Project 2

.pdf

School

Utah State University *

*We aren’t endorsed by this school

Course

5070

Subject

Electrical Engineering

Date

Dec 6, 2023

Type

pdf

Pages

2

Uploaded by JusticeThunderMandrill26

Report
Project 2 Assignment 1. Sample rate - Describe the sound quality and report the file size for the 44100 Hz recording, saved as a wav file. (8 points) The quality on this sound file is nice and clear. File size: 586 KB. - Describe the sound quality and report the file size for the 16000 Hz recording, saved as a wav file. (8 points) The sound quality on this recording is less clear then the previous one. File size: 585 KB - Describe the sound quality and report the file size for the 8000 Hz recording, saved as a wav file. (8 points) The sound quality decreased, and sounded more fuzzy. File size: 120 KB - Describe the sound quality and report the file size for the 4000 Hz recording, saved as a wav file. (8 points) The sound quality seemed to go down, and sounded even more fuzzy than the previous. File size: 156 KB - Describe the sound quality and report the file size for the 1000 Hz recording, saved as a wav file. (8 points) This recording seemed to be of the same quality as the last one, but it was still fuzzy. File size: 153 KB 2. Waveforms for Speech Sounds (Make sure these phonemes are recorded at 44100 Hz.) - Describe the visual appearance of the phoneme /a/. (8 points) This waveform looks a lot like rolling hills. It is a consistent up and down, never reaching above or below 0.5 or -0.5. - Describe the visual appearance of the phoneme /i/. (8 points) The waveform of this phoneme looks like a lightening strike. It is consistently up and down, never going very far from the 0 line. - Describe the visual appearance of the phoneme /s/. (8 points) Upon further examination of this phoneme’s waveform, it looks like a dot plot on either side of the 0 line. - Describe the visual appearance of the phoneme /z/. (8 points) The waveform of this phoneme looks like small, choppy waves. It never goes very far from the 0 line, returning very quickly. - Describe the visual appearance of the phoneme /m/. (8 points) The waveform of this phoneme looks like a perfect up and down, not going very far from the zero line, but leaving and returning symmetrically. 3. Audacity Effects
- Describe what you did with your three miscellaneous effects from the Audacity menu choices. How did the sound change? Could any of these effects be used for something useful, or are they just for fun? (20 points) I changed the pitch from F Flat G minor 5 to F flat g Minor 9. This made it so I couldn’t tell what I was saying anymore. It was just scratchy! I also did a 5 percent tempo change. This made it so I really couldn’t tell what was being said. It sped the whole thing up. I also changed the speed by 7 percent. It sped it up even more! I think that these effects are definitely fun, but I think they could be useful, especially the speed feature. Sometimes it would be nice to be able to speed up or slow down someone’s speech to be able to tell what they are saying!
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