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PostPosted: Sun Sep 06, 2020 11:32 am 

Joined: Fri Dec 12, 2014 1:45 pm
Posts: 6
Location: Belgium
Disabling "Encode Stereo" in I/O -> FM Transmitter disables composite clipping.
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This isn't supposed to happen, as composite clipping significantly impacts loudness, even in mono.
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An easy way to hear the difference is to enable stereo, but reduce the stereo pilot to 0% (effectively disabling stereo but still broadcasting the L-R signal).
Then switch the composite clipper on/off and listen to the difference.


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PostPosted: Mon Sep 14, 2020 11:58 am 

Joined: Sun Jan 04, 2009 2:54 pm
Posts: 161
Location: Finland
You cant use composite clipper unless there is an stereo pilot and a L-R section. The whole point of composite clipper is to cram more audio to the blank spots left by 19kHz, 38kHz (and 57kHz) when they travel to zero.


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PostPosted: Mon Sep 14, 2020 12:40 pm 
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Joined: Tue Sep 15, 2015 12:22 pm
Posts: 318
You set "Extra composite clipper drive" to +2dB. By enabling composite clipper you're basically toggling 2dB extra drive on and off.

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Software Engineer @ Thimeo Audio Technology B.V.


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PostPosted: Mon Sep 14, 2020 1:06 pm 

Joined: Sun Jan 04, 2009 2:54 pm
Posts: 161
Location: Finland
Quote:
This isn't supposed to happen, as composite clipping significantly impacts loudness, even in mono.
When inspecting the MPX created by Stereo Tool with a spectrum analyzer [while composite clipper is on], you can see that when you are playing out a mono signal through Stereo Tool, the L-R signal is bouncing a bit sometimes with the signal. It happens because that is the extra punch which is created by the clipper, even for the mono signal.


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PostPosted: Mon Sep 14, 2020 8:19 pm 

Joined: Wed Jun 03, 2015 7:03 pm
Posts: 83
That's mean that even mono signals are more louder with "composite clipper" on? :o


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