Tag Archives: Keynote (software)

Back in Mac: Low End Edition

Today, I’m buying an old Mac mini G4 1.25GHz. Yes, a low end computer from 2005. It’ll be great to be back in Mac after spending most of my computer life on XP for three years.

This mini is slower than my XP desktop (emachines H3070). But that doesn’t really matter for what I want to do.

There’s something to be said about computers being “fast enough.” Gamers and engineers may not grok this concept, since they always want more. But there’s a point at which computers don’t really need to be faster, for some categories of uses.

Car analogies are often made, in computer discussions, and this case seems fairly obvious. Some cars are still designed to “push the envelope,” in terms of performance. Yet most cars, including some relatively inexpensive ones, are already fast enough to run on highways beyond the speed limits in North America. Even in Europe, most drivers don’t tend to push their cars to the limit. Something vaguely similar happens with computers, though there are major differences. For instance, the difference in cost between fast driving and normal driving is a factor with cars while it isn’t so much of a factor with computers. With computers, the need for cooling and battery power (on laptops) do matter but, even if they were completely solved, there’s a limit to the power needed for casual computer use.

This isn’t contradicting Moore’s Law directly. Chips do increase exponentially in speed-to-cost ratio. But the effects aren’t felt the same way through all uses of computers, especially if we think about casual use of desktop and laptop “personal computers.” Computer chips in other devices (from handheld devices to cars or DVD players) benefit from Moore’s Law, but these are not what we usually mean by “computer,” in daily use.
The common way to put it is something like “you don’t need a fast machine to do email and word processing.”

The main reason I needed a Mac is that I’ll be using iMovie to do simple video editing. Video editing does push the limits of a slow computer and I’ll notice those limits very readily. But it’ll still work, and that’s quite interesting to think about, in terms of the history of personal computing. A Mac mini G4 is a slug, in comparison with even the current Mac mini Core 2 Duo. But it’s fast enough for even some tasks which, in historical terms, have been processor-intensive.

None of this is meant to say that the “need for speed” among computer users is completely manufactured. As computers become more powerful, some applications of computing technologies which were nearly impossible at slower speeds become easy to do. In fact, there certainly are things which we don’t even imagine becoming which will be easy to do in the future, thanks to improvements in computer chip performance. Those who play processor-intensive games always want faster machines and they certainly feel the “need for speed.” But, it seems to me, the quest for raw speed isn’t the core of personal computing, anymore.

This all reminds me of the Material Culture course I was teaching in the Fall: the Social Construction of Technology, Actor-Network Theory, the Social Shaping of Technology, etc.

So, a low end computer makes sense.

While iMovie is the main reason I decided to get a Mac at this point, I’ve been longing for Macs for three years. There were times during which I was able to use somebody else’s Mac for extended periods of time but this Mac mini G4 will be the first Mac to which I’ll have full-time access since late 2005, when my iBook G3 died.

As before, I’m happy to be “back in Mac.” I could handle life on XP, but it never felt that comfortable and I haven’t been able to adapt my workflow to the way the Windows world works. I could (and probably should) have worked on Linux, but I’m not sure it would have made my life complete either.

Some things I’m happy to go back to:

  • OmniOutliner
  • GarageBand
  • Keynote
  • Quicksilver
  • Nisus Thesaurus
  • Dictionary
  • Preview
  • Terminal
  • TextEdit
  • BibDesk
  • iCal
  • Address Book
  • Mail
  • TAMS Analyzer
  • iChat

Now I need to install some RAM in this puppy.

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iRiver H120 (Digital Audio Jukebox)

