimized for a specific set of IT workloads, and especially not emerging hyperscale workloads, such as web applications, big data, and object storage. In this report, you will learn how shifting the focus from traditional compute-centric IT architectures to an innovative disaggregated fabric-based architecture can optimize and scale your data center.
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
| 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 |
| Trying to Tame the Tablet | May 08, 2013 |
| Dart: a New Web Programming Experience | May 07, 2013 |
- RSS Feeds
- New Products
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- Drupal Is a Framework: Why Everyone Needs to Understand This
- A Topic for Discussion - Open Source Feature-Richness?
- Home, My Backup Data Center
- Developer Poll
- Dart: a New Web Programming Experience
- May 2013 Issue of Linux Journal: Raspberry Pi
- What's the tweeting protocol?
- Reply to comment | Linux Journal
32 min 33 sec ago - Web Hosting IQ
2 hours 6 min ago - Thanks for taking the time to
3 hours 43 min ago - Linux is good
5 hours 40 min ago - Reply to comment | Linux Journal
5 hours 58 min ago - Web Hosting IQ
6 hours 28 min ago - Web Hosting IQ
6 hours 28 min ago - Web Hosting IQ
6 hours 29 min ago - Reply to comment | Linux Journal
9 hours 29 min ago - play with linux? i think you mean work-around linux
17 hours 56 min ago
Enter to Win an Adafruit Prototyping Pi Plate 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 Prototyping Pi Plate 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
- Next winner announced on 5-21-13!
Free Webinar: Linux Backup and Recovery
Most companies incorporate backup procedures for critical data, which can be restored quickly if a loss occurs. However, fewer companies are prepared for catastrophic system failures, in which they lose all data, the entire operating system, applications, settings, patches and more, reducing their system(s) to “bare metal.” After all, before data can be restored to a system, there must be a system to restore it to.
In this one hour webinar, learn how to enhance your existing backup strategies for better disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible bare-metal recovery solution for UNIX and Linux systems.




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 >>