25 Oct
2002
25 Oct
'02
8:52 p.m.
Steve Harris wrote:
the neck, usually placed exactly where the second octave is on
an over-sized fretboard, has far less dominant harmonics than
the bridge. your bass probably is a fender 'precision' type.
usually the split pickup is in the 'neck' position, though it
is much closer to the bridge than on a guitar, because the
sound becomes too dull if you pick up too little harmonics i
guess.
always. i think it might be because a real valve amp sort of
'spreads the excess power' by turning the wave into almost
square at this point, where the guitar signal carries a lot of
energy. more of a limiter effect, right?
On Fri, Oct 25, 2002 at 10:15:20 +0200, Tim Goetze
wrote:
OK, I have some pending (easy) improvements to the meters, then I'l get
onto this.
:)
Nope, that
would be hard ;) I was thinking of having a second, hard
clipping alg. and bringing that in for high ampltudes.
oh yes, please keep on bringing them on. i put in a
music-dsp shaper (archive credits patrice tarrabia
and bram) after the inverter, and with some eq (hp basically)
before entering the first valve, it sounds surprisingly good.
especially with the bridge pickup, the neck pickup is still a
bit muddy.
OK, time for a quick lesson - whats the difference between the pickups? My
bass (cheapish active 4 string) has two sets, a single wide one and a pair
slightly offset (they say duncan on them FWIW). There is a knob that, I
think crossfades between them. * it
doesn't noticeably prolong sustain.
* the attack phase is 'flat', compared to the ringing
of the real thing.
OK... could this be a property of the cliping? Or is it always there? * the sound
gets muddy and faint when you turn down the
volume at the instrument, instead of keeping loudness and
reducing distortion.
This is another compression effect I suspect. I think that the compression effect in a guitar amp is
much faster than
what you get from a general purpose compressor. I think it is more like a
slow acting saturation. My Valve rectifier plugin (valve_rect) was an
my thoughts, too.
attempt to capture that, but I expect it needs
adjusting, or rewriting.
i just tried it before the first valve and it does help a
good deal to have a better attack [in fact i got carried
away strumming a funk pattern, a first time for playing the
guitar through the box], but i'm slowly running out of cpu.
i guess a real HP has to be added, too (the pre-eq is done in
the mixer now) because the lower band still has too much shaping
power over the sound (sort of an auto-wah effect, emphasizing
the 'flat attack' problem).
tim