We've got signal, but what the heck is it?
That's your mission. Analyze this bébé.
download the audio file 2.wav.gz
hints :
-
Setup baudline to be a Netscape helper application as described
in the FAQ.
-
Ignore the 60 Hz AC power leakage and its harmonics (120 Hz,
180 Hz).
-
Turn on the 60 Hz notch filter in the play deck.
-
Try playing the mystery signal at different speeds, slow
it down or drop it an octave.
-
Loop on the transitional points, play it again and again
until you start to hear things.
-
Measure the harmonic relationships with baudline's
harmonic helper bars.
Use this handy tool to determine the fundamentals.
-
Look at the major frequency rise at the start, and the fall
near the end. How are they different? What is going on?
-
Look for clues in the four blips during the steady state
part. Model that behavior.
What is it?
Click here for the answer. |