What are the main two tests given in speech audiometry
Speech Reception Threshold
Word Recognition
What is Speech Reception Threshold
Softest level at which a patient can understand simple words.
With familiarization
Find threshold through bracketing method
What is the children’s equivalent test for SRT
Speech Detection Threshold (pointing a pictures)
What type of words are used during SRT and SDT testing
Spondee: word with two syllables, both syllables pronounced with equal stress and effort
What amount should speech reception threshold and PTA align by
+/- 10 dB
What happens if SRT and PTA are not in alignment
may be a red flag for nonorganic hearing loss
What is word recognition
percentage of words presented at a comfortable listening level that can be CORRECTLY REPEATED
No familiarization
and recorded speech is best for a giver
What type of words is used during WR
one syllable words that are phonetically balanced.
What type of sound is used for masking during speech audiometry WR and SRT
broadband noise (white noise)
Which hearing loss would have the poorer WR scores? conductive or sensorineural hearing loss?
sensorineural hearing loss
Masking is used for which two types of audiometry
pure tone and speech
What is cross hearing
when the non test ear can hear the stimuli that is meant to be presented to the test ear
Giv an example when you should use masking for BC
no matter where the transducer is placed, both ears are stimulated due to vibrations
Give an example when you should use masking for AC
one ear may have poorer hearing, so when testing the poorer ear, the tone is so loud it leaks out of one headphone/insert and is heard by the better ear
What is interaural attenuation
as sound travels from one side of the head to the other, a certain amount of energy is lost in transmission.
IA for AC is losing 40-50 dB
IA for BC is not losing any dB
When do you use masking for air conduction
when there is asymmetrical hearing loss.
mask at any frequency where there is a 40-55 dB difference between ears
What type of noise is used for masking with pure tone audiometry and air conduction
narrowband noise
What is narrowband noise
complex aperiodic noise that is filtered to include only noise that is near the same frequencies as the pure tone being masked .
what is more effective narrowband or white noise
narrowband
When do you use masking for BC
if there is an airborne gap of 15 or more dB
When is masking used for SRT testing
when hearing loss is asymmetrical
When is masking used for WR
often, as much as possible
what are some speech testing considerations
cognitive abilities
language barriers
speech disorders
regional accents
Is masking presented via air or bone conduction
air
