Re: [LAU] Why does PHASEX sound so damn good?

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To: Ken Restivo <ken@...>
Cc: <linux-audio-user@...>
Date: Saturday, August 9, 2014 - 9:46 am

On Fri, Aug 08, 2014 at 04:47:26PM -0700, Ken Restivo wrote:

> It looks like this:

That's a very mild case, probably harmless. What I got, just by
selecting one of the presets ('classic pad' or something similar)
was a DC offset 30 times as big as the audio signal. In terms of
power that close to a 1000:1 ratio.

> > Whatever qualities it may have, this is crappy.

You can't hear DC. It may drive your speakers into some nice distortion
before the funny smell appears, but there are less dangerous ways to
achieve the same.

> Will Alexander once described Keith Emerson's Moog as having "no

That can be said of any synth in fact. And I'm pretty sure that
ELP's PA system was not DC-coupled - the mixers they used had
transformer inputs.

DC offsets occur naturally when using phase modulated oscillators
even if their basic waveform is DC-free. It's part of the way PM
synthesis works, and you want the DC in the modulation inputs. But
once the VCO outputs enter the other parts of the audio path it
should be removed. It's trivially simple to do that.

--
FA

A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)

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Messages in current thread:
[LAU] Why does PHASEX sound so damn good?, Ken Restivo, (Fri Aug 8, 1:24 am)
Re: [LAU] Why does PHASEX sound so damn good?, Fons Adriaensen, (Fri Aug 8, 10:22 am)
Re: [LAU] Why does PHASEX sound so damn good?, Ken Restivo, (Fri Aug 8, 11:47 pm)
Re: [LAU] Why does PHASEX sound so damn good?, Fons Adriaensen, (Sat Aug 9, 9:46 am)
Re: [LAU] Why does PHASEX sound so damn good?, Gene Heskett, (Sat Aug 9, 1:11 pm)
Re: [LAU] Why does PHASEX sound so damn good?, Fons Adriaensen, (Sat Aug 9, 4:08 pm)
Re: [LAU] Why does PHASEX sound so damn good?, Gene Heskett, (Sat Aug 9, 8:47 pm)
Re: [LAU] Why does PHASEX sound so damn good?, Paul Davis, (Sat Aug 9, 11:23 pm)
Re: [LAU] Why does PHASEX sound so damn good?, Gene Heskett, (Sun Aug 10, 2:47 am)
Re: [LAU] Why does PHASEX sound so damn good?, Will Godfrey, (Sat Aug 9, 9:09 pm)
Re: [LAU] Why does PHASEX sound so damn good?, Will Godfrey, (Sat Aug 9, 5:38 pm)
Re: [LAU] Why does PHASEX sound so damn good?, Fons Adriaensen, (Sun Aug 10, 9:44 am)
Re: [LAU] Why does PHASEX sound so damn good?, Tito Latini, (Fri Aug 8, 8:57 am)
Re: [LAU] Why does PHASEX sound so damn good?, Ralf Mardorf, (Fri Aug 8, 7:00 am)