Doctor Pitch - The Doctor is In... Tune

                 

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Input Formats

Doctor Pitch will accept pitches and lengths in a variety of formats. Pitches and lengths can be entered as one of the following:

Hertz: A simple number representing the cycles per second. This can optionally be followed by a plus or minus cents offset. ("262+50")

Scalatron: An octave number, followed by a list of the selected red switches.("4 1 2 5 10")

Ratio: An octave number, followed by a fraction with a division slash, relative to the Ratio Reference. The fraction can optionally be followed by a plus or minus cents offset. ("0 3/2-10")

Equal Temperament: A letter note, followed by an optional sharp "b" or flat "#", followed by an octave number. This can optionally be followed by a plus or minus cents offset. The reference is Middle C at 261.63 Hz. ("Eb-1+14")

Decimal length/thickness: A number with a decimal portion, in inches. ("1.625")

Fractional length/thickness: A number, a space or hyphen, and then a fractional portion given with a division slash, in inches. ("1-5/8")

Microphone Help

You can read the pitch of an instrument and feed it into any pitch field within Doctor Pitch. To use the microphone, you must be sure the following conditions are met:

Device Source must be set: Your operating system's default sound recording device will be used for input. Some systems have many input sources, even though you might only be aware of one or two. On later Windows systems, choose the "Default Device" and not the "Default Communications Device".

Allow Flash to access the microphone: Initially, your browser's Flash plugin won't be able to hear anything from your microphone, because Flash wants to protect you from the potential for eavesdropping. When you first select to read a frequency through the microphone, Flash will ask you if it's okay via a dialog box in the upper right corner of the page. You should click "Remember", "Allow", and then "Close".

If you're having trouble getting the microphone to work, run the Spectrum Analyzer. This will give you an idea if the microphone is connected, and what it may be hearing. You'll quickly be able to see if there's not enough signal, or too much noise. During silence, you can see the maximum dB of any noise, and use that in the Master Options' "Noise Floor" setting. You can also see what low frequency noise may be present, and use it to adjust the Master Options' "Low Cut Filter" setting.