Noise-Cancelling Headphones

How to Change Your Headphones into Noise-Cancelling Headphones

Noise-cancelling headphones is a tool to block out background noise used in the headphones. You can find many commercial models are available in the market but essentially all perform the same function.

You want to know what is behind a noise-cancelling headphones circuit. This is done by reproducing an ambient sound with microphone out of phase, so that the active noise background can be "null" or canceled. You also can add this feature in headphones because this circuit is simple enough to make that all yours a best noise cancelling headphones.

Active noise-cancelling headphones let you mix in an auxiliary line-level from a MP3 or CD player along with noise-features. In this way, the background noise can be minimized while you listen to music quietly.

With the aim to strengthen background noise, this circuit also has a phase switch so that your microphone signals remain in phase. In addition, there are several other interesting functions match added to the design of this noise-cancelling headphones.

Noise-cancelling headphones is composed of three op-amp circuit using the NE5532 dual op-amp. Each op-amp is set in different configurations, namely a non-inverting pre-amp, a unity-gain phase-inverter, and an inverting  headphone amplifier.

Noise-cancelling Headphones are two circuits side by side so that it can be used in two-channel stereo audio. Noise-Cancelling Headphones Project.P2S4YMSRWFT2

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