TC Electronic Broadcast 6000 - Manual (Page 55)

55
paGe Head
in dept
H
55
paGe Head sample raTe COnVersIOn fIlTers - ada 24/96
Fig. 2
Fig. 3 illustrates how attenuation is performed just above
FS/2 when operating at 48kHz sampling rate. As shown in
fig. 4 alias components will be reflected around FS/2 and
will disturb the high but still audible frequencies.
Fig. 3
0dBFS
-24dB
-48dB
-72dB
-96dB
-120dB
-144dB
DC 12k 24k 36k 48k 60k 72k 84k 96k
0dBFS
-24dB
-48dB
-72dB
-96dB
-120dB
-144dB
DC 12k 24k 36k 48k 60k 72k 84k 96k
FREQUENCY
LEVEL Fs/2
48kHz
Fs
96kHz
FREQUENCY
Fs/2
48kHz
Fs
96kHz
LEVEL
96kHz Sampling
Attenuation of analog input signal vs frequency
96kHz Sampling
Reproduced downsampled signal
Fs/4
24kHz
Note: Different downsampling
algorithms available
Fig. 4
0dBFS
-24dB
-48dB
-72dB
-96dB
-120dB
-144dB
DC 12k 24k 36k 48k 60k 72k 84k 96k
0dBFS
-24dB
-48dB
-72dB
-96dB
-120dB
-144dB
DC 12k 24k 36k 48k 60k 72k 84k 96k
FREQUENCY
LEVEL Fs/2
48kHz
Fs
96kHz
FREQUENCY
Fs/2
48kHz
Fs
96kHz
LEVEL
96kHz Sampling
Attenuation of analog input signal vs frequency
96kHz Sampling
Reproduced downsampled signal
Fs/4
24kHz
Note: Different downsampling
algorithms available