Archive for the ‘Applications’ Category

Post install Ubuntu 10.04

Monday, May 3rd, 2010

The persistence problem with the yellow box identification message has resurfaced …

Handbrake is being rebuilt. See the PPA page for huntkerk – it says “waiting to build” four and a half hours ago. When its done, a “sudo add-apt-repository ppa:hunter-kaller/ppa” followed by an update should allow installing handbrake.

Some post install commentary: The Silent Number: Ubuntu 10.04 Post-Install Guide: What to do and try after installing Lucid Lynx!
and
Lucid 10.04 – All the stuff people forget to tell you – Flash, Codecs, Medibuntu, Packages, Fixes. « SilverWav’s Journal

Also don’t forget the manual Getting Started with Ubuntu for the ‘official’ handbook on installing and using 10.04.

It’s not just me trying to make sense of wx data

Tuesday, November 24th, 2009

A bit over ten years ago I was pulling weather station data from the web along with satellite pictures and sounding data to support fog research at SFO. I also needed historical data for pattern analysis. It was a good exercise in gaining familiarity with Java but finding good data and translating that into some usable structure was a challenge. The recent escape of a lot of stuff about climate research in England tells me that others encountered similar headaches. See Charlie Martins note about how Climategate Computer Codes Are the Real Story.

“Harry” is starting off with two large collections of data on a UNIX or UNIX-like system (forward slashes, the word “filesystem”) and only knows very generally what the data might be. He has copied it from where it was to a new location and started to work on it. Almost immediately, he notices a problem:

Poor Harry is in the first circle of programmer hell: the program runs fine; the output is wrong.

At least he had a means to tell if his program was working as intended or not. All I had to go on was spurious results, or what looked strange. Of course, if the idea is to find things out, not knowing what the result is to be is what it is all about.

Wine for DeScribe

Tuesday, June 2nd, 2009

OK, there is the Ubuntu community documentation page for Wine – I agree, it’s better to stick with the standard repositories and application installation if you can. So that’s a “sudo aptitude install wine” and that installs winbind{a}, wine, and wine-gecko{a}.

Then run winecfg to configure the directories needed and set things up. I choose NT 4.0 for the Windows Version as that is closer to what DeScribe expects. Then is was time to look for an installed application – found one in the archive for a Win98 system. Restored that backed up directory to ~/wine/drive_c/ so it’d come up in the same location it expected (I tried it elsewhere but it couldn’t find its registration key then).

Hey! it runs. Now to find those old DeScribe Word Processing files. The filesystem root is supposed to be mounted as z: – Looks like it works! There is some font fun and whatever but I should still be able to recover most of the file.

Document parts and pieces

Friday, May 29th, 2009

It seems a lot of people write documents much like the guy who builds his house by bringing a few boards home every week. It is all ad hoc and tacked together. Christian Paratschek describes a better way in Text Formatting with OpenOffice.org Writer. The idea is that a document is make of parts and pieces. Open Office provides a catalog of common parts and pieces and using these can make building your document a much more effective process.

In a document, the key part is called a style. The catalog of parts is a style sheet.

What Christian notes is that people usually just take text and adjust it directly. The style sheet idea means that you identify text and associate it with a style that describes its attributes. Instead of selecting the salutation and setting it left justified with no indent you just label it as a salutation that has those attributes.

As with many things computer, it doesn’t make too much of a difference for trivial one-of projects. But, if your project gets towards the large and complex or is something you do many times with small variations, a bit of effort up front can pay big dividends.

Fax trends and implications

Friday, March 6th, 2009

Ten years ago, the office fax was a critical part of business. Back then, the transition was from stand-alone analog fax machines to scanners and modems connected to a computer. Even a small office (like ours) could integrate a database to a fax program and send out fax blasts for clients. Of course, the ease of being able to send out facsimile ‘en masse’ meant that abuses occurred and that stimulated legislation and regulation to inhibit unsolicited faxing.

Nowadays, it seems e-mail attachments are taking over a lot of the fax volume. Fax is still needed, though. Part of this is due to how the law treats facsimile documents and how it defines them. PayPal is a case in point. They got into a banking ruckus about the identity of clients and that meant they needed to verify the status of those clients representing themselves as, for instance, nonprofit associations. One of the ways to satisfy PayPal’s needs was to get a fax cover page from them with case identifying bar codes. Fill in the blanks on the cover page, attach the necessary documentation, and fax it back so they then had proper documentation on file to satisfy regulatory requirements.

Since the very nice PMFax on OS/2 became a bit long in the tooth, I have been using Hylafax on an Ubuntu server with a couple of US Robotics v.everything modems. I have also installed it on the eBox machine. Hylafax, like eBox, is a bit more potent than needed for a SOHO environment. That means that setup and management is a bit of a pain.

eBox does not yet support fax services. It is also not a feature found in network appliances like the ReadyNAS that provides for many other protocols and for printer sharing. That is one indication that fax service is a rather low priority. A fax server such as Hylafax can be installed alongside eBox without encountering conflict problems. It also seems possible to install on a well endowed NAS as those have USB ports (modern modems are even powered via USB), print sharing, media streaming service, and user access controls already. A fax server doesn’t require that much processing power so it shouldn’t overload the computing capabilities of the device.

An alternative I am testing is an all-in-one device with print, fax, and scan. The HP M1522nf was on sale with a good rebate a while back (thanks slickdeals.net). The biggest problem with this it is limited in its Linux software and doesn’t cache incoming faxes in a way you can avoid printing them but just download from the machine’s web server. It does have spam fax blocking so you can reject faxes with selected fax ID’s (which are required by regulation but sometimes ignored).

