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In Reply to: RE: iZotope most 'transparent'? posted by fmak on September 02, 2014 at 05:26:00
Here is the interface in RX3 which, to my eyes, is clear and easy to use.
I made a simple statement that iZotope is ONE of the most sonically transparent. Seriously, I'm not quite sure why you feel the need for such an aggressive response to what I believe is a balanced, factually correct statement.
For your "analysis" to be valid you should clarify what settings you used in the comparison between the different SRC packages and whether all had the same attenuation in the stopband, where you set the transition band to begin and whether you set a minimum or linear phase characteristic. These factors plus the filter steepness will all affect the sound. Even the best algorithm can be made to sound bad if you don't know what you are doing...
You should also clarify what your replay equipment was. PC speakers don't count....
This link enables a comparison to be made.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
Follow Ups:
When someone says that iZotope is the most transparent in response to what I said I found amongst Audition, Wavelab and RX2, I would have expected subjective/objective comments based on actual experience, rather than relying on the web link which had found that there was little to choose between the Audition and iZotope srcs.
Your comments on settings reflect precisely what I have said. In the case of iZotope, please explain precisely what 200 filter slope and 0.99 cutoff shift mean in relation to transparency? The iZotope 2 manual is briefest on settings and explains little.
My comments on redability refers to iZotope 2 RX Adv. On my 28 in 1920x1200 display, I get a dim box of perhaps 15cm by 10 cm which is not particularly readable even when the interface brightness is set to 100%.
The box is NOT scaleable.
Your picture looks to me like relatively low resolution screen capture, perhaps magnified on your display. Please confirm or deny. As I said, I am not about to reset all my screen parameters, carefully calibrated for video, to suit the quirks of one program out of many others that display normally.
To me iZotope 2 has the worst display clarity of all other professional programs I have seen and the briefest of description on what it does. When I find that it doesn't sound any better than others, I am not prepared to use or spend money to upgrade it.
From your previous posts, I have concluded that you never figured out how to use the iZotope SRC. Without exploring the full range of its conversion settings, it is not possible to reach a valid conclusion as to transparency. Indeed, the nature of the 44.1 kHz PCM format is that conversions to/from this format will not and can not be transparent regardless of software. The controls are there to allow the user to make appropriate tradeoffs according to artistic criteria. If one is upsampling previously downsampled recordings the best settings will depend on the settings used (or converter used) to make the 44 kHz recording as well as the particular type of music and style of recording. If one wants to know the exact technical characteristics of specific settings, there are easily obtained by running the same type of tests that one sees on the infinitewave site. One can run any other kind of test as well, if one is so inclined. I believe all of the plots provided on the web site use software that comes with iZotope RX.
The image at the top of this post is a screen shot of iZotope RX. As you can see from the magnifying glass, the screen image has been blown up by a factor of 2 for the benefit of the visually impaired. (I would assume that any visually challengeduser of Windows would be aware of this built in operating system feature.)
Note that the dB scale on the right hand side is a slider and allows examination of attenuation at lower dB levels. With the offset and steepness settings shown, if one slides the scale down on will see that aliasing begins at 22.05 kHz at a maximum level of -60 dB.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
This is precisely what I said. At least I have used (and done all that you said re sliders etc) on 3 software suites and compared results with a dCS high end upsampler in coming to my conclusions. You have done none, except for using Sound Forge in some capacity, and your hardware is bog standard.As for using the magnifier, why should I pay over the odds for a piece of software which requires me to muck about on my desktop when I expect a high quality display for a high price?
It seems to me that you are just inventing scenarios to criticise posts that you have not read, understood, or comprehended properly. .
Edits: 09/04/14
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