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Eecs 1520 Final Exam Questions With 100% Correct Answers | Latest Version 2025/2026.

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Amplitude - ANS Related to intensity Frequency - ANS Related to pitch Nyquist Shannon sample interval and sampling frequency - ANS Sample interval ≤ half period Sampling ≥ 2x max frequency Bit depth formula - ANS Bit depth= bit rate/ sampling frequency Bit rate formula - ANS Bit rate = sampling frequency x bit depth x # of channels Human Hearing Range - ANS 16 Hz- 20 kHz What does lossy audio do? - ANS 1. Removes imperceptible sounds using psychoacoustic models 2. Reduces bit rate (less accurate reproduction of original) 2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED Audio codecs - ANS Lossless: FLAC Lossy: MP3 and AAC Vector graphics advantage and disadvantage - ANS Advantage: Can be enlarged without loss of detail or change in file size. NO PIXELATION Disadvantage: Cant get very complex Raster Graphics advantage and disadvantage - ANS Advantage: Can create complex images Disadvantage: Suffers for pixelation when enlarged Image Formats - ANS Lossless: GIF and PNG Lossy: JPEG Video Compression Techniques - ANS Spatial: Intra- frame (uses info from same frame to reduce file size) Temporal: Inter-frame (uses data from nearby frames to reduce file size) - Key frames ( I-frames) - P frames (Predictive) - B frames (Bidirectional) CBR be VBR - ANS Constant bitrate: same but rate throughout video Variable bit rate: Allows higher but rates during fast motion scenes and lower bit rates when there is little m

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EECS 1520 FINAL EXAM QUESTIONS
WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.




Amplitude - ANS Related to intensity



Frequency - ANS Related to pitch



Nyquist Shannon sample interval and sampling frequency - ANS Sample interval ≤ half period
Sampling ≥ 2x max frequency



Bit depth formula - ANS Bit depth= bit rate/ sampling frequency



Bit rate formula - ANS Bit rate = sampling frequency x bit depth x # of channels



Human Hearing Range - ANS 16 Hz- 20 kHz



What does lossy audio do? - ANS 1. Removes imperceptible sounds using psychoacoustic
models
2. Reduces bit rate (less accurate reproduction of original)




1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED

, Audio codecs - ANS Lossless: FLAC
Lossy: MP3 and AAC



Vector graphics advantage and disadvantage - ANS Advantage: Can be enlarged without loss
of detail or change in file size. NO PIXELATION


Disadvantage: Cant get very complex



Raster Graphics advantage and disadvantage - ANS Advantage: Can create complex images


Disadvantage: Suffers for pixelation when enlarged



Image Formats - ANS Lossless: GIF and PNG
Lossy: JPEG



Video Compression Techniques - ANS Spatial: Intra- frame (uses info from same frame to
reduce file size)


Temporal: Inter-frame (uses data from nearby frames to reduce file size)
- Key frames ( I-frames)
- P frames (Predictive)
- B frames (Bidirectional)



CBR be VBR - ANS Constant bitrate: same but rate throughout video


Variable bit rate: Allows higher but rates during fast motion scenes and lower bit rates when
there is little motion



2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED

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