Room Acoustics
Describe the term signal-to-noise ratio
The intensity of a desired signal over the intensity of the background noise
Within how many feet should a speaker be from the listener?
Within 6 feet
What is a block diagram?
Visual representation of an electrical system to show relationships. Catch, Carry, Couple
What are nonverbal cues and how do they contribute to communication?
Facial expressions, gestures, suprasegmentals, body posture.
Describe a participation limitation.
Something that someone does not do due to the effects of their hearing loss.
How can we measure SNR in a room?
Measure the desired signal and then measure the level of background noise of the space
Describe the components of CLEAR speech
Cessations
Louder
Enunciate
Accentuation
Rate
How does a remote microphone work?
Increases SNR by streaming audio directly to devices.
Why are consonants important for speech perception?
Consonants contribute to the meaning of speech.
What is the auditory feedback loop?
Allows someone to regulate their own voice by comparing how loud their voice is compared to background noise.
What is the expected reverberation time for a classroom?
Less than or equal to .3 second
Name 3 hindrances to the auditory + visual condition
Lighting
Facial hair
Distance/Location
Covering mouth
How can someone go about getting a CaptionCall telephone?
Most states have a free phone program through ADA.
Why are vowels important for speech perception?
Contribute to the power of speech. Contain multiple formants that add to redundancy of speech.
What is the difference between being deaf and being Deaf?
Being deaf describes someone who has hearing loss. Being Deaf describes someone who has a shared culture, values, history, and identity.
What is the Inverse Square Law?
As the distance sound travels doubles, the intensity decreases by 1/4.
Provide an example of a facilitative communication strategy.
Influence the talker, message, environment, reception
How does a telecoil work?
Coil in hearing aid picks up electromagnetic waves emitted from a looped system.
Explain why speech is considered to be redundant.
Multiple cues, formants, contexts, statistical learning, non-verbal cues
What is section 504 of the Rehabilitation Act of 1973?
Prevents organizations that receive federal funding from discriminating based on disability.
What group of frequencies tend to fade quickest as sound travels across a room?
The high frequencies
Define bluffing and provide an example.
Pretending to understand
What is the TechOWL and how can someone benefit from it?
Helps people with hearing loss borrow and acquire assistive technology. Features a lending library.
Provide an example of an activity exercising speech discrimination.
Auditory training, QuickSIN
Who qualifies for OVR services?
Someone with a disability who is currently working or seeking employment.