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9.50: Stream sound problem
https://forums.stereotool.com/viewtopic.php?f=15&t=28511		 Page 1 of 1
Author:  Radiofreak1041 [ Sun Jun 07, 2020 2:18 am ]
Post subject:  9.50: Stream sound problem
Hi,

I experience a very ugly sounding stream when I enable the following settings:
Under Streaming Output the 'Normal/Stream signal' is set to 'De-emphasized version of FM output' and 'Encode Stereo' is turned on.
It sounds like a very low-bitrate compressed MP3. When I disable Encode Stereo in FM settings, this problem is gone.

Is Stereo Tool trying to send the high-frequency MPX signal through the OGG/MP3 stream? I don't hear much of a difference when RDS is toggled.

Thanks a lot,
Gabriel

Edit: This was due to the Limit CPU setting that was transferred wrongly to the new version. Now I've set it to Limitless, Follow Preset and it works fine again.
Author:  Dean B. [ Mon Jul 06, 2020 1:56 am ]
Post subject:  Re: 9.50: Stream sound problem
Thanks for this post. Perhaps the issue I just experienced is also related to this. After upgrading from 9.40 to 9.50 (Winamp DSP plugin) the FM output sounded very poor, much like you described but with a "chh..chh..chh.." sound along with the audio. I've never had a bad experience before when upgrading ST and had just tested 9.50 in our test environment without this issue. I ended up downgrading back to 9.40 and the audio sounded normal again.

I too discovered the CPU usage setting seemed to correct the issue, but not completely. I will try upgrading again, set the CPU to Limitless and see if that works in a second attempt.

Thanks
Author:  hvz [ Mon Jul 06, 2020 6:29 pm ]
Post subject:  Re: 9.50: Stream sound problem
Found it. Under Composite clipper, there are 2 settings: "Also lows" and "Also highs". Meaning that they also are composite clipped. (Which is actually not really that useful). Anyway, if you enable Also lows but *not* Also highs, which makes even less sense, it breaks. And, Also highs is turned off in lower CPU settings, Also lows was not.

I am changing the behavior now, such that Also lows automatically also does Also highs, and lower CPU modes turn both off.
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