[9fans] /dev/audio test file

[YAMANASHI Takeshi <9.nashi@gmail.com>]

Hi.  I bought a USB audio.  I think usbd and usbaudio is working
because cat /dev/audioctl works ;).

    % nashi@valinore usb/usbd
    % nashi@valinore usb/usbaudio -v 100
    warning: Can't set play speed
    % nashi@valinore cat /dev/audioctl
    speed out 48000 48000 48000
    mute out 0 0 0 0
    volume out 100 -11776 7168 512
    channels out 2 2 2
    resolution out 16 16 16

Yet, I don't have any good test file to feed to /dev/audio.
Giving /mnt/cd/a000 didn't produce any sound on usb speakers.

    % cdfs
    % cat /mnt/cd/a000 > /dev/audio

Could somebody give me a tiny file to feed to /dev/audio so that
I can make sure that my speakers are configured correctly.
Or is there a way to convert a??? files to /dev/audio format?

Thanks in advance,
-- 
Sincerely,
YAMANASHI Takeshi