Not getting audio with CD player on Red Hat 8.0

When attempting to play an audio CD, Gnome CD Player appears to be playing 
the CD but there's no audio.  Red Hat detects a Yamaha sound card and loads 
the ymfpci module, which plays the test sound properly. The system logs 
include the following messages when a CD gets loaded in the player:

modprobe: Can't locate module sound-slot-1
modprobe: Can't locate module sound-service-1-0

modules.conf has the following sound configuration:

alias sound-slot-0 ymfpci
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L >/dev/null 
2>&1 || :
pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 
2>&1 || :

What am I missing?

--RWS

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