Stereo Tool

Yes, please try again with BETA020

Nice.. but Input level should be so precize.. hope You'll do something for this.

Yes, I'll add something with a histogram of sample values, that should give me either a nicely spread image (no clipping) or a (very) sharp spike at the end. If I constantly get a sharp spike, the clipping level is at that spike, or - if it's not that sharp - a bit below it.

And a tilt display as well. And a display where I show which samples are considered to be clipped and which are not.

I can hear a difference in that wav file now, but ONLY if I move the assume tilted values to be clipped slider all the way down below 3100. The other slider really doesn't have much impact for me. Even with that, it has its' own distortion sound too, like perhaps sample quantization errors (might be using a totally wrong term, dunno)...or maybe it becoming "lossy" (hard to describe what I'm hearing).

Still not very impressive, to be honest...especially in light of the CPU consumption.

That is strange. It should sound horribly clipped, and after restoration, nearly perfectly restored (except for 'S' sounds) - as in the 2nd .WAV file in the post I linked.

How are you playing it?

Edit: Just tried again:
- Download 1st WAV file
- Open in Winamp, Stereo Tool DSP plugin loaded
- Open Declipper window, enable, set top slider to 8100.
--> Nearly perfect output. Without Declipper it sounds horrible.

Winamp, same way I am playing everything else. Same settings. Although I do have a few changes to the preset that I had uploaded, there's no significant difference with what I had uploaded with respect to this new change.

Bear in mind you're running on a newer processor, and specifically an Intel processor.

All-in-all, unless you make some significant improvement, this would not be a selling point for your product for me.

Ah, you're using other filters as well. Specifically, this filter does NOT (yet!) work properly if you combine it with a non-phase linear highpass filter.

What happens if you turn all other filters off (press RESET)?

(And, just to be sure: You DO get horrible distortion without this filter, right? Otherwise you might be using the wrong file.) The output should be just as different as the 2 files on that other page:
Original (BAD): http://www.stereotool.com/temp/original ... PPEDx4.wav
After declipping (GOOD): http://www.stereotool.com/temp/01_origi ... PPEDx4.wav

I did RTFM Hans... I specifically said that I completely disabled bandpass to test this. There is no highpass or lowpass involved at all.

Yes, the distortion is there due to overdriving, and I have the correct file. The only way I get an appreciable improvement is NOT with the first slider, but with the tilted values slider. I've tested with everything disabled too. It's the same way. The only way it works for me is with the titled values. It's still set for 0 degrees on the tilt.

Also, your nag message kicking in every 60 seconds pushes the dB value through the roof, so the filter disables when that kicks in, and I think it takes a few moments to stabilize under the significant CPU load, so between the lack of it doing much of anything good and the high cpu load, it's not impressive in the slightest.

You have beta020? i don't hear spot anymore and First slider working again.

Try this.. Play in Winamp and adjust PreAmp in winamp to match almost to the and of input meter of StereoTool.

I really don't have a clue what's wrong here. Just some questions to check:

1. If you check both the input level meters and the waveform display, do you see that the input signal is perfectly clipped to a completely constant level? If not, there's something BEFORE Stereo Tool (eg. Winamp equalizer settings etc.) that are doing something to the audio.

2. As Bojcha said: If you use BETA020 (registered!) you won't get the nag message anymore. And in that version the top slider should work. If you don't have a registered version you would indeed get the behavior that you're describing. (I still need to decide what to do with this filter, because I also want to sell it as a separate application).

No idea what else could be wrong...

Just to be clear: If everything works correctly, the output should be as in the 2nd file (nearly completely cleaned up) - in fact slightly better because the filter has been slightly improved since I uploaded that file.