HW 05: FREQUENCY RESPONSE
- Generate a sum of sinewaves at frequencies of 500, 1000, and 1500 Hz
at a sample frequency of 8 kHz for a duration of one second. Compute
the Fourier transform magnitude spectrum for a window centered
at 0.5 secs for window lengths of 5, 10, 20, 40, and 80 msec. Explain
your results.
- Generate a sequence of plots similar to
Example
for an isolated word (e.g., "six" from the TIDigits Corpus) and
a four-word sequence (e.g. "six three one two" from the TIDigits
Corpus). Explain your results and compare to the data presented
in class.
- For the isolated word example above, implement a simple cepstral-based
homomorphic deconvolution system, and display the results in a format
similar to
Source-Filter.