Saturday 26 July 2008

Interactive Ukulele Tuner



Now that I teach interactive media, rather than practice commercially for a living, I sometimes get fidgety, wanting to do more of my own but never having the time.

Finally the holidays arrived and I was able to get inspired, on account of my wife buying a Ukulele. She was using an online tuning system, but it wasn't as helpful as it could have been. The problem with the online tuning system, was that it only gave audio samples of a Ukulele string being plucked. However it is much easier to tune an instrument to a continuous tone. In Uke Tuner I gave the option, plucked note, or continuous tone, so the user can choose their preferred method. Then of course I went overboard on graphics and interactivity - just for the fun of it.

You can download Uke Tuner 0.92 (Beta) here free >

Now I have had time to do it, I actually plan setting such a project to my students next year. Teaching and learning materials can be based heavily on my own source files and graphics, and best of all, I already have a demonstration piece. This is why time needs to be set aside for personal development - whether by your employer or yourself, it impacts positively on the learning experience and makes for new, and interesting projects.

For the more technically minded, graphics were produced in Fireworks then exported as PNG 32 to preserve alpha channels or SWF, for use in Flash. Audio was recorded from a Yamaha PSR-240 keyboard via a line-in cable from the keyboard's headphone socket. Sound was recorded and processed with Audacity then exported as WAV 32-bit for use in Flash. Interactivity was produced in Flash, with ActionScript 2. Flash Audio settings were set to export sound at 22Khz stereo and 128kbps. Playback speed is 30 fps to make it animate more smoothly. The application was compiled with MDM Flash Studio because it has a faster projector engine than the Flash Standalone Player, extends the ActionScript classes available in Flash with some additional functionality, and allows the creator to tweak the display options (such as turning off the blue bar at the top).

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