Posts Tagged ‘codec’

Show Notes #098

Introduction:

  • A Futile Exercise in Focus, or perhaps a feudal exercise. Stay tuned and find out.

Announcements:

  • Listen to us live Tuesday evenings (in the USA), or subscribe and receive access to the unedited recording and other things. Visit the website for details.
  • We’re in dangerous proximity to episode 100, so send in comments, suggestions, voice mail, Facebook, Google+, or carrier pigeons.
  • All you podcasters out there, join the Black Sparrow Media network.
  • The 2013 Dayton Hamvention will be May 17-19, 2013. Russ is hoping to have the LHS booth again, but we need your help. Please donate if you can. Every little bit helps.
  • Kevin O’Brien, Publicity Director for the Ohio LinuxFest, tells us that they have set up a brief survey to gather ideas for the 2013 Ohio LinuxFest. Visit http://ohiolinux.org/ to find the survey.
  • Northeast Linux Fest will be March 16th and 17th, 2013, at Harvard University in Cambridge, Massachusetts.

Topics:

  • Russ’ Raspberry Pi adventures continue. His Echolink node 54711 is now up and running on a Raspbian-based Raspberry Pi with svxlink and Qtel. Russ had to insert “dwc_otg.fiq_fix_enable=0″ into the /boot/cmdline.txt file in order to fix a problem with the onboard Ethernet card locking up. Since then, all has been well.
  • Amateur Radio Pi is a forum with the tagline: The interactions between amateur radio and the Raspberry Pi.
  • The Society for the Preservation of Amateur Radio (SPAR) will conduct a Winter Field Day, beginning 1700Z on January 26, 2013 and ending at 1700Z January 27th.
  • HamSphere is a software Amateur Radio simulator that allows licensed radio amateurs and unlicensed enthusiasts to communicate with one another using a virtual transciever over the Internet. It was designed by Kelly Lindman, a radio amateur with callsign 5B4AIT. The software runs under Windows, Mac or Linux. There’s also a Wikipedia page for more information.
  • RepeaterBook is an Android application for locating amateur radio repeaters. There are lots of options, including repeater types and modes (D-Star, etc). It also supports the BlueCAT Yaesu FT-857/FT-817 interface that allows you to tap a repeater entry in RepeaterBook on the phone and it will set your radio frequency.

Feedback:

  • Comment via the Web site from Leif, KC8RWR, with another attempt at explaining hard and soft links, which we were discussing in episode 95. Thanks, Leif.
  • Leif also commented about difficulties hearing a mobile radio without a speaker in the head unit.
  • A very strange voice mail from the Radio Gangsta, aka Rich, KD0RG, from the LowSWR podcast.
  • E-mail from gasgasmike, asks if it would be possible to use short wave radio to provide wireless Internet service. Our hosts discuss the practical difficulties with such a scheme. (Note: the use of the amateur portions of the radio spectrum for commercial purposes is expressly prohibited by the FCC.)
  • Jeff, KC2QZO, sends his appreciation of our discussion of Codec2 in episode 85.
  • Russ mentions that there is another low-bitrate codec is being developed: The Opus Interactive Audio Codec.

Contact Info:

Music:

  • None this episode.

LHS Show Notes #058

Introduction:

Announcements:

Feedback:

