What if we want to add some space between the noise, so we can get a beat? How to Separate the Noise – AKA Make a Beat You will notice that the higher the number, the higher the pitch that is created. *Tone needs 2 arguments, but can take threeĢ) Frequency - this is in hertz (cycles per second) which determines the pitch of the noise madeĪs an experiment, try changing the second argument in tone() to 100, 1000, 10000, 650000 and listen to the effect it has on the audio signal. Specify digital pin on the Arduino that the positive lead of piezo buzzer is attached. Here is a simple sketch demonstrating the tone() function: //A sketch to demonstrate the tone() function The frequency is an unsigned integer and can take a value up to 65,535 – but if you are trying to make tones for the human ear, then values between 2,000 and 5,000 are where our ears are most tuned.
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