With an automatic fax detector on your line (see Command Communications for example), you can filter out junk faxes and often eliminate the need to print any fax you receive. The fax can contribute directly to your data store. With the proper setup, it can be a convenient means to communicate. It was ten years ago but is a bit more of a pain now.

These parts and pieces add up. Simplifying the hardware would be nice and it would also reduce the residual power drains. That might only be a few dollars but it does add up.

OOo tips from PCMAg

Saturday, February 21st, 2009

OpenOffice.org: 7 Things You Didn’t Know You Could Do could get you thinking. Did you know about these capabilities of Open Office?

1) you can open multiple windows on single file to edit various places in a document without having to scroll back and forth. This facilitates cross referencing and internal consistency.

2) you can import a lot of different legacy office suite formats which makes OOo handy for recovering archives. (I just wish it would import DeScribe files).

3) There are an easter eggs in the spreadsheet program, type “=GAME(“StarWars”)” in a cell and see what happens.

4&5&7) If you don’t like the way OOo does things, odds are you can fix it in tools for customizing and options.

6) OOo supports macros and its own scripting language.

As FOSS, Open Office has its forks and branches and people with better (or different) ideas. One of the major such efforts is Go-oo which brags about Microsoft Works import filters and better Microsoft binary file support. It has connections to Novell which may or may not be important to some. It is the version of OOo used in Ubuntu distributions.

Repair kit for Windows techs

Sunday, February 15th, 2009

A Computer Repair Utility Kit You Can Run From a Thumb Drive at ReadWriteWeb describes a Computer Repair Utility Kit that will run on a thumb drive. What is handy about this posting is that it provides links to the utilities in the kit as well as a link to the compilation put together by the Australian site Technibble.

If you don’t spend all your time with Windows, a collection like this can be a good way to find out what can be, or needs to be, done to keep a Windows system in top shape.

Video transfer – how its done overview

Saturday, February 14th, 2009

This project started with a friend who wanted to upgrade his PC. He found a deal at $700 with a powerful CPU, lots of memory, good hard drive space, and multi-media capabilities. These multi-media capabilities included a TV card and a remote control. The software was the Windows Media Center in Vista. I got the TV card and remote control as he didn’t have any interest in those for his needs!

The TV cards have TV tuners and they also have composite and S video inputs. That means you can connect a video tape player output to them to capture taped video. The media center will write this video out as a file on the hard drive at the rate of several gigabytes per hour. Once you have this video file, you will want to edit it and then convert it to a format that uses less space and can be viewed on other devices.

The key concept with video files that you need to understand to get the best success in converting and editing them is that there are containers and codecs. Container formats specify how audio and video files work together. The codecs, or coder/decoder, describe the way the audio and video information is encoded as digital information.

There are scads of containers and codecs and figuring out which to use can be difficult. The standard movie on a DVD is good for DVD players but it is not highly compressed and contains many components that allow it to be put on older DVD media file systems.

Many DVD players can also play AVI files as long as they contain video in xVid format and audio in MP3 format. These codecs allow for much smaller video files than the ones standard DVD’s use. Modern AV equipment can also use more space efficient codecs and containers that also provide other features.

In order to convert the video from the TV card to something smaller and more useful, I use the following applications.

For editing – mainly cropping out advertisements and selecting clips – I use Avidemux. This can do transcoding but I use It mainly just for cropping.

For transcoding (making AVI files) I use HandBrake. This has a focus on converting DVD’s but also works well for converting the TV card video files to an AVI container with the proper codecs for my DVD player.

To create DVD’s I use DeVeDe. This program makes it easy to select video files into titles and set the various menu options for a standard DVD. It will also adjust compression ratios to fit the space available on a DVD.

The only problem is that these files take a lot of hard drive space. Now I have to shovel things around and make backups to DVD in order to get room to breathe.

Scribefire update with WordPress

Wednesday, February 11th, 2009

I use Scribefire to insert posts to my WordPress blogs. The latest Scribefire update changed things so posts were no longer posted. HoodaThunk? found a solution. The fix is by using the settings icon that is one of 5 over in the left margin — “Try unchecking the “Automatically insert invisible tracking pixel” checkbox in the Publishing tab of ScribeFire’s settings.” — we’ll see if it works for me, too.

Scribefire is an interesting balance between a utility and a not-necessarily-bad trojan. (see Download Squad description or performancing or More Impressions Of ScribeFire QuickAds Beta at Online Grandma). As a utility, it makes for very convenient post authoring and uploading while browsing the web. As a trojan, consider the latest feature that will help you find illustrations for your posts or the integration with blog advertising. This latest glitch is a ‘reverse trojan’ in that it wouldn’t put the post inserted into the blog.

Scribefire is very useful and very convenient. That means more posts, more timely posts, and more blog content. That can mean a more useful or interesting blog. Now what I have to do is to look into the style and presentation and then, perhaps, check out the advertising possibilities.

kpatience

Sunday, December 7th, 2008

An upgrade to the solitaire game provided a new look and feel. Kpatience 3.0 on KDE 4.1.3 The autodrop is slowed down. There is an indicator to tell you whether or not the game can be won at your current point. Game -> Statistics will give you the rundown on how many games you’ve played and your winning odds.

The game status can be an interesting item when coupled with the ^z back up a move. You can find certain innocuous plays that change the status from winnable to not winnable, back up and go a different direction. Often it is a card in the stack that would be blocked. Figuring out what can be interesting.

Too much time playing solitaire on your computer is an indication you need a faster computer or network connection, right? I mean, the only reason to use such applications is to keep busy waiting for the document to come up or some such?

UPDATE: The new version doesn’t seem to do that annoying ‘knotify’
thing when you win; a long stack going down to the bottom of the display window will shrink if you add cards that would otherwise take the stack off the bottom – more nifty animation.