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[sgrowan]

Hi,
I'm trying to puzzle out the relationships between these programs and if they will all work together. I've read one needs Whitebear to make JRiver and Squeezebox communicate and work together. I also know that JRiver and Dirac Live work and communicate together.
So my question is that if I use JRiver to play my music files and Dirac Live to process the room tuning settings on the fly will using Whitebear send the JRiver/Dirac modified files to play through LMS?
Or does Whitebear just allow JRiver to select the files which are then played back through LMS which means JRiver and Dirac Live have no influence on the sound quality?

Hope I said it all correctly.
Thanks,
Steven

[MrC]

Either Whitebear or LMS's DLNA plug-in can be used.  Whitebear supports gapless and native streaming of FLAC, whereas the LMS plug-in will stream via MP3.

I'm pretty sure MC will send a file URL to Whitebear, which then just forwards it to LMS which plays the file natively.  For certain file formats, Whitebear will proxy the stream as FLAC.

So I don't believe Dirac will be involved, but I'm not an expert here.

[AndrewFG]

I'm pretty sure MC will send a file URL to Whitebear, which then just forwards it to LMS which plays the file natively.

Yes this is correct. For audio types that LMS can play natively, Whitebear does indeed pass on the same url to LMS. Here Whitebear is simply acting as a middle man translator that obeys control action commands in "UPnP speak" from UPnP Control Points on one side, and forwards corresponding commands in "LMS speak" to LMS on the other side.

For certain file formats, Whitebear will proxy the stream as FLAC.

Indeed. LMS and Squeeze players cannot play PCM streams (even though they do use PCM internally). But PCM is the default "must support" audio format in the UPnP / DLNA world. So when a Control Point commands Whitebear to play a PCM stream, it does not just pass that url to LMS; instead it passes a proxy url to itself. And when LMS pulls from the proxy url, Whitebear pulls the PCM from the original url, transcodes it, and passes the resulting FLAC stream to LMS.

So I don't believe Dirac will be involved, but I'm not an expert here.

I have absolutely no idea what Dirac is, but/so I can definitely say it is not involved in any way. If Dirac is a black box that modifies whatever stream that MC is serving, then you can assume that whatever it may be doing will be transparently passed on to the player.

[sgrowan]

Hi, Dirac Live is a software package that provides on the fly room correction.


Dirac Live Room Correction Suite
- Stereo Version
* 2 channel (2 speakers) support
* Optimizes all sound from computer regardless media player
* Free support and updates
* 30 day money back guarantee
* License valid for 1 of customer's computers

More technical features
* Impulse response correction
* Frequency response correction
* Freely edit target curve, unlimited break points
* Automatic target functionality
* Shows average measurements
* Chair and sofa measurements
 Price: 389 Euro

                                                               



Dirac Live Room Correction Suite
- Full Version
* 8 channel (home theater etc.) support
* Optimizes all sound from computer regardless media player
* Free support and updates
* 30 day money back guarantee
* License valid for 2 of customer's computers

More technical features 
* Impulse response correction
* Frequency response correction
* Freely edit target curve, unlimited break points
* Automatic target functionality
* Shows all measurements
* Chair, sofa and auditorium measurements
 Price: 650 Euro


[MrC]

I don't believe the filters are available in DLNA.  You can select from:

   - Stereo downmix
   - Volume leveling
   - Sample rate (changes)

but there is no option to do DSP processing.

[AndrewFG]

I don't believe the filters are available in DLNA.  You can select from:

   - Stereo downmix
   - Volume leveling
   - Sample rate (changes)

but there is no option to do DSP processing.

In other words - for the avoidance of doubt - it is solely an MC issue whether it applies DSP to its UPnP output or not. In any case Whitebear will pass on to LMS (either directly or via its transcoding proxy) exactly whatever music stream that MC throws at it.