Harmonic frequency - Study guides, Class notes & Summaries
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COMD 5070 Final Exam (Latest 2024 / 2025 Update) Acoustics of Speech and Hearing | Questions and Verified Answers | 100% Correct | Grade A - Utah
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COMD 5070 Final Exam (Latest 2024 / 2025 Update) Acoustics of Speech and Hearing | Questions and Verified Answers | 100% Correct | Grade A - Utah Q: what is the Nyquist frequency? half the sample rate Q: if you want to go up one octave, you ______ the frequency. Answer: double Q: if you want to go down one octave, you ______ the frequency. Answer: halve Q: what does a high pass filter do? Answer: allows high frequencies through Q: what does a low pass filter do? Answer: allows low frequencies th...
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AQA AS PHYSICS 7407/2 Paper 2 Version: 1.0 Final *JUN237407201* IB/M/Jun23/E7 7407/2QUESTION PAPER & MARKING SCHEME/ [MERGED] Marl( scheme June 2023
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AQA 
AS 
PHYSICS 
7407/2 
Paper 2 
Version: 1.0 Final 
*JUN* 
IB/M/Jun23/E7 7407/2 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5–34 
TOTAL 
Wednesday 24 May 2023 Afternoon 
Materials 
For this paper you must have: 
• a pencil and a ruler 
• a scientific calculator 
• a Data and Formulae Booklet 
• a protractor. 
Instructions 
• Use black ink or black ball-point pen. 
• Fill in the boxes at the top of this page. 
• Answer all questions. 
• You must answer the questions ...
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Audiology Praxis 5343 Exam 2023
- Exam (elaborations) • 19 pages • 2023
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Audiology Praxis 5343 
Exam 2023 
What is the relationship between fundamental frequencies and harmonics? - AnswerF0= lowest freq component of a complex periodic sound; harmonic is a regular and 
repeating multiple of the f0 
In which frequencies and at what intensities are most speech sounds produced? - 
Answer-When applied to speech, the human voice spans a range from about 125Hz to 
8kHz. 55-65 dB 
Define threshold - Answer-"Threshold is defined as the lowest decibel hearing level at 
wh...
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AQA 7407-2 PHYSICS-AS-PAPER 2 MAY 2023.
- Exam (elaborations) • 44 pages • 2023
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0 1 . 2 A metal wire of diameter d box is held in the gap between the anvil and the spindle. 
Just before the reading of d is taken, the gap is closed using the ratchet and not the 
thimble. 
Explain why the gap is closed in this way. 
[1 mark] 
0 1 . 3 The mass per unit length μ of the metal wire is given by 
 
2 
4 μ = 
πρd 
where ρ is the density of the metal. 
Values of d and μ are used to calculate ρ. 
The percentage uncertainty in d is 1.2%. 
The percentage uncertainty in μ is...
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COMD 5070 Exam 3 (Latest 2024 / 2025 Update) Acoustics of Speech and Hearing | Questions and Verified Answers | 100% Correct | Grade A - Utah
- Exam (elaborations) • 47 pages • 2024
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COMD 5070 Exam 3 (Latest 2024 / 2025 Update) Acoustics of Speech and Hearing | Questions and Verified Answers | 100% Correct | Grade A - Utah Q: How to calculate frequency? If there is a period of 2ms (0.002 seconds)?- Answer: 1/0.002= 500 Hz. Q: What is a harmonic series? Answer: When multiple sine waves or pure tones are combines together. Q: What are integer multiples? Answer: The whole number multiples of whatever the fundamental frequency is. Q: What is the fundamental frequency? Answer: Th...
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AQA AS PHYSICS BEST RATING Paper 2 May 2023
- Exam (elaborations) • 59 pages • 2023
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AQA 
 
 
 
 
AS 
PHYSICS 
Paper 2 
 
Wednesday 24 May 2023	Afternoon 
Materials 
For this paper you must have: 
•	a pencil and a ruler 
•	a scientific calculator 
•	a Data and Formulae Booklet 
•	a protractor. 
 
Instructions 
•	Use black ink or black ball-point pen. 
•	Fill in the boxes at the top of this page. 
•	Answer all questions. 
 
Time allowed: 1 hour 30 minutes You are advised to spend about 35 minutes on Section C 
 
•	You must answer the questions in the spaces pro...
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ATT Test 3 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A
- Exam (elaborations) • 14 pages • 2024
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ATT Test 3 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A 
 
Q: What is peak voltage? 
 
 
Answer: 
highest positive or negative voltage obtained 
 
 
 
Q: What is peak to peak voltage? 
 
 
Answer: 
determined by doubling peak voltage, from highest positive point to lowest negative point 
 
 
 
Q: What is average voltage? 
 
 
Answer: 
Calculated using sum of all angles contained in 180 degrees (0.637 X peak V) 
 
 
 
Q: What is RMS voltage? 
 
 
Answer: 
most ...
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COMD 5070 Final Exam (Latest 2023/ 2024 Update) Acoustics of Speech and Hearing| Questions and Verified Answers| 100% Correct| Grade A
- Exam (elaborations) • 25 pages • 2023
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COMD 5070 Final Exam (Latest 2023/ 2024 Update) Acoustics of Speech and Hearing| Questions and Verified Answers| 100% Correct| Grade A 
 
Q: what is the Nyquist frequency? 
half the sample rate 
 
 
 
Q: if you want to go up one octave, you ______ the frequency. 
 
 
Answer: 
double 
 
 
 
Q: if you want to go down one octave, you ______ the frequency. 
 
 
Answer: 
halve 
 
 
 
Q: what does a high pass filter do? 
 
 
Answer: 
allows high frequencies through 
 
 
 
Q: what does a low pass filte...
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Physics Practice (mostly doppler) Questions With Complete Solutions
- Exam (elaborations) • 26 pages • 2023
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Reflection from blood is very ________. correct answer: weak 
 
One motivation of using a higher transmit frequency for imaging is better ___________ resolution correct answer: detail 
 
The concept of harmonic imaging is to transmit at a ____________ frequency and receive at a _____________ frequency 
A. Lower; higher 
B. Higher; lower correct answer: lower; higher 
 
Harmonic imaging is based on transmitting at a lower frequency, called the ________________ 
A. Output 
B. Fundamental 
C. D...
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COMD 5070 Exam 3 (Latest 2023/ 2024 Update) Acoustics of Speech and Hearing| Questions and Verified Answers| 100% Correct| Grade A
- Exam (elaborations) • 30 pages • 2023
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COMD 5070 Exam 3 (Latest 2023/ 2024 Update) Acoustics of Speech and Hearing| Questions and Verified Answers| 100% Correct| Grade A 
 
 
Q: How to calculate frequency? If there is a period of 2ms (0.002 seconds)?- 
 
 
Answer: 
 1/0.002= 500 Hz. 
 
 
Q: What is a harmonic series? 
 
Answer: 
 When multiple sine waves or pure tones are combines together. 
 
 
Q: What are integer multiples? 
 
Answer: 
 The whole number multiples of whatever the fundamental frequency is. 
 
 
Q: What is the fundame...
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