All times are UTC+01:00




Post new topic  Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Mon May 16, 2016 2:16 pm 

Joined: Wed Jun 03, 2015 1:14 pm
Posts: 13
Hello all,

I'm playing a little bit with stereo tool, but I noticed the following:

I adjusted pilot level on 7,5kHz and rds on 4,5kHz without playing music, when I started to play music, both levels decreased, pilot to 2 a 3 kHz and rds to 1 a 2 kHz..
Also, when I adjusted both levels the same but with playing music, when there was silence afterwards, both levels go skyhigh.
I both tested with last beta and with the released 7.84.

When I look at other radio stations I can receive, it looks lite it is not a normal behaviour, it looks like there the pilot and rds level don't increase that mucht when there is silence, although I can not clearly test it because there is not much silence on normal radio stations :lol:

Does anyone know what can cause this behaviour?

I'm testing with:

Laptop(I7) with windows 10 and Realtek set to 192khz 16bits output
RVR PTX 30 LCD
And for measuring a Profline SFD tuner


Top
   
PostPosted: Mon May 16, 2016 2:32 pm 
Site Admin
User avatar

Joined: Mon Mar 17, 2008 1:40 am
Posts: 11185
Please check that in Windows any processing settings that the sound card has are DISABLED. That's the only explanation I can think of. I would expect that the sound is probably also pretty horrible now!


Top
   
PostPosted: Mon May 16, 2016 2:43 pm 

Joined: Wed Jun 03, 2015 1:14 pm
Posts: 13
Quote:
Please check that in Windows any processing settings that the sound card has are DISABLED. That's the only explanation I can think of. I would expect that the sound is probably also pretty horrible now!
All the processing settings in Windows are already disabled, sound is also not horrible if I set the pilot to 7,5kHz when playing music, but the pilot is also not stable but is fluctuating a lot.
I will see if an other pc that I have has a 192kHz capable output and test with that one to see if it will make a difference.


Top
   
PostPosted: Tue May 17, 2016 1:14 pm 

Joined: Fri Nov 23, 2012 4:34 pm
Posts: 211
Are you sure this effect is actually from the source rather than the receiver?
Maybe monitor the generated mpx directly to check?
Also, have you checked the input sensitivity / gain staging is ok before / at the transmitter?


Top
   
PostPosted: Thu May 19, 2016 7:05 pm 

Joined: Wed Jun 03, 2015 1:14 pm
Posts: 13
Seems like it is caused by my (new)laptop, on an other pc with E-mu 0404 usb sound card it's working fine.
It seems impossible to uninstall dell drivers and maxx audio and use the "bare" realtec drivers on my laptop with windows 10, everytime I try and reboot the original driver is reinstalled again, even though I disabled that option in windows.


Top
   
PostPosted: Sun May 22, 2016 8:06 am 

Joined: Sat Nov 20, 2010 6:27 pm
Posts: 9
I have had the same issue when i upgraded to Windows 10 on my aging "gaming" laptop - it would install a touchpad driver version that would kill scrolling, every restart. If you dig deep enough there is an option to disable automatic driver updating - if you have trouble locating it reply and i will point it out to you. I have disabled that 4 months ago and my touchpad driver has not changed by itself since.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 6 posts ] 

All times are UTC+01:00


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Limited