[linux-audio-user] abusive audio, will it blow up the PA?

[Mark Knecht]

On 1/11/07, Atte André Jensen <atte.jensen at gmail.com> wrote:
> Hi
>
> I've been playing with fastbreeder, and am extremely pleased with the
> truly wonderful noises it can do (thanks Dave!!!!)
>
> However looking at some of the results in mhwaveedit it seems that it's
> injected with electrical/non-acoustic phenomenons like dc-offset and low
> frequencies. I'm wondering how a home stereo and/or a large PA would
> react to such sounds? Is there anything I should/could do to prevent
> black smoke from coming out of amplifiers and speakers (ears would be ok
> :-))? Or should I simply not worry.
>
> I put a sample at http://atte.dk/download/fb_abuse_groove_3.ogg if
> someone wants to have a look for themselves what I'm referring to...
>
> --
> peace, love & harmony
> Atte

Hi Atte,
   I doubt the DC offset would get as far as the PA or stereo.
Something in the signal path is going to be AC coupled for safety
reasons so that would get knocked out. (None the less be careful!) :-)

   As for the low frequency issue why not put a high pass filter, in
Jack Rack or in the program itself if it supports normal LADSPA
plugins, to get rid of that issue?

Hope this helps,
Mark