More > JRiver Media Center 19 for Windows

NEW: Improved memory playback

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Blaine78:
Immensely happy with the improved audio memory playback, and the other additional audio features in JR 19. Has benefited my setup greatly!! JRiver 19 upgrade purchase is a no-brainer.

kstuart:
I have posted about this feature on an audiophile-friendly forum, and I think it should improve JRiver's reputation in those circles...

audioriver:
Thanks a lot for this change, it does sound better on my system - not placebo! (hopefully)

rayooo:
I've now installed MC19 on a second system, my primary (music room) player, and once again, I'm amazed how well the new-style play from memory works.
Quite honestly, I see no downside whatsoever.

As a test, I have a 24/192 version of Yes/Tales from Topographic oceans.  The longest track on that album is 21:38 and it's around 800MB in size on disk. (FLAC)
When loaded and playing, I see the MC19 memory usage increase by approx a full GB.  (playing smaller sized files, the memory usage seems to track as one would expect...I guess)

What I'm having a hard time understanding is, how can this track possibly load and play in a half second.
in effect, "CD" resolution tracks play "instantly"..others take a bit longer.. I just expected this long track would be more noticeable, it's really not.
It's a wired GIG-E to NAS, and it's an i7-4770S CPU, so reasonably fast system, but I'm still a bit confused actually.

6233638:
Playback starts before the full track is loaded into memory. If you're seeing ~1GB of memory usage, the decoded audio is probably too big to fit into the amount of RAM MC19 allocates, as you are at the limit.

FLAC is really quick to decode though - it's only DSD tracks, and particularly DST compressed DSD tracks which seem to require a lot of CPU usage, taking as much as 20-30 seconds to fill the buffer on my system - which renders the computer unusable for ~20 seconds every time the track changes, and does not cache the full track any more, meaning that seeking can be impacted by disk I/O. This did not happen in MC18, because it always cached the entire file.

In practice, I see little difference between MC18 and MC19's behavior when playing CD quality tracks or high res PCM, other than increased memory usage (because it stores decoded audio rather than compressed audio) and a spike of CPU usage at the start of a track as it tries to fill the buffer as quickly as possible.

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