OSS or ALSA in use: How can I tell?

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Autor: Ed Skinner
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Asunto: OSS or ALSA in use: How can I tell?
Is there a quick way to tell if the sound subsystem is using OSS or ALSA?=
=20
Something shell-level would be great.
TIA

--=20
Ed Skinner, , http://www.flat5.net/