kern/49370: Pop from speaker when booting

[andrew.cagney%gmail.com@localhost]

>Number:         49370
>Category:       kern
>Synopsis:       Pop from speaker when booting
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Nov 06 14:55:00 +0000 2014
>Originator:     Andrew Cagney
>Release:        NetBSD 7.0_BETA (GENERIC.201410252300Z)
>Organization:
>Environment:
NetBSD 7.0_BETA (GENERIC.201410252300Z, and every build I've tried since
>Description:
During boot, from memory here:
audio1 at pad0: half duplex, playback, capture
while the speaker is being initialized, the speaker emits an annoying pop.

>How-To-Repeat:
boot system
hear pop
>Fix: