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More => Old Versions => JRiver Media Center 20 for Windows => Topic started by: retro on October 30, 2014, 03:24:30 pm

Title: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: retro on October 30, 2014, 03:24:30 pm: Hello,

I have a strange problem I've never seen anybody has had before?

My MC is mostly set to 5.1 output.
I have no problems with upmixing 2-ch flac or ape to 5.1, it works as it should. Likewise with ac3 or dts soundtracks.

But when I play 5.1 sacd-rips or 5.1-flac, the file plays with all channels active the first few seconds, but then randomly drops channels until theres only main L+R playing..?!?
Sometimes the surrounds go silent first, then the center and sub. Or any combination of those! They drop to zero on the Lynx output mixer..!!

What about that one folks.. :)..??
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: 6233638 on October 30, 2014, 09:52:14 pm: Try disabling the "detect stereo sources in surround (pseudo-surround)" option in DSP Studio.
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: retro on October 31, 2014, 06:05:00 am: Quote from: 6233638 on October 30, 2014, 09:52:14 pm
Try disabling the "detect stereo sources in surround (pseudo-surround)" option in DSP Studio.

No, I'm afraid that didn't help.
Other ideas?
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: Hendrik on October 31, 2014, 07:44:20 am: Did you look at the analyzer in the DSP Studio when it happens? Or MCs audio path?
The Audio Path will tell you what it does, and the analyzer will show you which audio it sends out, so we could see if MC is still sending 5.1, and it disappears after, or MC isn't even sending 5.1 anymore.
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: retro on October 31, 2014, 07:57:43 am: Analyzer and audio-path shows all channels active at all times.
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: retro on November 01, 2014, 02:02:33 pm: Ok, was to quick on the keyboard, the problem also exist with last MC19.. :(

However, foobar with the sacd-plugin plays these 5.1 sacd's and flac's perfectly, no dropped channels.

Am I the only one with this problem..?
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: retro on November 03, 2014, 09:20:18 am: Tried playing with Lynx Asio instead of Dirac Processor as output device, but no difference.
And I repeat, foobar works.. ;)

Can anyone help me..?
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: retro on November 05, 2014, 11:22:10 am: Thanks to hendrik and 6233638, but unfortunately that didn't solve the problem.

Matt or someone else, any help with this please..? My logs are in the first post.
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: Matt on November 05, 2014, 11:26:08 am: Quote from: retro on November 05, 2014, 11:22:10 am
Matt or someone else, any help with this please..? My logs are in the first post.

This is really a mystery.

If you play locally instead of from Library Server, does it change anything? I ask because I saw that it's using Library Server in the log.
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: retro on November 06, 2014, 05:26:45 am: Imported an SACD ISO to local hardrive but unfortunately no, still drops channels...
Title: Re: From 5.1 to 2.0..dropping channels while playing..?!?
Post by: Matt on November 06, 2014, 08:27:53 am: Can you try a second sound card as a test? The only thing I can think is that the audio device itself starts to drop the channels.