How MFA Works
Speech limitations over the phone
We were born with the ability to hear up to 20,000Hz. When talking on cell phones, that upper range is reduced to 3,400Hz. There are still important speech information above 3,400Hz that’s why you often have to give context for high frequency sounds like “S for Sam” or “F for Frank” because without the context, the individual high frequency sounds can be imperceptible.
The MFA Solution
MFA precisely identifies all high frequency consonants within 1.5ms (the human ear needs 30ms to detect lag) and brings the audio information above 3,400Hz to within the narrowband spectrum so that previously unclear or inaudible words can now be heard with minimal distortion. Listen to the original sound “Gas” and the MFA processed sound “Gas” and notice that within the full spectrum context, there is almost no distortion.