Plot the power‐spectrum of the signal at 30.34 seconds. Use an analysis window of 23 ms. Your plot should be labeled as dB in the y‐axis and frequency (Hz) for the x‐axis. Comment very briefly on the spectral characteristic of the signal.

Version 1.0 (29 April 2002) } { - Support for Windows Media Audio (versions 7, 8) } { - File info: file size, channel mode, sample rate, duration, bit rate } { - WMA tag info: title, artist, album, track, year, genre, comment -Version 1.0 (29 A