User`s manual

30
Track Time
Noise Description
Setup Comments
1 02:30 500 Hz tone Training CD Track 1 Solution A.dac
Training CD Track 1 Solution B.dac
Adjust Notch Freq to null tone
Single tone requires small filter size
2 02:20 400 Hz and 1100 Hz
tones
Training CD Track 2 Solution A.dac
Training CD Track 2 Solution B.dac
Adjust Notch Freq to null tones with
notch filter(s)
Compare adaptive and notch filters
3 01:11 Swept tones Training CD Track 3 Solution A.dac
Training CD Track 3 Solution B.dac
Adjust Prediction Span and Adapt
Rate comparing effects
Compare use of ASIF to balance audio
4 02:21 High frequency hiss Training CD Track 4 Solution A.dac
Training CD Track 4 Solution B.dac
Adjust LPF cutoff and attenuation
Compare with addition of Adaptive and
SIF to improve quality
5 00:44 Radio interference Training CD Track 5 Solution A.dac
Training CD Track 5 Solution B.dac
Combined use of small and large
adaptive filters, small for tones, large
for reverb
Added Noise Reducer
6 01:14 A.C. hum Training CD Track 6 Solution A.dac
Training CD Track 6 Solution B.dac
Hi Res Graphic restores high
frequencies. Adjust Comb Frequency
to minimize 60 Hz hum
Compare addition of SIF
7 02:40 Telephone A.C.
hum
Training CD Track 7 Solution A.dac
Training CD Track 7 Solution B.dac
Adjust Comb Frequency to minimize
60 Hz hum
ASIF added to make audio sound more
natural
8 02:24 Acoustic resonances Training CD Track 8 Solution A.dac
Training CD Track 8 Solution B.dac
SIF and Adaptive use to remove
resonances
ASIF used instead of SIF
9 02:34 Jail Cell Training CD Track 9 Solution A.dac
Training CD Track 9 Solution B.dac
Hi Res Graphic restores high
frequencies
Adaptive filters used to attack
resonances
10 01:11 Body transmitter Training CD Track 10 Solution A.dac
Training CD Track 10 Solution B.dac
Hi Res, SIF, and Adaptive used to
reduce reverb
Adaptive used first
11 02:26 Bar music Training CD Track 11 Solution A.dac
Training CD Track 11 Solution B.dac
Filter cannot separate voices (spoken or
sung) but does reduce muffling
Compressor/Expander used in
conjunction with ASIF
12 02:10 Interview and
argument
Training CD Track 12 Solution A.dac Very muffled audio with rumble noises,
adaptive filters and NoiseEQ used to
reduce
13 04:52 Radio/TV Training CD Track 13 Solution A.dac
Training CD Track 13 Solution B.dac
Ref Canceller adaptive filtering
followed by Adaptive to reduce reverb
Addition of Lowpass and ASIF to
reduce high frequency music noises
Table 3.1 PCAP II
Plus
Training CD Summary