Recently purchased a brand new iRiver H120 with remote control on eBay from OutletMP3. Paid 132.50$ plus 18$ shipping. Also purchased a 3-year warranty through SquareTrade for 16$.
Item arrived as described, with both the European power adapter (in the original box) and a North American power adapter (in the shipping box). The remote control is included in the package but is outside of the original box. OutletMP3 sells those iRiver H120 devices with or without remote control (usually at about the same price).
Yes. “Would do business with OutletMP3 again.” (As it turns out, they sell iriver products quite frequently on eBay and they have an eBay store with “Buy It Now” iRiver H120 devices without remote for 150$ each.)
The best things about this device are its recording features. Those iRiver H1x0 models can record uncompressed sound in WAV format at 16bit with a sampling rate of 48 kHz (so-called “DAT quality”), 44.1 kHz (so-called “CD-quality”), or lower (“FM-quality,” “voice quality”). It also records directly to MP3 files (with the official firmware) in a variety of encoding settings (up to 320 kbps). It has an internal microphone for voice dictation as well as an input for external microphone, analog line in, or optical in.
The box includes a surprisingly decent lavaliere-style monophonic microphone. Not an excellent microphone in any way but clearly better than one might expect (though Laith Ulaby had told me that this microphone was decent).

In terms of operation, the unit has some strengths. The overall interface is much less convenient than that of the iPod, say, but the battery lasts longer than most iPods (for playback). The iRiver H120’s remote has a small LCD screen which shows enough information for most needs making it possible for me to keep the H120 in my pant pocket and operate the device with the remote. While, among portable players, only the iPod has native support for AAC and lossless formats, iRiver players support Ogg Vorbis and WMA. Haven’t done anything in Ogg format yet but it might be an interesting option (though it does make files less compatible with other players).

Apart from navigation and interface, the main differences with my previous iPod 2G have to do with iTunes integration. The iPod‘s synchronization with iTunes made it rather convenient to create and update playlists or to transfer podcasts. iRiver’s models may not be used in the same fashion. However, the iRiver H120 can in fact be used with iTunes through a plugin meant for Archos players. However, this plugin seems to have some problems with a few files (probably because of invalid characters like ‘/’ and ‘:’ in filenames), generates non-working playlists on Mac OS X, and puts all filed in an “Artist/Album” hierarchy which makes iRiver navigation more complicated.

What surprised me somewhat was that the H120, a USB 2.0 device, works perfectly well with my old iBook (Dual USB) which only has USB 1.1 ports. No need for special drivers and the device then works pretty much like a (20GB) USB drive. Since the iRiver H120 works as a USB drive, it’s easy to transfer files to and from the device (contrary to the iPod which makes somewhat more difficult). All audio files can be put at the root level on the iRiver and audio recordings made on the iRiver are in the “RECORD” folder at the root level of the drive. While the iBook’s USB 1.1 ports are much slower than USB 2.0 ones, they do the job well enough for my needs. (Will be going back to my entry-level emachines H3070 in a few days.) A 400 MB file recorded on the iRiver (about 40 minutes of 16 bit stereo sound at 44.1 kHz) transferred to the iBook through USB 1.1 in less than ten minutes. Slow, but bearable. My old iPod used a Firewire 400 (aka IEEE 1394 or i.Link) connection which is about the same speed as USB 2.0 in most conditions. My entry-level emachines desktop has both USB 2.0 and Firewire 400 ports (thanks to an inexpensive Firewire card).

Was thinking about putting Rockbox on the H120 but SquareTrade tells me that it may void their warranty, which would be an inconvenient. The Rockbox has some neat features and seems safe enough to use on “production machines,” but its features aren’t that compelling for me at this point.
The H120 has a radio (FM) tuner, which could be useful to some people but isn’t really a compelling feature for me. Haven’t listen to much radio in the past several years. Podcasts are soooo much better!

Speaking of podcasts… One of my reasons for purchasing this machine (instead of a more recent iPod) was the ease of recording. This is clearly not a professional recording device but the sound quality seems quite decent for my needs at this point. Should be using it to record lectures and distribute them as podcasts or “lecturecasts” (yeah, ugly name, sorry!). In my mind, educational podcasting can supplement lectures quite nicely. Have been to a few workshops and presentations on technology use in teaching and most people seem to agree that technology is no replacement for good pedagogy but that good pedagogy can be supplemented and complemented (if not complimented!) by interesting tools. Had been thinking about a recording iPod to integrate podcasts with course material. It would have been quite useful, especially in connection with iLife and iWork. But an iPod 5G (with video) is already much more expensive than my iRiver H120 and the add-ons to enable 44.1 kHz / 16 bit recording on the iPod are only now getting to market at a price almost half that of my brand new iRiver H120. Plus, though the iPod is well-integrated with iTunes on Windows, iLife and iWork applications are only available on Mac OS X 10.4 and, thus, will not run on the entry-level emachines H3070 which will become my primary machine again in a few days.
In other words, my ideal podcasting/lecturecasting solution is out of my reach at this point. And contrary to tenure-track faculty, lecturers and adjunct faculty get no technology budget for their own use.
Ah, well…

