What can you map on an audiogram of familiar sounds? - Answers You can map hearing loss
configurations in relation to sounds you here often
What was found when researchers used a 1000 HZ high-pass and low-pass filter to evaluate speech
energy and speech intelligibility? - Answers - 95% of speech (acoustic) energy occurs below 1000 HZ
- 25% of speech was intelligible when it is sloping (most common on audiograms)
- 90% of speech was intelligible when it is rising up to 1000 Hz
Common errors in sloping high-frequency hearing loss - Answers There are more errors with consonants
than vowels because people with hearing loss can work around formant frequencies and voiceless
consonants don't have voice bars
What does conductive hearing loss sound like? - Answers It sounds muffled, like plugging your ears;
becomes undistorted once the stimulus is loud enough
What does sensorineural hearing loss sound like? - Answers It sounds like a speaker is mumbling
because the cochlea cannot differentiate frequencies, there is distortion even when stimulus is loud
enough (raising level makes it worse)
What does mixed hearing loss sound like? - Answers The degree of distortion is related to the amount of
cochlear hearing loss, the distortion stays the same even with conductive component
Why do we use speech audiometry? - Answers - attempt to represent real life
- rehabilitation assessment
cross check for pure-tone audiometry
- differentiate hearing loss
- beneficial for testing children
Monitored Live Voice (MLV) - Answers Presentation method of speech audiometry with earphones that
is most often used in the past, is a faster procedure, but has large variability in the level of the speaker's
voice
Digitized/Recorded Material - Answers A speech audiometry presentation method that is standardized
and automatic that has a consistent level and longer procedure
Speech Audiometry Response Options - Answers verbal (faster) and written (time consuming, can only
be used if the test can be scored at the end)
Speech Recognition Testing Threshold Measures - Answers Speech Detection Threshold (SDT) and
Speech Recognition Threshold (SRT)
, Speech Recognition Testing - Answers assesses how well someone can recognize words through
threshold methods (can be adjusted, measured in dB HL) and supra-threshold measures (fixed
presentation methods and dB level, measured in percent correct)
Speech Recognition Testing Supra-Threshold Measures - Answers Word recognition scores, nonsense
syllables, sentence recognition scores
Spondaic Words (Spondees) - Answers speech threshold test stimuli; two-syllable words with equal
stress on each syllable ie. hotdog, cowboy, baseball
Speech Detection Threshold (SDT) - Answers The lowest level at which the individual can detect the
presence of a speech signal 50% of the time and can detect speech at a lower level than
recognizing/repeating speech, usually within 10 dB of the best pure-tone threshold between 250 and
4000 Hz and should be 10 dB less than SRT; used only with children and adults with developmental
disabilities
Speech Recognition Threshold (SRT) - Answers Pure-tone average --> SRT; the lowest level at which the
individual can recognize and repeat back the spondees 50% of the time (familiarize the individual with
some of the words and give instructions beforehand), should be +/- 5 dB of the PTA agreeing with the
PTA
Relationship Between PTA and SRT - Answers If SRT is better than PTA by 10 dB or more there is
malingering and start over with audiogram, if SRT is poorer than the PTA by 10 dB or more it may be
sensorineural hearing loss
Suprathreshold Testing - Answers Communication assessment that assesses the listener's speech
understanding can evaluate a communication disability, plan or manage rehabilitation, and provide
outcome measures for intervention
CID-W22 - Answers Word recognition test stimuli; 4 lists w/ 50 common English (CVC, CV, or VC) words
each that are phonetically balanced, the score is the percent correct
NU-#6 - Answers Word recognition test stimuli; 4 lists of 50 CVC words each that are phonemically
balanced, score is percent correct
Word Recognition (Speech Recognition) Testing - Answers Starting level at 40 dB SL referenced to the
patient's PTA or SRT (if SRT=35 dB HL then you start at 75 dB HL) to present at a level that is comfortable
but overcomes hearing loss and test several levels
Speech in Noise Testing - Answers CID-W22 or NU#6 with background noise in either the same or
opposite ear; attempts to mimic daily listening situations
Computer-Assisted Speech Perception Assessment (CASPA) Test - Answers computer presentation of
consonant-
vowel-consonant (CVC) stimuli that allows