On Sun, 2006-02-26 at 14:49 -0800, Kevin Cosgrove wrote: > On 26 February 2006 at 20:50, Dan Mills <dmills@xxxxxxxxxxxxxxxxxxxxx> wrote: > > > Surely -INF dB SPL? > > Negative dB would imply that the unit absorbs sound. Do you think it > does that? 0dB indicates it neither creates nor absorbs sound. Heh, maybe active noise suppression (where you measure the noise in realtime and suppress it by generating the inverse waveform) is the way to go - has anyone tried this approach for silencing a PC? Lee
