29 Mar
2007
29 Mar
'07
3:58 p.m.
As many of you will know I principally use ZynAddSubFX to generate most
of my sounds, so I can't really be sure if this is a Zyn problem or a
general one with software synths and mixing.
Very occasionally I get high amplitude spikes typically 6dB above the
'normal' peaks. These give a false idea of the signal level so that if
I'm not watchful I end up recording at a much lower level that I need
to.
I have found that if I let these peaks go into limiting, there is no
detectable audio effect, and displaying the waveform very stretched in
Audacity shows just these occasional spikes neatly clipped.
Can anyone suggest a way I can effectively suppress these peaks while
actually recording (rather than going back later, checking, then
re-recording) or is there a VU type metering program that can be tacked
on to jack?
--
Will J G
29 Mar
29 Mar
4:01 p.m.
On 3/29/07, Folderol <folderol(a)ukfsn.org> wrote:
Can anyone suggest a way I can effectively suppress
these peaks while
actually recording (rather than going back later, checking, then
re-recording) or is there a VU type metering program that can be tacked
on to jack?
meterbridge
5:18 p.m.
2007/3/29, Folderol <folderol(a)ukfsn.org>rg>:
As many of you will know I principally use ZynAddSubFX
to generate most
of my sounds, so I can't really be sure if this is a Zyn problem or a
general one with software synths and mixing.
Very occasionally I get high amplitude spikes typically 6dB above the
'normal' peaks. These give a false idea of the signal level so that if
I'm not watchful I end up recording at a much lower level that I need
to.
Whats the problem with recording at lower volume? As long as there is
no da/ad involved you won't have any quality-loss.
But I prefer to work with hot-signals too. ;-)
Arnold
--
visit http://www.arnoldarts.de/
---
Wenn man mit Raubkopien Bands wie Brosis oder Britney Spears wirklich
verhindern könnte, würde ich mir noch heute einen Stapel Brenner und
einen Sack Rohlinge kaufen.
5:42 p.m.
Arnold Krille wrote:
2007/3/29, Folderol <folderol(a)ukfsn.org>rg>:
i think, recording at low level, you are kind of "loosing disc space".
lets say, if you are recording at 24bit, on low level the signal
information will take only 12 bit (example) and the rest of 12 bit will
be only empty data information.
don't think that one can repair that with some gain plugin or
normalization...
anyway, for metering, i just found a very nice appi called
Network-Editor, which is a part of the CLAM suite. NE can even do much
more stuff about signal processing, but there is a very nice meter
implemented too.
cheers,
doc
As many of you will know I principally use
ZynAddSubFX to generate most
of my sounds, so I can't really be sure if this is a Zyn problem or a
general one with software synths and mixing.
Very occasionally I get high amplitude spikes typically 6dB above the
'normal' peaks. These give a false idea of the signal level so that if
I'm not watchful I end up recording at a much lower level that I need
to.
Whats the problem with recording at lower volume? As long as there is
no da/ad involved you won't have any quality-loss.
But I prefer to work with hot-signals too. ;-)
Arnold
30 Mar
30 Mar
3:54 a.m.
Dragan Noveski wrote:
i think, recording at low level, you are kind of
"loosing disc space".
lets say, if you are recording at 24bit, on low level the signal
information will take only 12 bit (example) and the rest of 12 bit
will be only empty data information.
don't think that one can repair that with some gain plugin or
normalization...
Depends on the file format.
If using IEEE754 floating-point, your data should have been normalized
before it sent to disc - so you lose nothing (although if you're using a
flush-to-zero mode for FP arithmetic you may introduce crossover
distortion).
cheers
R
12:29 p.m.
2007/3/29, Dragan Noveski <perodog(a)gmx.net>et>:
Arnold Krille wrote:
Well, I was assuming you are recording with ardour, timemachine or
some other jack-based app. These use float internally and at least the
first two also save to disk in float-format. Which means that 32bit
are 32bit regardless if you are near to 0 or using the whole -1..1
range.
And as float-format means x.xxxEyy you won't loose any quality if the
. moves forth and back...
But as I said, I prefer hot levels too. And float-format also helps
for this as you don't get overflows in the normal audio-range which
means you can save files where amplitude goes beyond -1..1-range. You
should limit/scale that on playback though...
Arnold
--
visit http://www.arnoldarts.de/
---
Wenn man mit Raubkopien Bands wie Brosis oder Britney Spears wirklich
verhindern könnte, würde ich mir noch heute einen Stapel Brenner und
einen Sack Rohlinge kaufen.
2007/3/29, Folderol <folderol(a)ukfsn.org>rg>:
i think, recording at low level,
you are kind of "loosing disc space".
lets say, if you are recording at 24bit, on low level the signal
information will take only 12 bit (example) and the rest of 12 bit will
be only empty data information.
don't think that one can repair that with some gain plugin or
normalization... As many of you will know I principally use
ZynAddSubFX to generate most
of my sounds, so I can't really be sure if this is a Zyn problem or a
general one with software synths and mixing.
Very occasionally I get high amplitude spikes typically 6dB above the
'normal' peaks. These give a false idea of the signal level so that if
I'm not watchful I end up recording at a much lower level that I need
to.
Whats the problem with recording at lower volume? As long as there is
no da/ad involved you won't have any quality-loss.
But I prefer to work with hot-signals too. ;-)
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5 comments
5 participants
participants (5)
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Arnold Krille -
Dragan Noveski -
Folderol -
Lee Revell -
rob