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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: Papoola on August 15, 2007, 02:05:26 PM

Title: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: Papoola on August 15, 2007, 02:05:26 PM
Hello everybody. I am trying to clean the high level hiss on a live recording of an acoustic concert. I used edirol 09 and had to use high sensitivity setting and its internal mic's.
I am using samplitude and no idea if better to use the dehissing option in effects or alternatively noise reduction using a noise sample (when music is silent) of the same recording and deduct it from the recording.
What's the best to do? My nose says to sample the noise but I am doing my first attempts and no expertise on hands.
Thanks very much
take care all of you
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: Brian Skalinder on August 15, 2007, 02:13:02 PM
I'd try both options, with a variety of configurations, and listen to decide which you prefer.
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: guysonic on August 15, 2007, 02:17:34 PM
You might do better with a fuller featured 'Hiss Reduction' process like that found in Cool Edit Pro or more recent versions of Adobe Audition.  These allow sampling a short section of the recording where just the hiss (no music) is available to sample and use to 'ease out' enough (variable to your tastes) of the hiss to not cause the music to be degraded.
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: Papoola on August 15, 2007, 02:18:21 PM
Thanks Brian, you always help me. I appreciate. Cheers
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: Brian Skalinder on August 15, 2007, 02:23:46 PM
These allow sampling a short section of the recording where just the hiss (no music) is available to sample and use to 'ease out' enough (variable to your tastes) of the hiss to not cause the music to be degraded.

Samplitude (at least my SE v8 version) provides the same feature.
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: dorrcoq on August 15, 2007, 03:53:58 PM
These allow sampling a short section of the recording where just the hiss (no music) is available to sample and use to 'ease out' enough (variable to your tastes) of the hiss to not cause the music to be degraded.

Samplitude (at least my SE v8 version) provides the same feature.

Brian, I've seen you mention this program so many times, I jsut might have to break down and buy it. ;D
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: Brian Skalinder on August 15, 2007, 03:58:23 PM
Brian, I've seen you mention this program so many times, I jsut might have to break down and buy it. ;D

I'm relentless, aren't I?  :P  I just hate seeing people use expensive, cracked software when there's such a full-featured, affordable, legal alternative.
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: terrapinj on August 16, 2007, 04:29:57 PM
These allow sampling a short section of the recording where just the hiss (no music) is available to sample and use to 'ease out' enough (variable to your tastes) of the hiss to not cause the music to be degraded.

Samplitude (at least my SE v8 version) provides the same feature.

Brian, I've seen you mention this program so many times, I jsut might have to break down and buy it. ;D

i checked out the demo after seeing Brian and Teddy talking about it so much, some of the best $50 i've spent. fantastic program, didn't take too long to learn the basics and still many many many features i haven't explored. its quick and clean and i love the virtual files it creates so there is no concerns at all for damaging the original file. perfect for multitrack or just 2-channel stuff

looks like they may have SE v9 up now?
http://www.magix.com/us/samplitude-se/
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: guysonic on August 16, 2007, 04:48:11 PM
Brian, I've seen you mention this program so many times, I jsut might have to break down and buy it. ;D

I'm relentless, aren't I?  :P  I just hate seeing people use expensive, cracked software when there's such a full-featured, affordable, legal alternative.

Adobe Audition (only full version available) is just $299 with download, and is most complete.  Cost at least hundreds less than Samplitude full versions. 
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: Brian Skalinder on August 16, 2007, 04:58:38 PM
Adobe Audition (only full version available) is just $299 with download, and is most complete.  Cost at least hundreds less than Samplitude full versions.

Audition's a great tool, I used to use it in its CEP days.  For 1/6 the price, with a better / broader feature set for my purposes (aside from AA/CEP's very useful statistics analysis), I like Samplitude SE.  Full versions of SAM are way overkill for what we do.  Fortuntately, we have multiple reasonably affordable software packages that support our needs.  :)
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: ilduclo on August 16, 2007, 08:28:49 PM
recco against applying hiss reduction IMO, I think it reduces the highs of a LOT of instrumentation, for instance cymbals....

just my 2 cents

ildu
Title: Re: Acoustic recording with hiss. Shall I use dehissing or.......
Post by: guysonic on August 16, 2007, 10:18:43 PM
recco against applying hiss reduction IMO, I think it reduces the highs of a LOT of instrumentation, for instance cymbals....

just my 2 cents

ildu

The applied sample for hiss reduction in CEP and Adobe Audition displays the noise frequency SPECTRUM allowing the user to customize the frequency band(s) of applied noise reduction. 

So if desired, ONLY a small portion of the total spectrum can be used leaving the higher frequency portion relatively or completely untouched by the process, so sounds like cymbals can be fully preserved. 

Also the program allows real-time preview with and without the noise reduction settings that's being considered, so you should know by listening what is being gained and lost from the process before changing anything.