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An exam or test for a course on speech and voice science (comd 5070). It covers a wide range of topics related to speech production, acoustic analysis, and signal processing. The exam includes multiple-choice and short-answer questions that assess the student's understanding of concepts such as intensity, transducers, filters, vocal fold movement, sampling rate, analog-to-digital conversion, and various types of acoustic analysis techniques like spectrograms and lpc. Complete solutions to the exam questions, making it a valuable resource for students studying speech and voice science. The comprehensive coverage of topics and the detailed explanations make this document potentially useful as study notes, lecture notes, or a summary for students preparing for exams or assignments in this field.
Typology: Exams
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_______ is a measure of amplitude. - ANSWER-Intensity A _______ converts electrical energy into acoustic energy. - ANSWER-transducer A change in movement of the articulators causes a change in the sound's: - ANSWER- filter A disordered voice indicates: - ANSWER-disordered vocal fold movement A Fixed Band Pass filter looks at: - ANSWER-a series of band pass filters, one at a time A higher sampling rate gives better: - ANSWER-fidelity Acoustic analysis doesn't reflect the movements that caused the sound in a ____________________ way. - ANSWER-linear Acoustic power is measured in _______. - ANSWER-watts and describes how energy is radiated Acoustic power represents: - ANSWER-the amount of energy transfer in a given amount of time Be sure not to clip the signal by: - ANSWER-bringing it in at too high a level Changes in vocal fold movement cause a change in the sound's: - ANSWER-source Distorted or imprecise articulation indicates: - ANSWER-abnormal movement of the articulators Driving the signal too hard can cause ______________ which causes _____________.
How can make your recording environment more quiet? - ANSWER-Reduce reverberation & echoing from hard surfaces in the room If the original sample contains many rapid changes, your sample rate must be ________ in order to capture those changes. - ANSWER-higher If the signal is too tiny, it won't be audible over: - ANSWER-background noise If the strength of the signal coming in is bigger than your recording device can accommodate, the signal will be: - ANSWER-badly distorted If you want to understand the impact of having hearing loss in a certain range, you could filter out _______________ _______________ in a sample of normal speech. - ANSWER-certain frequencies In a ____________________ filter , you would be deleting a number of frequencies that would be important for speech perception. - ANSWER-wide band Microphones and speakers are ____________ devices. - ANSWER-analog Name 2 benfits of acoustic analysis: - ANSWER-1. it's noninvasive
Which type of spectrogram shows horizontal lines that represent HARMONICS of the voice and has good FREQUENCY resolution? - ANSWER-narrow band Which type of spectrogram shows individual vertical glottal pulses (vertical striations) and has good TIME resolution? - ANSWER-wide band Women's voices are about ____________________ in their fundamental frequency than men's are. - ANSWER-an octave higher You can always downsample later, but you can never : - ANSWER-upsample and replace info that wasn't in your recording. You will sample at twice the rate of the ____________ _______________ in the signal.