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[guitarhead]

I have been using my Chord Mojo with JRiver MC for about 2 years on a laptop running windows 7 & a desktop running windows 10 with no problems. I recently bought a brand new HP Pavilion and having trouble getting the mojo to work right with JRiver MC. DSD files will not play at all & hirez flac files sound glitchy. Standard cd flac rips seem to play ok. When I use my laptop everything works perfect. I'm using MC24 on both machines. I don't know what I'm doing wrong. Any advice would be much appreciated.

[Logic800]

A couple of possibilities:

1. Have you installed the Chord driver for the Mojo, available from their website? And/or,

2. Have you selected the Mojo as the default 'Audio Device'?  Chord recommends Kernel Streaming as the best output option (can be found under 'More').

Hope that helps.

[guitarhead]

I have installed the driver. I have been using the chord ASIO option on my other pc's with success. I have not tried Kernel Streaming. Can you play DSD with Kernel streaming? I'll give it a shot. Thank you for the suggestions.

[guitarhead]

Unfortunately Kernel Streaming does not work either.

[Logic800]

Sorry, that's the limit of my knowledge.

[guitarhead]

Thanks for your help.

[Awesome Donkey]

Don't think kernel streaming supports DSD playback (either native DSD or DoP). DSD bitstreaming works with ASIO (native DSD and DoP) and WASAPI (DoP) on Windows. Also CoreAudio on macOS (DoP), ALSA on Linux (native DSD and DoP) and of course with DLNA via DoPE for the devices that support it.

I'm kinda surprised Chord recommends using kernel streaming over WASAPI or ASIO since kernel streaming is a XP-era standard that, as far as I know, was succeeded by WASAPI starting with Windows Vista. And I wouldn't be surprised if Microsoft drops kernel streaming in a future Windows 10 update.

https://wiki.jriver.com/index.php/DSD

[Logic800]

Recently I asked this of Chord:

"Hi, just started listening to my new Qutest, sounds good. With the Mojo you recommend using Kernel Streaming as the best sounding output format, is this the case also for the Qutest? I'm using JRiver MC24, with the Chord driver installed on Windows 10 Pro."

And got this reply:

"Yes, we feel this advice is relevant for all of our DACs."

In MC24 under 'Audio Device' I have 'Chord Electronics Ltd. Streaming [Kernel Streaming]' selected, which I guess is part of their driver package.

[Awesome Donkey]

Yeah, that doesn't make sense to me. The only use case I'd recommend using kernel streaming is Windows XP (which honestly nobody should be using anymore outside of a virtual machine), otherwise I'd recommend WASAPI or ASIO if you have a driver available. Kernel streaming in modern versions of Windows is (what I'd consider) depreciated at best with WASAPI being considered its 'successor' since Windows Vista. But you definitely won't get DSD bitstreaming working with kernel streaming, that's for sure.

In fact, unless you need an ASIO driver provided by the manufacturer, you don't actually need to install drivers on Windows 10 anymore since the Windows 10 Creator's Update. Reason being Windows finally has native support for USB Audio Class 2.0 which means you can get sample rates above 96 kHz without needing to install a driver. And it'll be bit-perfect when using WASAPI exclusive and it should work with DSD bitstreaming via DoP.

It just puzzles me that they'd recommend kernel streaming over WASAPI - it's just something I wouldn't recommend using on modern Windows. Same with using ASIO4All, which actually isn't ASIO at all as it's a wrapper for kernel streaming, so I wouldn't ever recommend using it either.

It's also worth mentioning that JRiver doesn't recommend using kernel streaming either (except on Windows XP).