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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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Computer Audio Asylum Music servers and other computer based digital audio technologies. |
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In Reply to: RE: DLNA implementations not bit perfect? posted by Dave_K on July 7, 2015 at 14:46:00:
The transport used for DLNA audio streaming is plain old http-get, which uses TCP and is bit perfect.
Correct but this doesn't guaranteed bit perfect audio as the server or the renderer might do transcoding.
When DLNA devices discover each other on the network, they exchange their properties (indeed pretty much like USB device enumeration).
If these properties don't match, the server is supposed to do the transcoding to a format the renderer does understand.
Part of the DLNA standard is that all should be able to handle raw PCM.
This is probably ones best bet.
Configure the server to output raw PCM only (must be done anyway to feed a DAC) and probably most renders will play it.
Of course it might be that a renderer don't support 24 bit or is limited in sample rate.
A nice tool is the Media Renderer Analyser by Whitebear
Anyway DLNA servers like Minim or Asset UPnP allows you to configure them.
With a lot of DLNA servers you are completely in the dark what they are doing and no way to configure them.
DLNA is a great concept, all kind of devices communicating with each other without any user interference needed. Say USB style connectivity over the network.
Practice is not as bad imho as some are suggesting.
A couple of years ago it was a disaster, indeed very bad implementations. Today it is reasonable mature.
My feeling is that for high quality audio over the network a AES67 style protocol like e.g. Ravenna is a better choice.
The Well Tempered Computer
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Follow Ups
- RE: DLNA implementations not bit perfect? - Roseval 07/8/1505:10:03 07/8/15 (3)
- AES67/Revenna - Tony Lauck 08:23:47 07/8/15 (2)
- Agreed - Dave_K 14:13:23 07/8/15 (0)
- RE: AES67/Revenna - Roseval 10:45:07 07/8/15 (0)
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