Notes:

Start your plane from a distance away flying low and level at full speed. The plane should be within 50 ft. away from recorder as it passes for best results. Remember, any other sounds besides the plane itself will interfere with results, things like wind, voices, music ect...

To make a sound recording to use with WaveosScope you will need to use your windows sound recorder to record a portion of sound from your video.

XP Sound Recorder: To make a direct recording from your video to windows sound recorder...

1. Double click the small speaker down by your time in task bar below, select options/properties.
2. In the properties window select Recording and make sure there is a check mark in the Stereo Mix. Hit ok, the window behind should have a check mark below the Stereo Mix slider bar. Close recording control window.

Open your video and sound recorder together. Once you start playing the video open the sound recorder and wait till you see your best speed run. Hit the Record button on sound recorder to record the sound of it entering and passing. You should have between 4-10 seconds of sound. Hit the Stop button to stop recorder when finished. Hit Play to test the sound to make sure its clear and loud.

Vista Sound Recorder: this sound recorder only makes .wma (windows media audio) files. You will need to download a converter to convert the .wma file into .wav file to use with Wavoscope or you can just download "JetAudio" its free and can be used to record/convert most any audio & video files. Now we need to "Enable Stereo Mix" right click the small speaker icon down by the clock in task bar then select Recording Devices, if you dont see Stereo Mix in the list you will need to do this ( right click any blank white area below the list you see) select "Show all Disabled devices" then highlight the Stereo Mixer now in the list and select the "Set Default button" you should see a check mark appear over Stereo Mix.

Tip: I use about 2-3 seconds of plane entering and about 2-3 seconds passing. To save the sound file go to File/Save As, give it a name and save to a folder. For those who wish to use JetAudio to convert the .WMA file to a .WAV file do this: right click on the .WMA file you made and select jetaudio, then select covert with jetaudio. When jetaudio pops up select the start button. This will convert the file and place it in the same folder as the .WMA. It will ask do you want to add it to album, just select no and close the program.

WaveosScope: Open the Wave program and it will ask for a wav file, select the .WAV file you made.

Once the program opens you should see wavy lines on the screen. This will be the sound waves from your sound file. Use your left mouse button to mark the left side of a wave line, then use your right mouse button to mark the right side of wave line. Note: experiment with the sliders on the side to make the wav lines clearer. After selecting the beginning and ends points you will see the km/hour at top. As an example 178 km/hour. If you want the mph you will need a km to mph converter which are free online. I use this one.

The 2KOOL4U.com wav and image files are both included for testing your skills. Plane is a Stryker F-27 with 16-25-3 6cell, Waveosscope 126mph