-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, Oct 29, 2007 at 10:52:15PM +0100, Fons Adriaensen wrote: > On Sun, Oct 28, 2007 at 06:45:54PM +0100, leslie.polzer@xxxxxxx wrote: > > > > You cannot do that in a sane way - the output of a guitar pickup needs to be > > > modified (amplified and converted to high impedance) before, otherwise the > > > signal will suffer (treble loss). > > > > I believe you, but I'd be grateful if someone could explain to me how > > one would know that the treble will suffer? I mean, we were talking > > about real impedancies, and to determine how the line will react with > > respect to certain frequencies we would need the complex part... > > The impedance of a guitar PU is mostly inductive, i.e. it rises > with frequency. So if you load this with a low impedance the > effect is that of a low-pass filter. That's the simplest case - > in practice the inductance can resonate within the audio band > when connected to a cable (which is capacitive) and this is why > guitar cables can have a distinctive sound. > > Anyway, for a guitar you need a high-impedance input, not a > microphone input. > My audio interface has a switch with two settings: "instrument" and "line" for its XLR/TRS jacks. No "mic" setting, surprisingly. I'm guessing that would be "line". It also has a "pad" switch for dealing with hot inputs. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFHKT3le8HF+6xeOIcRAtoKAJ94ia2hJeV7kGyBYpk76lWSEeffAgCfWzGD X97e5HTpGCG4X54hT3r8kY4= =rjLm -----END PGP SIGNATURE----- _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
