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For reference, fig.3 shows the spectrum of the signal on the CD. Other than the well-defined green vertical lines representing the tones and the uniform background noise, the spectrum is clean. Important points to note with this graph are that 1) all musical fundamentals lie to the left of the 4000Hz (4kHz) mark; 2) the region between the next three divisions, 4kHz, 8kHz and 16kHz, is where musical harmonics and the "air" on a recording reside; and 3) the region above 16kHz—more than a quarter of the horizontal scale—will be inaudible to most adults. Fig.3 Spectrum of 500Hz-spaced multitone signal at –10dBFS, 16-bit linear PCM encoding (linear frequency scale, 10dB/vertical div.).
BLOND | STRING QUARTET | STRING QUARTETS TO HIRE HERTFORDSHIRE | WEDDING QUARTET | HIRE BLOND FROM ALIVE NETWORKNew! Christmas Repertoire! Bell Carol/In Dulci Jubilo (Traditional) Bring a Torch Jeanette Isabella (Traditional) Carol of the Drum (Little Drummer Boy) (Davis) Christmas Medley 1, includes: Silver Bells, Let it Snow, Have yourself a merry little Christmas, White Chritmas Last Christmas- Wham!