| On Sat, 18 Apr 1998, tolve wrote:
> concerned that subsonic sideband frequencies that result from fm might
> damage speakers. tried to check out some files with sndinfo, but base Frq
> doesn't show up in the report on ppc running csound 3.48. how do i
> ascertain lowest frequency?
Hi, although I don't have a specific answer to this question, the general
question of avoiding speaker/headphone/ear damage is one that has always
been on my mind, and surprisingly I haven't seen this obvious
high-priority topic discussed much.
First, regarding subsonic frequencies; is it really true that these are
bad for speakers? Aren't they blocked by the amplifier? If not, what is
the mechanism by whitch they are damaging?
Diverging to the more general topic of avoiding speaker damage, I think it
would be interesting to hear what techniques people on the list tend to
use. I'm speaking of the harzards involved when generating sound-files, as
computer-music composer do, and not general techniques for avoiding
damage from known-good sound sources.
Currently, I use the "first listen with cheap headphones" technique.
Along these lines, I've always thought it would be neat to have some way
do detect mismatches sound formats (like littl/big endian mixups) at the
back end, for example in the sound driver itself. I suppose things like
this, and simlar problems like amplitude overflow, are the things I most
worry about.
Looking forward to comments.
Larry
-- Larry Troxler --
lt@westnet.com -- Patterson, NY USA --
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