Signal sampling Study guides, Class notes & Summaries

What is the common theme among all analog signals? - Answer-There are infinite possibilities. What is the common theme among all digital signals? - Answer-There are discrete and finite possibilities. 1s and 0s are called...? - Answer-Bits. A group of 4 bits is a...? - Answer-Nibble. A group of 8 bits is a...? - Answer-Byte. A "word" is another group of bits whose length is processor dependent. It can be...? - Answer-16 bits, 32 bits, 64 bits, etc. How many states can be represented in a...

COMD 5070- EXAM 3 (FINAL)what is science - correct answer the study of the natural world 4 features of the scientific method - correct answer empirical deterministic predictive parsimonious empirical - correct answer based on data deterministic - correct answer obeys physical laws predictive - correct answer If you do this, then that will happen how many semitones in one octave - correct answer 12 how many semitones in two octaves - correct answer 24 octaves work in _____...

CT Physics Final Exam Review with 100% correct answers What two terms are used to describe patient dose in computed tomography? - answerCTDI & MSAD What converts an analog signal (voltage) into digital data (numbers)? - answeran analog-to- digital converter What is the total number of gray levels called? - answerthe gray scale What can be done to reduce the amount of data that makes up the image? - answerimage compression What is the logical order in digitizing an image? - answerscannin...

Nyquist Theory Answer The specification of the minimum sampling rate used, in relation to the highest frequency signal recorded The sample rate must be twice that of the highest frequency to be recorded. For LFF, the corresponding time constants for LFF cutout freq. of 3 hz would be __ Answer .05 seconds The most prominent clinical feature of Dilantin toxicity? Answer Ataxia Ataxia Answer lack of muscle coordination Agnosia Answer the inability to recognize familiar objects. Apra...

AAERT CER Exam Complete Questions with correct Answers Methods of audio recording Analog and digital Microphone Converts acoustical energy that is sound into electrical signal that can be delivered to either an analog or digital device Path of digital audio To change the analog signal to a digital signal it will need to pass through an analog to digital converter (digital mixer or A/D converter) Sample rate Number of samples taken each second when recording sound. (44.1 kHz,...

ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS ALREADY PASSED In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is the length of time it takes for one complete wavelength to pass a fixed poin...

CT Physics Final Exam Review with 100% correct answers What two terms are used to describe patient dose in computed tomography? - answerCTDI & MSAD What converts an analog signal (voltage) into digital data (numbers)? - answeran analog-to- digital converter What is the total number of gray levels called? - answerthe gray scale What can be done to reduce the amount of data that makes up the image? - answerimage compression What is the logical order in digitizing an image? - answerscannin...

BCIA Neurofeedback Exam: Demos study guide Day 2 with Complete Solutions Describe how electrical activity coming from the scalp is transformed into the EEG - Correct Answer Electrodes detect signals (in microvolts) coming from the scalp that are amplified and transformed via digital or analog processing. The EEG is an analog representation of electrical activity coming from the scalp. Morphology - Correct Answer The visible shapes and contours of the EEG waveform that give its visual appeara...

Which of the following will strengthen signals as they move farther away from the headend through the trunk express system? Answer B) Distribution amplifiers. Which of the following describes a carrier wave? Answer B) A wave with a much higher frequency than the input signal. Which of the following describes modulation? Answer B) The reshaping of a carrier wave to include information contained by an input signal. Which of the following is the symbol for power? Answer W = watts Which ...

RMS (root mean square), jitter, shimmer, VOT correct answers What can we measure from speech recordings? 1) loudness __________ amplitude = intensity measure of a sound window 2) pitch (vocal fold vibration characteristics) and formants (from the filter) 3) change in voice over time _______ = variations in frequency _______ = variations in amplitude timing and sequence can be measured using ___ 2, twice, nyquist, 1/2, aliasing correct answers How many points are NECESSARY to recons...