© Bofinit Corporation, 2003
Tunerrr is a simple musical instrument tuner for the Pocket PC 2002 and Pocket PC.
From the installation kit, select the .exe file for your color Pocket PC from the following table:
| Pocket PC Device | Executable to use |
| ARM-based Pocket PC 2002 (iPAQ 36xx*, 37xx, 38xx, 39xx, 54xx, Jornada 56x, Audiovox Maestro 1032, NEC MobilePro P300, Casio E200+ , Toshiba e570, e740 etc.) |
Tunerrr\ARMRel\Tunerrr.exe |
| SH3/4-based Pocket PC (Jornada 525, 548 etc.) | Tunerrr\SH3Rel\Tunerrr.exe |
| MIPS-based Pocket PC (e.g. Casio EM500, E125, etc.) | Tunerrr\MIPSRel\Tunerrr.exe |
* For iPAQ 36xx Pocket PC 2002 upgrade (available from Compaq) must have been applied.
You have unzipped the Tunerrr Zip file which you downloaded (otherwise you wouldn't be reading these instructions!). Make sure your Pocket PC is in its cradle, and ActiveSync is running on the desktop machine. Select the correct Tunerrr.exe from the table above - this file should be copied to the \Windows\Start Menu directory on your Pocket PC. Do not try to execute the .exe on your desktop PC: it wont work! Use Windows Explorer to copy and paste the file to the directory on your Pocket PC:
Once you have copied the Tunerrr.exe file to the Pocket PC, you can remove the Pocket PC from its cradle, and run the application from the "Start" menu.
Tunerrr is capable of detecting musical notes in the frequency range from 10Hz to 4000Hz, with a resolution of less than 1Hz. When Tunerrr detects a note, it displays the note's letter, highlights the corresponding key on a depiction of a 1 octave piano keyboard, and gives an indication of how close the detected frequency is to the standard tuning for the note.
When you start Tunerrr from the Pocket PC's "Start" menu, a display similar to the following will appear.
In the middle of the screen you will see a vertical set of green and red bars. A smaller yellow bar shows the current sensitivity setting. As Tunerrr picks up sounds, the level of the green bar will move up and down. If the level exceeds the yellow bar position, the bar turns to red. Levels above the yellow bar are used to make a measurement. You can adjust the sensitivity level (the level of the yellow bar) simply by tapping with the stylus at the position you want it to be. Until the sound level exceeds the yellow bar, the Tunerr display will look like this:
In the top left corner, the name of the detected musical note on the equal-tempered scale is shown (in this case, A#). In the upper right edge of the screen is a set of blue colored bars. These indicate the sound level in each of 9 channels centered on the target frequency for the note (shown as an orange bar), and provide a visual indication of how close the detected musical note is to the desired tuning. Each of the 9 channels is 1Hz wide. In the example above, you can see that the detected frequency (the biggest blue bar) is a little too high. The target bar (colored orange, and labelled "A#") is what we are tuning to.
Once the instrument is in tune, then the biggest bar will be the orange bar.
The small 1 octave piano keyboard shows the detected musical note's position, by coloring the appropriate key in orange.
Underneath the piano keyboard is a 'scope display showing the audio signal picked up by the Pocket PC's microphone.
Note also that the detected frequency is show in the top left corner of the Tunerrr display (in the example above it is 233.4Hz).
By placing the stylus on Tunerrr's piano keyboard, a pure sine wave of the corresponding note frequency will be played from the Pocket PC speaker, or via the headphone jack, if you have headphones attached.
05/21/2003 J.J.Bunn Bofinit Corporation