Puretone Audiometry is a fundamental audiometry test used to determine an individual's hearing threshold levels across a range of frequencies. An audiometer delivers pure tone sounds at various frequencies and volumes to each ear separately. The patient indicates when they hear a sound, allowing audiologists to plot an audiogram that shows the degree and type of hearing loss.

Free Field Audiometry is conducted in a sound-treated room using speakers rather than headphones. This test assesses hearing in a more natural listening environment, making it particularly useful for young children or individuals who are uncomfortable with headphones. Sounds are presented from different directions to evaluate how well the patient can hear in an open field.

Speech Audiometry involves tests that measure the ability to detect and understand speech. The Speech Reception Threshold (SRT) determines the softest level of speech that a person can recognize half the time, while the Word Recognition Score (WRS) assesses the ability to understand words at a comfortable loudness level. These tests help in diagnosing the impact of hearing loss on speech perception.

Impedence Audiometry, also known as tympanometry, evaluates the condition of the middle ear and the mobility of the eardrum by changing air pressure in the ear canal. This test can detect issues such as fluid in the middle ear, eustachian tube dysfunction, and otitis media. It provides valuable information about the mechanical function of the middle ear.

Otoacoustic Emission (OAE) tests measure sounds produced by the inner ear (cochlea) in response to auditory stimuli. The presence of OAEs indicates that the outer hair cells of the cochlea are functioning properly. This test is commonly used in newborn hearing screenings and can detect cochlear issues even before they affect hearing thresholds.

Brainstem Evoked Response Audiometry (BERA) records electrical activity in the auditory nerve and brainstem in response to sound stimuli. Electrodes placed on the scalp measure the brain's response to these sounds. BERA is particularly useful for diagnosing hearing loss in infants and young children, as well as detecting neurological disorders affecting the auditory pathways.

Speech Assessment involves a comprehensive evaluation of an individual's ability to produce and understand speech sounds. This includes tests for speech clarity, fluency, voice quality, and language comprehension. Speech assessments are crucial for diagnosing speech disorders and planning appropriate therapeutic interventions.

Hearing Aid Fitting and Trial involves selecting, fitting, and adjusting hearing aids to meet the specific needs of individuals with hearing loss. Audiologists ensure the devices are calibrated for optimal performance. Patients undergo a trial period to test the effectiveness and comfort of the hearing aids, ensuring the best possible outcome for improved hearing and communication.