JavaScript Source Code 2002: Equivalents: Hertz Converter

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Equivalents

Hertz Converter

Convert between frequency and beats per minute (i.e. 8 octaves lower). Enter a number in either field, then click outside the text box.

JavaScript Source Code 2002: Equivalents: Hertz Converter
Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s). The script is yours!!!

  <BODY> <! > <! >   <center> <form> <table border=0> <tr> <td> Hertz: </td> <td> <input type=text name=F value="440" onChange="C.value = 0.234375 * this.value"> </td> </tr> <tr> <td> Beats per minute: </td> <td> <input type=text name=C value="103.13" onChange="F.value = 4.2666667 * this.value"> </td> </tr> </table> </form> </center>