Power Tunes Playback
Pages: 1, 2
A Few Digitizing Comments
One thing that I noticed at the wedding reception was that the MP3s sounded good over the PA system. Real good. So I'm thinking that they probably weren't ripped at 128 kbps.
Personally, I encode everything at 192 kbps, and it stands to reason that you might want to also if you're thinking about going into the music for hire business.
If you have Ogg Vorbis files that you want to add to your DJ playlist,
you can do so with a couple of minor adjustments. First, I recommend that
you download the
OggVorbis.component from the QuickTime Components
Project. I've tested this component with QT 6.1.1, and it works
great. Add the component to your QuickTime Library
(System/Library/QuickTime), then launch the QT Player. (You might have to
change the permissions for the QuickTime folder before you're allowed to
drag in the component file.) Now you can play Ogg Vorbis tunes in
QuickTime, which also means that if you have the Pro version, you can
export to MPEG-4 audio. Both iTunes and Tactile12000 can play
MPEG-4s. You're in business!
If you want to work strictly in the Ogg Vorbis format because it is an
"open, patent-free, professional audio encoding and streaming technology
with all the benefits of Open Source," then there are a number of players that work on
Mac OS X. You can certainly rig a decent DJ setup using some of this
software and a little ingenuity. If you use the QuickTime Ogg component,
it also allows you to export other formats to
The whole idea here, whether it be Ogg Vorbis, MP3, MPEG-4, or another compressed format, is the ability to build vast music libraries on a laptop instead of carting around hundreds of CDs. Once the files are in the computer, it is so much easier to search for them, build playlists, and adjust your program on the fly.
You could also spend lots of money doing this. The options I'm presenting here are either free or very low cost. If you're a serious audiophile, then this may seem like child's play to you. But if you're a music lover with a sizable collection and a laptop, you might be able to help out at the next big family party.
Speaking of the event itself, don't forget to sound check your setup before the show starts. If you're using iTunes, work with its built in equalizer to get "just the right sound" for the room. Have a helper stand in different spots and signal to you while you adjust the EQ and volume. Make sure you check the bass setting from the back of the room where it will probably be the easiest to discern.
A handy piece of hardware for this type of work is the Griffin PowerMate multimedia controller. The PowerMate provides you with a nice big metal knob for volume control instead of using a mouse, or even worse, the trackpad.
For events on a smaller scale, such as patio parties and hotel room beer bashes, take a look at the Sony SRS-T77 Folding Travel Speakers that are available at the Apple Store for $79 US. These little guys put out 4 watts of power with a frequency response of 100-20,000Hz. Yet the whole unit weights less than 13 ounces. The sound is great, and the gun metal gray and black design goes perfectly with a TiBook. I used them at my last user group demo with 75 people in the room. The music reached the back of the room no problem. After the session, I got more questions about the speakers than the talk itself.
Don't be tempted by the less expensive SRS-T55s. They don't sound nearly as good. Stick with the SRS-T77s, bring an extra set of AA batteries, and with your OS X laptop you can power a party just about anywhere.
Until just a few days ago, I'd never realized that a 1"-thick PowerBook could replace the DJ's entire cart full of CDs and other paraphernalia. DJs can now travel light and apply the power of Mac OS X to their performances. I've only scratched the surface of this particular vinyl subject, just enough to set your mind spinning. Let's crossfade this conversation into the TalkBacks below.
Going back to the iPod for a minute... I've come to appreciate this little device even more when I travel long distances, such as the flight to and from New Jersey for this last wedding. Seems like it never runs out of juice, I always have music with me plus a couple Audible books to fall back on, and it even becomes my timekeeper with its big illuminated clock face that's easy to read in all conditions. It's 6 hours flight time coming home in a headwind from the East Coast, so my Powerbook battery tends to crap out during the home stretch. That's when I discovered that Pong can actually be a lot of fun, even with a thumbwheel. I'm pathetic though: my highest score on the last trip was a dismal 136. I'm blaming it on air turbulence.
Derrick Story is the author of The Photoshop CS4 Companion for Photographers, The Digital Photography Companion, and Digital Photography Hacks, and coauthor of iPhoto: The Missing Manual, with David Pogue. You can follow him on Twitter or visit www.thedigitalstory.com.
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