Speech Reception Threshold (SRT)
Questions and Answers
Speech Recognition Threshold - Answers-the intensity at which an individual can
identify simple speech materials approximately 50% of the time
SRT measurement - Answers-dB HL
SRT purpose - Answers-Check to pure tone findings
Serves as basis for determining supra threshold speech testing
Spondees - Answers-two syllable word with equal emphasis on both syllables
ex: hotdog, cupcake
Step 1 of SRT procedure - Answers-Familiarize the words
-Reading words at approximately 30-40 dB SL
---Use those words understood
Step 2 of SRT procedure - Answers-Determine starting level for testing
Step 3 of SRT procedure - Answers-Determine threshold
"Old" way SRT threshold search - Answers--Familiarize 30-40 dB above PTA
up 10 until easily heard
-Down 10, up 5 until threshold achieved
---2/3 ascending trials
"New" way #1 SRT formula - Answers-SRT = starting level - total # words correct + 1
correction factor
"New" way #2 SRT formula - Answers-SRT = Starting level - # words correct + 2
correction Factor
Differences in new #1 vs new #2 - Answers-NW1: 2 words per dB level, Drop 2 dB
steps, Stopping Criteria: 5 out of last 6 words were incorrect
NW2: 5 words per level, Drop 5 dB steps, Stopping Criteria: 5 words at same level all
incorrect
Similarity in new #1 and new #2 - Answers-Start level determined the same way
-Start 30-40 dB SL (above PTA)
-Increase 20 dB, then increase 10 dB steps until heard
-Decrease in 10 dB steps until word missed
