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Do any amps have noise cancelling features?

post #1 of 5
Thread Starter 

Do any amps have noise cancelling features and if not, why?  I noticed that the Audio Technica noise cancelling headphones basically have a noise cancelling amp on them, but they are so incredibly uncomfortable.  Does anyone make an amp like that?

post #2 of 5

No, I don't think so.

 

Its more of an earphone feature. The earphones have mics in them and an opposite (out of phase) sound wave is created to cancel out the background noise. For amps to have this feature with these types of earphones with additional electrical wiring/circuits you would have to have an internationaly recognised standard format for the headphone jacks for it to be worthwhile for the manufacturers.

The only DAPs I know of with this type of background noise cancelling feature incorporated into the units were Sony units, the earphone jacks had an extra 2 contacts and the 'anti-background noise' was created by the player itself.

post #3 of 5
Quote:
Originally Posted by NoThru22 View Post

Do any amps have noise cancelling features and if not, why?  I noticed that the Audio Technica noise cancelling headphones basically have a noise cancelling amp on them, but they are so incredibly uncomfortable.  Does anyone make an amp like that?

 

The microphones must be positioned near your ears, so it only makes sense to integrate noise cancelling into headphones.

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post #4 of 5
Thread Starter 

I was referring to the Audio-Technica ATH-ANC1, which seems to have the entire noise cancelling unit in the line.  It also seems to be an amp because it sounds much louder and clearer when turned on.  Here's a pic: http://ecx.images-amazon.com/images/I/61mClqzJyuL._AA1500_.jpg

 

They are incredibly uncomfortable or they would have been my final pick.

post #5 of 5

The noise cancelling unit on the ANC1 does have the electronics needed for making the "anti-noise" signal, but it still needs microphones that are part of the headset.  In other words, the wires from the dongle to the earpieces are carrying signals both ways: sending audio to the speakers in the earcups, and collecting audio from the microphones on the earpieces.    

 

There are other noise cancelling headphones with this design strategy.  Sony makes a line of headphones with a similar form factor, except with in-ear monitors as the drivers.  These have microphones outside of the IEM housings to pick up the microphone signals for cancellation.  I have the MDR-NC100D which are OK but a bit treble-y.  A quick check on Amazon shows lots of manufacturers with a similar design strategy -- Sennheiser, Pioneer, and other less noteworthy brands.  

 

The important thing to recognize is that this is still a complete system with headphones and active circuitry, and there is no simple way to attach the dongle to another set of headphones and get a noise cancelling headphone.  

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