Making Music With Your Keyboard
It is extremely easy to get a tiny little keyboard to generate melody in your Linux box. In fact, you can play hundreds of instruments.
Here's how I did it in my Fedora Core 6 and 7 laptops:
1. timidity++ - This can turn MIDI into audio (a synthesizer)
2. vkeybd - A virtual keyboard for your X desktop.
To install in Fedora Core 6 or 7, just type the following command:
# yum -y install timidity++ vkeybd
Start timidity (and connect to ALSA). Note that in Fedora 7, I had to type esd in another terminal before the following command:
1. $ timidity -iA 2. Start vkeybd: $ vkeybd 3. Join the keyboard output and the synthesizer input together. Identify the correct client and port numbers of the keyboard and the synthesizer (TiMidity): $ cat /proc/asound/seq/clients 4. Join them together (arguments should be in correct order - source first). $ aconnect 129:0 128:0
Now you can play. To change the instrument, see the Virtual Keyboard options (View->Program List). If required, increase the volume by using timidity option -An (e.g.: $ timidity -A300 -iA). timidity and vkeybd have many other options to get different behaviors. See the manual pages for details.
This Tech Tip comes from Kamal in Sri Lanka. Thanks, Kamal!
Instant fame is easy at Linux Journal. Just send us your useful Tech Tips to share with the Linux Community, and we'll send you a cool t-shirt for your efforts!
Please note: Tech Tips featured in this specific section of LinuxJournal.com are kindly brought to us by readers and are not necessarily tested by LinuxJournal.com editors.
Fast/Flexible Linux OS Recovery
On Demand Now
In this live one-hour webinar, learn how to enhance your existing backup strategies for complete disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible full-system recovery solution for UNIX and Linux systems.
Join Linux Journal's Shawn Powers and David Huffman, President/CEO, Storix, Inc.
Free to Linux Journal readers.Register Now!
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Sony Settles in Linux Battle
- Libarchive Security Flaw Discovered
- Profiles and RC Files
- Maru OS Brings Debian to Your Phone
- Readers' Choice Awards 2014
- Snappy Moves to New Platforms
- The Giant Zero, Part 0.x
- Understanding Ceph and Its Place in the Market
- Git 2.9 Released
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide