Why pay for a metronome if it cannot offer absolute precision? The author of Pocket Beat has compared the accuracy of Pocket Beat to nine other metronome apps for the Palm (I have not listed these apps here in the interest of being fair to the authors of these apps, but they are all available at PalmGear.com), and found that only Pocket Beat passed the accuracy test described below.
Test directions:
1. Download this .zip file -- it contains looptest.wav and 90bpm.wav
2. Load up a high quailty sound editor. I used Cool Edit 96. If you don't already have Cool Edit, you can download Cool Edit 2000 here.
3. Open looptest.wav in the sound editor and activate looping playback (Options/loop mode in Cool Edit 96)
4. Start looping playback of the looptest.wav. Ensure that a continuous tone is heard--if there is any sort of break in the tone then the sound editor is not seamlessly looping the wav file, and cannot be used or the test will be invalid
5. If the sound editor passes step 4, load 90bpm.wav and play it back in loop playback mode.
6. You will hear a beep every 2/3 of a second. This is the 90bpm tempo we will use to test the metronome.
7. Start Pocket Beat or other metronome on your Palm.
8. Make sure the tempo on the Palm metronome is set to 90.
9. Start the metronome on the Palm so that the first beat starts at exactly the same time as the looping .wav file -- hint: with Pocket Beat, hold your stylus down on the "GO!" button and release it at the exact start of a beep from the looping .wav file.
10. Now sit back and listen for a minute or two--the beats of the Palm and of the looping .wav file should stay synchronous and never diverge at all!
Caution: Those of you with drum machines, do not attempt to substitute these for the looping 90bpm.wav file. Many drum machines, including my BOSS Dr. Rhythm DR-550, play inaccurate tempos.