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Frage an die Tonprofis - Absenken des Levels

Question s.die Tonprofis - lowering the levels



Frage von kiteschlampe:
April 2008

Hi, have a problem and hope the solution, with your help.

I take something on, it is not studio quality, which gives the project from the budget is not her.

Now is that something basic is noise and I would like to eliminate this.

Various Einstallungen both Adobe Audacity as synonymous is not satisfactory, the synonymous the amplitude of the signal is affected.

Please Picture:



What I want the whole signal is lowered so that the background noise on the zero line is placed and the amplitude remains.

Please see Picture:



Blue is the newly-placed signal, knows the origin signal.

Is something possible?

Thanks for the replies.

Gruss Chris



Antwort von Quadruplex:

On the Audacity page for explanations


Antwort von miku:

Should Sowas with audio with an appropriate filter function (static offset). The question is how this offset is entered (incorrect phantom?). Furthermore, it is questionable whether this volume somewhat s.der of the noise changes. The constant offset defines only a constant preload to the signal - it may be distorted, but otherwise should have little impact. (If it were not for coils and capacitors in between, so to speak, would the speaker diaphragm is always an inch from the central position deflected remain synonymous with complete silence.)








Antwort von miku:

There is no audio signal without noise and through the entire frequency range. As a subjectively unpleasant noise is, however, mainly in the higher frequencies and synonymous exercised only if the signal / noise separation is too low.
I know of no noise filter (maybe there is but) which are not synonymous while the rest, especially the high frequency range of influence.
It is ultimately my only question to find a compromise in which the sound of the more acceptable and useful at the same time interfering with the normal volume is not too uncomfortable striking



Antwort von david2:

What is here because (some) Gelabert? This has nothing to do with noise. That is simply the DC offset of the right must be set!



Antwort von Quadruplex:

"david2" wrote:
What is here because (some) Gelabert? This has nothing to do with noise.

The questioner wrote of Noise.
"david2" wrote:
That is simply the DC offset of the right must be set!

Seems to me a detailed look at the screen shots as synonymous - but that is a rather cosmetic problem. Audacity appears not to be set aside. The Nero Burning ROM belonging Wave Editor offers it as "improvement" to. Whether it's the stuff can Magix - no idea. Adult audio editors such as WaveLab, Samplitude, etc. may have to's.



Antwort von beiti:

Quote:
Audacity appears not to be set aside.
If the offset is not gone, if it could be "normalizing" the box for "remove DC portion" ankreuzt?



Antwort von Quadruplex:

"beiti" wrote:
Quote:
Audacity appears not to be set aside.
If the offset is not gone, if it could be "normalizing" the box for "remove DC portion" ankreuzt?

Should be the case - so far I had not through the menu structure and the German gewühlt Manual knows the concept of DC offset is not ...



Antwort von miku:

There is a freeware for DC offset, Google would need to be found.



Antwort von jbl:

"Quadruplex" wrote:
but that is a rather cosmetic problem.


Schmarrn. The signal can not be dynamically gepegelt as a correct signal and you'll get fat when cutting hard crackling (for example, if the playback is stopped ... no preference whether to edit or consumers).



Antwort von kiteschlampe:

I have it resolved, that the noise (probably from Cheap Micro product) in 3 steps can remove:

As described Normalize, DC share and simultaneously remove Normalize to -0.5 db.

Then the Flatline marked and the noise profile.

And finally the whole sound clip marks and removes the noise with 20dB attenuation and smoothing 10Hz brought the best results.

This file was a language text, with music, these values vary.

Thanks for the help, without your input I would have failed.

Gruss Chris




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