  • Ilan Rabinovitch writes to tell us about the Southern California Linux Expo (SCALE 9X), February 25-27, 2011.
    Thanks, Ilan. Sorry we couldn’t include this earlier.
  • Kevin, KB9RLW, writes in response to Episode 51 that he agrees that Linux is a good fit for the amateur radio community for several reasons: added flexibility, security, and more choices. Even Windows 7 is still vulnerable and he points to a recent Sophos test. He keeps a WindowsXP virtual machine, in VirtualBox for those Windows applications he must run, though WINE usually works fine. He’s also a fan of The GIMP, OpenOffice, Inkscape, and Scribus. Good points, Kevin, thanks.
  • Dave, KA6YQ, points us to instructions for running the DX Lab suite in Linux, which, unfortunately, just says that you can run their software in a Windows XP virtual machine, which isn’t the same as running it on Linux.
  • Rick, K9AO, tells us of a native Linux EchoLink client SvxLink. Russ uses the Windows EchoLink program under WINE, but checked out the program. He tried building it from source, because he’s running Debian instead of Fedora, using the posted instructions, without success, but he’ll keep trying.
  • Joseph C. sent a donation to the LHS Dayton Hamvention fund. Thank you very much, Joseph!
  • Jonathan Nadeau of Frostbite Systems says that if you want to install the extra codecs in Debian, you must first add the multimedia repository to your sources list file (/etc/apt/sources.list). Add the repo, then install the codecs you want. Linux Mint Debian does much of this by default.
    Richard spent most of a day trying to uninstall Gnash and install Flash… without success. And it’s true that IceWeasel and IceDove are the same as Firefox and Thunderbird, but they are one release back. Richard prefers running the current versions.
  • Russ tells us that by adding the following line to your /etc/app/sources.list file
    deb http://www.debian-multimedia.org testing main non-free

    and then doing an apt-get update, you’ll be able to install the non-free codecs.

  • Russ and Richard then talk about removing Gnash:
    dpkg --remove --force-all gnash
  • Russ recommends GhostBSD if you’d like to play with BSD.
  • John, EI7IG, writes that Episode 53 was a “cracker” and that he’s a fan of fldigi, too. He also tells us of APRSISCE32, an APRS client for Windows written by Lynn, KJ4ERJ. John has been running IPV6 in the shack and points us to this article by Geoff Huston. Thanks, John.
  • Larry Bushey and Tom Chaudoir of the Going Linux podcast send their regards.
  • Russ gives an impromptu review of the Linux Reality podcast by Chess Griffin.
  • LHS is a sponsor of the upcoming Indiana LinuxFest, and Lord D. sent his appreciation.
  • Mogens, OZ1AKN, asks for help on a couple of topics.Question: Is it possible to automatically start a program under WINE?
    Russ responds with:To make a program under WINE start at boot, look at /etc/rc.d/skeleton for a sample. Copy the skeleton file to the name of the WINE app you want to start, then edit it to start whatever you want to start, such as /usr/bin/wine/echolink.If you want a program to start when the X session starts, click:
    menu -> system -> preferences -> statup applications -> Add a startup app
    In the dialog, give it a name and add the command: /usr/bin/wine <application path>

    Question: How do you reinstall Windows in a dual-boot setup?

    Russ responds with:

    It’s easier to install Windows first, then Linux, as the Linux boot loader will automatically detect Windows and include it in the boot menu. If you install Linux first, then Windows, Windows will overwrite the Linux boot loader.

    Otherwise, if you’re trying to repair a dual-boot system, try booting with a system rescue CD to repair GRUB.

    Google “linux boot ntldr ” to find instructions to tell the Windows NTLDR to also boot Linux.

  • Tom H. sent a donation to the Dayton Hamvention fund. Thanks, Tom!
  • Frazer writes that the LHS Facebook fanpage seems to be geoblocked in Canada. (Russ has fixed the problem. Thanks, Frazer.)
  • Jim, KG9EQ, discovered the podcast while searching for QSSTV and wrote to share his appreciation for the website. Thanks, Jim.
  • B.B. in the chat room asked if Jerry Taylor has resumed the Practical Amateur Radio podcast. (Richard’s comments were recorded before Jerry resumed recording episodes.)
  • Paul, KC9QYB, has resumed his Teen Radio Journey podcast.
  • Brady and Rich recently released another episode of the Low SWR podcast.
  • Finally, a note to the ICQ Podcast: We encourage Colin to talk more!

Contact Info:

LHS Episode #058: Nothing But Edits

I have to say this was probably the hardest episode to put together so far. I managed to not record the first 20 minutes of my side of the episode. Then there were bits from Episode #057 that needed to be put in. I recorded secondary items that didn’t match up with the original first take. And somehow I think I managed to get it all put together and make it make sense.

Hopefully we will see everyone at Indiana Linux Fest this weekend in Indianapolis. If you can’t make it, be with us in spirit. Thank you to our listeners for all your support. Please continue to help us get to Dayton if you can, and remember to tell a few of your friends about us.

73 de The LHS Guys


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