ASLP 3030 final Exam 2025 Questions
and Answers
What is a complex waveform? - --CORRECT ANSWER--a waveform that
contains multiple frequencies ex: our voices
How do speakers increase their perceived loudness? - --CORRECT ANSWER--by
increasing subglottal pressure
having larger articulators movements with higher oral pressure
Having larger vocal folds
*excursions and more forceful vocal fold collisions
What is the main thing that distinguishes a digital signal from an analog signal? - --
CORRECT ANSWER--Digital signals are discrete snapshots over time
Analog are infinite graph : continues in time and continues amplitude, no gaps
what is sampling rate - --CORRECT ANSWER--the number of samples ,
snapshots, taken per second represents an amplitude
What is quantization? - --CORRECT ANSWER--the assignment of a digital value
to describe the amplitude of a waveform
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, refers to this process of *converting* a voltage, which is analog, into a number,
which is if course, digital. And the quantization accuracy has to do with the
number of bits of resolution that you have. for the sine wave, any voltage value is
possible within its range. The voltage goes up and down on the y-axis.More steps
available, each one can cover a slightly smaller voltage range.
What is a spectrum and how is it different from a spectrogram? - --CORRECT
ANSWER--spectrum contains all frequencies presented in a waveform (amplitude
(vertical axis) vs frequency (horizontal axis)
Spectrogram: shows all 3 The X axis in this case goes from left to right showing*
time*. The Y axis goes from low frequency at the bottom to high *frequency* at
the top. And whether the trace is lighter or darker represents the intensity of the
signal or the amount of *amplitude* that is present with darker representing
stronger.
What is Fourier analysis/Fourier transform? - --CORRECT ANSWER--analysis
:all periodic sounds are made of a combination of sine waves varying in amplitude
phases and frequencies.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
and Answers
What is a complex waveform? - --CORRECT ANSWER--a waveform that
contains multiple frequencies ex: our voices
How do speakers increase their perceived loudness? - --CORRECT ANSWER--by
increasing subglottal pressure
having larger articulators movements with higher oral pressure
Having larger vocal folds
*excursions and more forceful vocal fold collisions
What is the main thing that distinguishes a digital signal from an analog signal? - --
CORRECT ANSWER--Digital signals are discrete snapshots over time
Analog are infinite graph : continues in time and continues amplitude, no gaps
what is sampling rate - --CORRECT ANSWER--the number of samples ,
snapshots, taken per second represents an amplitude
What is quantization? - --CORRECT ANSWER--the assignment of a digital value
to describe the amplitude of a waveform
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, refers to this process of *converting* a voltage, which is analog, into a number,
which is if course, digital. And the quantization accuracy has to do with the
number of bits of resolution that you have. for the sine wave, any voltage value is
possible within its range. The voltage goes up and down on the y-axis.More steps
available, each one can cover a slightly smaller voltage range.
What is a spectrum and how is it different from a spectrogram? - --CORRECT
ANSWER--spectrum contains all frequencies presented in a waveform (amplitude
(vertical axis) vs frequency (horizontal axis)
Spectrogram: shows all 3 The X axis in this case goes from left to right showing*
time*. The Y axis goes from low frequency at the bottom to high *frequency* at
the top. And whether the trace is lighter or darker represents the intensity of the
signal or the amount of *amplitude* that is present with darker representing
stronger.
What is Fourier analysis/Fourier transform? - --CORRECT ANSWER--analysis
:all periodic sounds are made of a combination of sine waves varying in amplitude
phases and frequencies.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
