MP4_REMON_XELA JANE F.

MP4_REMON_XELA JANE F. - Remon, Xela Jane F. MP4 Sampling...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Remon, Xela Jane F. MP4 – Sampling and Aliasing Exercises: 1. Choose tone 1 at 800 Hz and tone 2 at 300 Hz. Set the sampling frequency at 2000 Hz. Play both the original signal and the recovered signal after sampling. Do you hear any differences? Did aliasing occur in this case? There are no differences between the original and sampled signals, therefore, aliasing does not occur in this case. 2. For the same tones, set now the sampling frequency at 1000 Hz. Listen to both sounds. Do you hear any differences now? Which tone suffered aliasing? What is the cutoff frequency of the low-pass filter? What are the frequencies of the tones that are present in the signal after low-pass filtering? In this case, the two tones have different sound. The tone that suffered aliasing is tone 1 which is 800 Hz, because fs<2fa aliasing occurs. The cut off frequency is 500 Hz, from the formula fc = fs/2.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3. Now set the sampling frequency at 500 Hz and listen again to both sounds. Which tones are now aliased? What are the frequencies that are present in the signal after
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/26/2011 for the course ENGR 12 taught by Professor Pas during the Spring '11 term at Blue Ridge.

Page1 / 5

MP4_REMON_XELA JANE F. - Remon, Xela Jane F. MP4 Sampling...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online