At least on 4.6/i386, the manpage of audioctl(1) mentions a "play.sample_rate" variable in the EXAMPLES, but the audioctl utility itself only seems to use "play.rate". Is that a naming relict, or have I simply not seen enough audio chips?
Jan --- audioctl.1~ Mon Nov 9 13:06:14 2009 +++ audioctl.1 Mon Nov 9 13:06:48 2009 @@ -89 +89 @@ -.Dl $ audioctl play.sample_rate=11025 +.Dl $ audioctl play.rate=11025