Creative SOUND BLASTER PRO User Reference Manual page 152

SOUNDBLASTER^
• ' z
PROBLEM
CAUSE
REMEDY
you can ry o look a IRQ7 again. If i is also used up,
ry o look for he jumper on your sys em board or
Parallel I/O card ha allows you o disable IRQ7 for
LPT1:. You can consul he respec ive manual or your
compu er vendor on how o do his.
Voice Recording oo sof .
Microphone used is no sensi ive enough.
Use a 600-ohm microphone wi h a sensi ivi y of -75 dB
or be er for good recordings.
As a rule of humb, one ha cos s more han US$30
should do he job. Remember o buy a 1/4 inch o 1/8 inch
adap or-jack if he microphone has a 1/4 inch jack. A
condenser microphone works will wi h he Sound Blas er
card.
PROBLEM
CAUSE
REMEDY
PROBLEM
CAUSE
REMEDY
Background s a ic noise from he speakers.
Noisy power supply of he compu er sys em.
Compu er sys ems are well-known o be he grea es
producers of elec rical noise. Much care had been aken
in hedesignof Sound Blas er Pro ' s buil -in amplifier o
reduce as much noise from he compu er ' s power supply
as possible. There are, however, some compu er sys ems
ha simply produce oo much noise. These noise are
picked up and amplified o audible range when he power
amplifier is se a a high volume. There is no good
remedy here, excep o urn down he volume con rol. If
louder volume is desired, ry o amplify using an ex ernal
amplifier.
" No in errup vec or available " error when running
SBFMDRV.
All he DOS sof ware in errup vec ors (INT 80H -
OBFH) are aken up by a residen program ha is misbe ­
having.
Mos commonly, he misbehaving residen program is a
DOS MENU residen program in your
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