no sound output when using ioctl

i am working on RED HAT 9.1 ver 2.2.4

i am trying to play .wav files on my system using"bplay'' or "ALSA" .
Both of these use ioctl to render dat to to the device but i am not
able to do so on my system. every thing seems to work fine but there is
no out put on my speakers.

i am also not able to here anything using

cat sample.wav > /dev/dsp

can anoyone guide me

thanks in advance



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