Testing: going beyond standard audiology measures
Mimi’s testing technology measures different aspects of hearing ability. As well as a standard audiological Pure Tone Threshold (PTT) test, Mimi has developed a groundbreaking Masked Threshold (MT) suprathreshold test based on Mimi’s research into audio masking.
Pure Tone Threshold (PTT) test
Mimi’s Pure Tone Threshold (PTT) test has been developed for calibrated devices and headphones and tests the lowest intensity sound that a person can detect. It is the industry standard for assessing hearing ability, with the output being an audiogram.
Masked Threshold (MT) Test
Mimi’s Masked Threshold (MT) test is an advanced device agnostic hearing test developed for uncalibrated devices. It measures the quietest level of a pure tone that a user can perceive in the presence of a masker (i.e. noise) at a specific frequency. This correlates with the ability to make sense of complex soundscapes. This ability is called tuning, with broad tuning being an indicator of hearing impairment.
Fitting: where hearing science meets audio engineering
Mimi’s fitting technology is the meeting point of hearing science and audio engineering, and what allows Mimi to personalize a user’s audio. Inputs regarding the user’s hearing, determined through testing or demographics, are parameterized to ensure that the processing applied to their audio is tailored to their hearing ability. There are two types of fitting available for Mimi.
Hearing Test based Fitting
Utilizes test results to gain insights about each user
Creates unique and comprehensive hearing profile for each user
Maps user’s unique hearing profile to more than 100 parameters in Mimi’s processing algorithm
Sets personalization based on demographic information
Based on database of 1.000.000+ hearing tests
Delivers significant optimization within seconds
Processing: a bio-algorithm that mimics a healthy human ear
The ear is a complex organ, which pre-processes incoming sound in a highly non-linear way to create the optimum representation of the sound for the brain to efficiently extract the most relevant information. It is finely tuned to achieve this task in all kinds of sonic environments.
As hearing deteriorates, the signal conditioning capabilities of the ear begin to break down and listeners with hearing impairment find it takes more mental effort to make sense of sounds within more complex acoustic scenes, or they miss information entirely.
Mimi’s proprietary processing technology is a simulation of the healthy human ear. As such, it conducts various non-linear transforms on a signal. These do not resemble any of the conventional audio signal processing techniques, used for example in a recording studio. Through the artificial application of these techniques, Mimi’s processing creates a representation of the signal that, once processed by the listener’s ear, contains more relevant information for the brain to make sense of.