earHD is designed to focus on sounds coming from in front of the listener.
This allows the user to focus on sound they look at.
The table below shows how sound coming from the front (0 degrees) is unaffected and sound coming from varying angles is reduced.
Speech intelligibility measures how well earHD can receive a human voice emanating from the front.
The natural human ear is rated in the ‘fair’ category at an average of 0.49.
Using earHD improves this with an average of 0.62 for female voices and 0.64 for male voices