Antex Electronics SX-5e - Manual (Page 52)

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Files I record sound “dull”.
1. Use a higher sample rate. Lower sample rates reduce the
high frequency content, making recordings sound dull.
There is a lot of noise or hum, even when the Antex Card is
idle.
1. There may be a wiring problem. Make sure the shields are
grounded, especially with unbalanced connections. Don’t run
cables close to hum producing equipment, such as transform-
ers.
2. Don’t run unbalanced connections long distances. Generally,
unbalanced is OK for less than 6 feet. (This is of course, not a
hard and fast rule; your system won’t suddenly sound noisy
going from 6 feet of cable to 7 feet.)
3. Make sure signal levels are matched. Set the Play sliders in
the Antex Demo or Antex Mixer applications at or close to
maximum for lowest noise level. Set the Trim Control to +8
rather than +20 if possible (SX-6, SX-36). Control the loud-
ness with the master volume control on the mixer board or
amplifier rather than using the software sliders.
Files I record sound distorted.
1. The first obvious thing to check is that the record level is not
clipping; VU meters going into the red. (Occasional peaks in
the red are OK.)
2. If recording from the Line Out and using the feed-through
controls to adjust the record level, it is possible to overload the
input to the Antex Card and still have the VU meter not go into
the red. This means the signal coming into the Antex Card is