How to make a 40ms soundtrack of white noise

[painlab]

HI,
I need a track with 9 (40ms) bursts of white noise (20-30 seconds apart), but I can only get it to generate 30-sec of white noise. Any suggestions?!

[whomper]

my generate noise allows a time selection in 1.3.9
I put in 90 seconds and got 90 seconds of noise.
Want gaps? insert silence.
or generate samples in 9 files and slide them to the time location
then merge the files

what version are you using? What did you do ?
why do you think you can only get 30 seconds?

if you meant you could not get smaller samples than 30 seconds
then pick the drop down arrow
and choose h m s and milliseconds
select 40 ms for sample length

my problem would be with the statistics.
it seems to have a very narrow amplitude variance.
and the mean does not make sense since i have to specify 0-1 instead of db level.

this may actually be white noise
but does not look like scope samples i saw in a lab once
that said it sounds sort of like white noise but a bit harsher and sharper - probably close enough for govt work

feature request
allow setting mean in db and also variance of the noise generated.

[steve]

1) Generate 0.04 seconds of white noise
2) Press the "End" key to move the cursor to the end
3) Generate 20-30 seconds of silence
4) Press Ctrl+A (select all)
5) From the Effect menu select "Repeat" and enter the number 8, then press OK.