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Interpolation of Clipping and Bit-Rate Questions., Adobe Audition Help for a Noob.
Engelsstaub
post Jun 14 2012, 03:06
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I've been testing out the trial of Adobe Audition and have noticed that it is a bit more detailed in analyzing and manipulating peaks and "clips" than Audacity. My immediate example is a needle-drop of Krisiun's "The Great Execution." (One track--1st illustration below.) The CD and iTunes Matched AAC files are a complete mess in that most of the entire recording is clipped or squashed or whatever. (Same track--second illustration below.) (Krisiun is a Brazilian "death metal" band, so there's quite a bit of sound anyway!)

LP Rip @ 16/44.1


iTunes Matched AAC file



If you look at the needledrop in the first illustration you'll notice five places (bottom/right channel) where the sound clipped for a small fraction of a second. I was thinking of zooming in and doing a simple "auto heal" on those as I'm very pleased with the sound of this album when burned to Redbook CD-R. You'll also notice that, if you look at the bottom-right of both illustrations, that Audition is working at 16-bit for the vinyl rip (recorded at 16/44) and 32-bit float for the iTunes AAC file.

Some questions: will working on those few clipped samples and exporting the results at the same bit-rate reduce the quality of the original recording? Why does Audition indicate that it is working at 32-bit float for a 16/44 AAC file while it remains at 16-bit for the FLAC?




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Engelsstaub
post Jun 15 2012, 11:27
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An Audigy SE is out for me...I do my stuff on a MacBook Pro. The cartridge is indeed the stock one (Ortofon Red) that comes pre-fitted from Pro-Ject.

I believe may "downgrade" to the newer Debut III Carbon and sell this one before I upgrade the cartridge. You mentioned the speed and that's one of the reasons I got into Pro-Ject TTs; they offer decent upgradability. However I found out that the Speedbox doesn't work with the USB model, and that was part of my long-term strategy. I haven't noticed any speed problems thus far...but then again I never really looked into it either.

I've thought about buying a quartz-driven TT like a Technics. It would certainly make cleaning a record far easier tongue.gif

When I get the proper equipment (between the preamp and the MBP) I may begin recording at 24/88.2 and archiving that way. I have a SACD/DVD-A player in my stereo system but I never really listen to anything at that resolution. So I guess I'd just be dithering for playback copies anyway.

Digital is my preference over vinyl. Sometimes I find records (such as this one) that aren't badly clipped like the CDs and would rather listen to a digital copy of it. Some records are nothing more that the CD's master turned down a bit for vinyl but still clipped. So it's just a crapshoot for me. It's really more of a hobby to keep me collecting.


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Posts in this topic
- Engelsstaub   Interpolation of Clipping and Bit-Rate Questions.   Jun 14 2012, 03:06
- - saratoga   QUOTE (Engelsstaub @ Jun 13 2012, 22:06) ...   Jun 14 2012, 03:14
|- - Engelsstaub   QUOTE (saratoga @ Jun 13 2012, 21:14) ......   Jun 14 2012, 04:12
- - Ron Jones   To clarify, you're bringing 32-bit float files...   Jun 14 2012, 04:36
|- - Engelsstaub   QUOTE (Ron Jones @ Jun 13 2012, 22:36) To...   Jun 14 2012, 04:47
- - AndyH-ha   Working in 32 bit floating point, even if the orig...   Jun 14 2012, 05:53
|- - Engelsstaub   QUOTE (AndyH-ha @ Jun 13 2012, 23:53...   Jun 14 2012, 06:54
|- - Engelsstaub   These are the settings I used in converting the sa...   Jun 14 2012, 08:37
- - AndyH-ha   dither bit depth 0.5 bits p.d.f. shaped triangular...   Jun 14 2012, 11:49
|- - Engelsstaub   QUOTE (AndyH-ha @ Jun 14 2012, 05:49...   Jun 14 2012, 23:38
- - stephan_g   What does the recording side look like (hardware, ...   Jun 14 2012, 23:42
- - saratoga   Assuming he has a preamp that let's him set th...   Jun 14 2012, 23:49
- - Engelsstaub   In this instance the recording was done with a Pro...   Jun 14 2012, 23:52
- - stephan_g   I doubt it is any more "premium" than yo...   Jun 15 2012, 10:51
|- - saratoga   QUOTE (stephan_g @ Jun 15 2012, 05:51) Ma...   Jun 15 2012, 19:54
|- - stephan_g   QUOTE (stephan_g @ Jun 15 2012, 11:51) An...   Jun 18 2012, 21:08
|- - Kees de Visser   QUOTE (stephan_g @ Jun 18 2012, 22:08) He...   Jun 19 2012, 08:33
|- - Engelsstaub   QUOTE (Kees de Visser @ Jun 19 2012, 02:3...   Jun 19 2012, 12:18
|- - uart   QUOTE (Engelsstaub @ Jun 19 2012, 04:18) ...   Jun 19 2012, 13:01
- - Engelsstaub   An Audigy SE is out for me...I do my stuff on a Ma...   Jun 15 2012, 11:27
|- - stephan_g   QUOTE (Engelsstaub @ Jun 15 2012, 12:27) ...   Jun 15 2012, 17:06
|- - Engelsstaub   QUOTE (stephan_g @ Jun 15 2012, 11:06) .....   Jun 16 2012, 03:01
- - AndyH-ha   Are you sure about Audition doing something at 32 ...   Jun 16 2012, 08:07
|- - Engelsstaub   QUOTE (AndyH-ha @ Jun 16 2012, 02:07...   Jun 16 2012, 08:29
|- - Engelsstaub   QUOTE (AndyH-ha @ Jun 16 2012, 02:07...   Jun 18 2012, 10:42
- - AndyH-ha   The documentation is awkward. What is "best a...   Jun 18 2012, 13:38
- - AndyH-ha   The "32 bit" in their table seems to be ...   Jun 18 2012, 13:43
- - Engelsstaub   I guess it is too generic. I suppose I was just be...   Jun 18 2012, 14:00
- - Engelsstaub   I'm glad you got it figured out I'm not ...   Jun 19 2012, 05:04


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