Still, my iRiver H120 will work fine as a recorder. Already did a few essays with voice and environmental sounds. The lavaliere microphone was quite convenient to record myself while taking a walk which sounds like an unusual activity but was in fact quite relaxing and rather pleasant. In terms of environmental sounds, the same microphone picked up a number of bird songs (as well as fan noises).
Among the things that distinguish the H120 from a professional recorder is the lack of a proper calibration mechanism. It’s not possible to adjust the recording levels of the two channels independently and it’s even not possible to adjust volume during recording. (There’s a guide offering some guidance on how to work within those constraints.) Quite unsurprisingly (for what is mostly an MP3 player) but also making the device less of a professional device, its jacks are 3.5 mm “stereo mini-plugs” (instead of, say, XLR jacks). For that matter, the iRiver H120 compares favourably to several comparably-priced MiniDisc recorders, even Hi-MD models. Did field research with a used ATRAC 4.0 MiniDisc recorder. That setup worked somewhat adequately but this iRiver H120 is much of an improvement for me.

Got a few pet peeves about the iRiver H120. For instance, it has no actual clock so recorded files do not carry a timestamp. A minor quibble, of course, but it would have been useful. The overall navigation is as awkward as that of my first MP3 device, the RioVolt (which also used iRiver firmware). One navigational issue is that navigating up and down in the folder hierarchy is done through the stop and play buttons instead of, say, using one of the three jog switches on the remote. Some functions only work when the device is stopped while others work while it’s playing. Switching from hard-disk playing to recording or to FM is a bit awkward and cumbersome. The unit takes a while to turn on and doesn’t really have a convenient sleep mode. While it is possible to resume playing on a track that has been stopped, this feature seems not to work every time. Fast forwarding rate (“scan speed”) is set in a menu instead of being dynamic as on the iPod. The device doesn’t support ratings or, really, descriptions (although Rockbox might be able to support those).

Also got a few well-appreciated features, apart from those stated above. The EQ and SRS presets are appropriate and relatively easy to use. Contrary to the iPod 2G it is possible to play files at a higher rate (increasing the “playback speed”) making it possible to listen to voice at a higher speech rate (and higher frequency). It’s also possible to delete files directly from the device.

At any rate, that’s already a long entry and experience with my H120 will probably push me to write more about the device.

Feel free to comment or send questions through email.


Lecturecasts (Podcast Lectures, Lecture Podcasts)

UPDATE: Purchased an iRiver H120 jukebox/recorder.

Was commenting on Tama Leaver‘s post about watching his own lecture videos on a fifth-generation iPod. There’s a lot of room for experimentation with these methods and technologies.

Apple is well-positioned in this sphere, actually. Its iLife and iWork suites can integrate content in different formats, some of which might actually work on the iPod (Keynote to Quicktime H.264, GarageBand to AAC enhanced podcast). Furthermore, Apple has this iTunes U project for hosted and protected podcast content. Not to mention the obvious point about Apple’s iPod success. Don’t have the necessary material to try it out but it should be relatively simple to create full-featured lecture podcasts using these tools. In fact, there’s already a product out meant to simply this integration (can’t try it out myself, unfortunately).
With at least three microphones for iPod 5G coming out Real Soon Now (XtremeMac’s MicroMemo, Belkin’s TuneTalk, and Griffin’s iTalkPro), life can become quite fun indeed for those of us who’d like to “lecturecast.” It’s an even better time to turn to academic podcasting with so many podcasting projects springing up at such diverse institutions as IUSB, Duke, UdeM, Brandeis, and IUB. The open-source course management system Moodle now supports podcasts. So does Sakai, the free/open knowledge management project. Of course, educational podcasting isn’t new. But it’s gaining steam.