Stereo Tool
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Stereo Tool 7.71 BETA
https://forums.stereotool.com/viewtopic.php?t=6087		 Page 24 of 35
Author:  DJ-DOGGY [ Tue Jul 28, 2015 9:58 am ]
Post subject:  Re: Stereo Tool 7.71 BETA
Also "Composite clipper" phase issue still exists. With CC on - there is 90 degrees error. Without CC, no phase error (only that little pumping).
May be it`s related to the my last post for the little pumping signal.

Edit :
Link for video prove : http://www7.zippyshare.com/v/T6y0IdaX/file.html
When CC OFF , there is only that pumping i reported .
Author:  mpex2006km [ Tue Jul 28, 2015 10:39 am ]
Post subject:  Re: Stereo Tool 7.71 BETA
Nice most bugs are gone but I found another one. When ignore high freq is enabled the l-r portion of the signal is boosted. And some times feeding in a mono signal generates l-r spectrum which should not happen.
Author:  DJ-DOGGY [ Tue Jul 28, 2015 10:46 am ]
Post subject:  Re: Stereo Tool 7.71 BETA
Quote:
Nice most bugs are gone but I found another one. When ignore high freq is enabled the l-r portion of the signal is boosted. And some times feeding in a mono signal generates l-r spectrum which should not happen.

Yep, look at previous page - reported with picture.
Author:  mpex2006km [ Tue Jul 28, 2015 12:00 pm ]
Post subject:  Re: Stereo Tool 7.71 BETA
Quote:
Quote:
Nice most bugs are gone but I found another one. When ignore high freq is enabled the l-r portion of the signal is boosted. And some times feeding in a mono signal generates l-r spectrum which should not happen.

Yep, look at previous page - reported with picture.
Yes but the bug reported by you is different. Mine is the correct l-r signal boosted with both side-bands and centred at the 38khz sub-carrier
Author:  DJ-DOGGY [ Tue Jul 28, 2015 12:16 pm ]
Post subject:  Re: Stereo Tool 7.71 BETA
Quote:
Quote:
Quote:
Nice most bugs are gone but I found another one. When ignore high freq is enabled the l-r portion of the signal is boosted. And some times feeding in a mono signal generates l-r spectrum which should not happen.

Yep, look at previous page - reported with picture.
Yes but the bug reported by you is different. Mine is the correct l-r signal boosted with both side-bands and centred at the 38khz sub-carrier
Can you please make a shot , so i can see ?
Author:  hvz [ Tue Jul 28, 2015 12:30 pm ]
Post subject:  Re: Stereo Tool 7.71 BETA
Quote:
Also "Composite clipper" phase issue still exists. With CC on - there is 90 degrees error. Without CC, no phase error (only that little pumping).
May be it`s related to the my last post for the little pumping signal.

Edit :
Link for video prove : http://www7.zippyshare.com/v/T6y0IdaX/file.html
When CC OFF , there is only that pumping i reported .
This is not a 90 degrees error, but with composite clipping, the left and right channel are not always clipped identically. Fixing that would lower the audio level with no audible benefit (in fact, it would degrade the audio quality).

(Having said that, it might be a bit problematic when you perform stereo-to-5.1 upmixing....)
Author:  DJ-DOGGY [ Tue Jul 28, 2015 4:37 pm ]
Post subject:  Re: Stereo Tool 7.71 BETA
Quote:
Quote:
Also "Composite clipper" phase issue still exists. With CC on - there is 90 degrees error. Without CC, no phase error (only that little pumping).
May be it`s related to the my last post for the little pumping signal.

Edit :
Link for video prove : http://www7.zippyshare.com/v/T6y0IdaX/file.html
When CC OFF , there is only that pumping i reported .
This is not a 90 degrees error, but with composite clipping, the left and right channel are not always clipped identically. Fixing that would lower the audio level with no audible benefit (in fact, it would degrade the audio quality).

(Having said that, it might be a bit problematic when you perform stereo-to-5.1 upmixing....)
I don`t know .
I test it with the white noise and there is NO phase difference on the real output audio. Which is more strange and seems to be visualization bug or something ? It`s really strange because the FFT test program shows the same . MPX tool too .
Author:  hvz [ Tue Jul 28, 2015 8:31 pm ]
Post subject:  Re: Stereo Tool 7.71 BETA
As I said, there is a (nearly inaudible) difference between left and right, but it sounds good and fixing it will make the sound both softer and less good. So, there's no problem.
Author:  Wunjo [ Tue Jul 28, 2015 9:40 pm ]
Post subject:  Re: Stereo Tool 7.71 BETA
Quote:
Quote:
Hans,
In the input waveformmonitor is a strange behavior of the declipper red line
Beta 018, dsp
It doesn't work if you use Ignore Frequencies Above.
Turning Ignore Frequencies Above off, doesn't solve the strange behavior. Closing and reopen neither.

Attachments:
declipperRed.JPG
declipperRed.JPG [ 72.8 KiB | Viewed 5881 times ]
Author:  hvz [ Tue Jul 28, 2015 9:53 pm ]
Post subject:  Re: Stereo Tool 7.71 BETA
Yup, this isn't easy to fix, I think I'm going to have to turn the red display off in that mode. :( I'll try if I can find a better solution but it won't be easy.

Edit: Oops, I didn't read it properly. Hm... Will check!

Edit #2: Wow, this isn't new - it's also broken in released version 7.70!
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