There are some programs requiring sound device /dev/dsp, you won’t have that if you ain’t using OSS. But with aoss of alsa-oss, the Advanced Linux Sound Architecture OSS compatibility layer, you can wrap the programs with aoss:

aoss osscommand [arguments]

And you can try something like

aoss tee /dev/dsp < /dev/urandom > /dev/null

Can’t just use cat /dev/urandom > /dev/dsp since we need a real command rather than a shell redirection for aoss, so tee can help that out, but a redirection is needed to mute the standard output.