linuxaudio.org

2007/3/29, Dragan Noveski :

quoted text
> Arnold Krille wrote:

> > 2007/3/29, Folderol :

> >> 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. ;-)

> 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...

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/

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