The flashcards below were created by user
gwoods
on FreezingBlue Flashcards.
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The addition of ____ dB to a SDT score estimates ___.
8-10 dB, SRT
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SRT verifies what?
SRT verifies your PTA (usually within 5 db)
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What is Speech Discrimination test?
It uses single syllable word lists, chosen so they approximate a sample of speech sounds occurring in an ordinary conversation.
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What is Timbre?
Tonal quality of a complex sound.
We recognize different vowel sounds because of variations in timbre
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What is fundamental Frequency?
The frequency that predominates.
In a complex tone, the lowest frequency, being the loudest, predominates.
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Overtones
The weaker higher frequency
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Harmonics
Overtones in exact multiples of the fundamental frequency.
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Phoneme
Is a speech sound
It composed of several frequencies of varying intensities.
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Formants
Is a range of frequencies in the spectrum of a sound where certain harmonics are relatively loud.
They give complex sounds their distinctive characteristics
Ex: tell a violin from a flute, one vowel from another
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What is the most important energy for recognizing speech sounds are the ____ and ____ formants.
second and third
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Third Formant frequency range
1500 to 4500Hz
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Second Formant frequency range
700 Hz to 3500Hz
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First Formant frequency range
200 Hz to 1200Hz
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Most of the energy in ____frequencies of background noise masks out the _____frequencies components.
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The ____frequencies in speech are always more important for providing intelligibility than ____ frequencies
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Backward masking
Results when a louder sound occurs immediately after a softer sound, causing the softer sound to be inaudible, even though it occurred first.
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Forward masking
Occurs when one sound follows another closely in time and the first sound reduces the sensitivity of recently stimulated cells.
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