DSP

If the headphone receives digital input, one can apply all kind of DSP before the DA conversion.

 

A very popular one is ANC (Active Noise Cancellation).
The noise of the environment is captured by a microphone.
Use a complex algorithm, the inverse of this noise is added to the music.
When done right the outside noise and the inverted noise in the music should cancel out each other. Practice might be a bit different.

 

Sennheiser Momentum Wireless headphone with noise cancellation


The Parrot Zik comes with an app (Android/Apple) for the smartphone allowing you to apply all kind of DSP.

Parrot Concert Hall DSP

EQ

Nuraphone €399.00

 

A rare combination of over the ear plus inear

It claims to compensate by measuring the response

 

 

"The nuraphone plays a range of tones into the ear, and then measures a very faint sound that your ear generates in response to these tones called the Otoacoustic Emission (OAE). This tiny signal originates in the cochlea and vibrates the ear drum, turning it into a speaker and playing sound back out of your ear. Yes our ears make sound! This sound is about 10,000 times smaller than the sound that went in.

Encoded in the returning sound wave is information about how well you heard the sound that went in. The nuraphone uses an extremely sensitive microphone to detect this returning sound wave, and a self learning engine built into the nuraphone to create your profile. No buttons or knobs. It all happens automatically and in about 60 seconds. It is a little bit magic.

Once the nuraphone has created your hearing profile it sonically moulds your music so that it matches your hearing system and delivers all the detail of the music you love. Once personalised you can listen to your favorite music in stunning detail from your favorite player."

Source: Nuraphone

Aumeo $199.00

A portable Bluetooth receiver

 

 

Measure your ears with Aumeo Headphone Personalizer's companion app, AumeoHub (iOS & Android). 8 frequency bands will be measured for each ear.

This is a Graphic equalizer.

 

Audeara A-01 AU$499.00

Using an app, you to calibrate the headphones to your specific hearing profile.

ANC (Active Noise Cancellation)

Bluetooth 4.2

Hands free calling