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 Post subject: micrompx bad sound
PostPosted: Thu Dec 10, 2020 12:31 pm 

Joined: Thu Jan 31, 2013 12:04 am
Posts: 112
Hi, I am now playing with micrompx before purchasing the decoder. But I have the following. I have the pre emphasis on in stereo tool, but the sound on the transmitter sounds very bad. The sound is pumping. it seems that there is no processing. if i control the transmitter directly from the stereo tool pc with mpx signal then it sounds good. but if the raspberry with micrompx in between it sounds very different. Has anyone else been through this too and knows how to fix it.


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 Post subject: Re: micrompx bad sound
PostPosted: Thu Dec 10, 2020 2:36 pm 

Joined: Thu Jan 31, 2013 12:04 am
Posts: 112
it seems like I'm sending too hard. I'm using stereo tool as encoder with the setting "de emphazed version of FM output"


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 Post subject: Re: micrompx bad sound
PostPosted: Sat Dec 12, 2020 8:37 pm 

Joined: Thu Jan 31, 2013 12:04 am
Posts: 112
Looks like I found the problem. I took another preset and now it no longer pumps / limit the sound. Only strange that I never had this via the juli @ sound card, but now via micrompx.


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