Am 01.12.2008 um 15:21 schrieb Andy Farnell: > > > It's quite rare to find a sound card and amplification system > that can actually deliver DC. These are usually specialised > DACs for control applications. Regular audio equipment uses > DC blocking capacitors (analogue high-pass) that won't admit > anything much below 5-10Hz. > > All the same, if you are using an experimental signal processing > system like Pd or any other computer music language along with > high power amplification for a live audience, it is sensible > to add a compressor/limiter at the end of the chain. For the > sake of your audience rather than the speakers. > > This should be a separate piece of hardware, not part of > the software system that could fail. >
Hi, yes thats my experienc, too. I tried to use limiter~, but wasnt satisfied. it created some crackles with extreme signals, like pure sine-tones i would recommend a hardware solution as well. > > On Mon, 1 Dec 2008 08:50:41 -0500 > "Spencer Russell" <[EMAIL PROTECTED]> wrote: > >> Most of my live performance work involves realtime processing of >> upright bass, and I find myself often using a lot of very short >> variable IIR taps (delays with feedback). >> >> I use either my 500-watt bass amp or the house PA as output. >> >> Right now I don't have any explicit patchage to make sure I'm not >> pumping out any signal that's straining the amplification system, and >> if I watch my speakers as I play I often see them popping in and out >> in a distressing fashion. >> >> I'm thinking I should start including some basic speaker protection >> into the output stage of my patches, mostly a limiter and highpass >> filter to get rid of any sub-audio and DC signal. >> >> Is this necessary? I assume that either the output of the firebox or >> the input of my amplification setup is AC-coupled and should be >> getting rid of DC anyways, but we all know what happens when you >> assume. >> >> Are other people using speaker protection patches? Anything more >> sophisticated than the classic [hip~ 5] before the output? >> >> -spencer >> >> _______________________________________________ >> Pd-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list > > > -- > Use the source > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
