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More => Old Versions => Media Center 17 => Topic started by: satbox on December 10, 2011, 10:30:40 am

Title: Issue with the "Playing files from memory" option
Post by: satbox on December 10, 2011, 10:30:40 am: Hello,

I use JRiver 17.0.46 with the following audio parameters:
-Output mode: WASAPI - Event style
-Prebuffering: 20 seconds
-Play files from memory instead of disk

Playback computer running Win7 64 with 4GB memory
Files are stored on a NAS

When I try to play files from memory (24bit-96kHz FLAC with a size < 256MB), JRiver displays the message "Buffering...", then, when buffering is done (100%), it starts to play the file but 5-6sec later, it restart the buffering process and then plays the file until the end.

It seems that it execute the buffering process twice ? Please, can you help me?

Thank you!
Title: Re: Issue with the "Playing files from memory" option
Post by: Matt on December 10, 2011, 10:38:23 am: I would just turn off playing from memory. There's no reason to use lumpy I/O instead of smooth I/O with a NAS.
Title: Re: Issue with the "Playing files from memory" option
Post by: satbox on December 10, 2011, 10:44:37 am: Hello Matt,

Thank you for your answer. What do you mean by "There's no reason to use lumpy I/O instead of smooth I/O with a NAS"? I don't understand...
Title: Re: Issue with the "Playing files from memory" option
Post by: Audioseduction on December 10, 2011, 10:06:19 pm: From my experience memory playback works great with either internal HD or external HD connected via USB/Firewire. I tried using memory playback on my NAS and it was a no go. I would just do what Matt recommands and disable memory playback and let the streaming process do its job by feeding data in a controled manner. I myself use a external 3TB USB 3 HD for my music file storage and utilize the memory playback function with Great success!
Title: Re: Issue with the "Playing files from memory" option
Post by: Vincent Kars on December 11, 2011, 04:44:21 am: Memory playback is about loading the song in memory so no access to the local HD during playback.
If you play from a NAS there is no access from the local HD by JRiver as all data fetched from the NAS is already stored in memory.
Title: Re: Issue with the "Playing files from memory" option
Post by: larryrup on June 26, 2013, 02:00:33 pm: So is this set up NAS or should memory play back be used:

MC running on PC 1 local, MC file store is a shared drive on PC2.

Thanks

Larry
Title: Re: Issue with the "Playing files from memory" option
Post by: Vincent Kars on June 26, 2013, 02:05:04 pm: Same as using a NAS (file sharing)
Title: Re: Issue with the "Playing files from memory" option
Post by: larryrup on June 26, 2013, 02:14:54 pm: Thanks very much....another change to make.

Let's get more controversial :) If a track is being played from memory, do limiting resources and jobs running on the PC really matter? I've tried some of this (like Fidelizer, using MC as a server) and at first I thought a noticeable improvement....now not so sure.

Larry
Title: Re: Issue with the "Playing files from memory" option
Post by: bplexico on August 06, 2013, 12:43:36 pm: Quote from: Matt on December 10, 2011, 10:38:23 am
I would just turn off playing from memory. There's no reason to use lumpy I/O instead of smooth I/O with a NAS.

Matt - if you happen to see this message, I have a follow up query for you.

I have a Mac Mini with 16Gbs of memory using the most current version of MC on the Mac along with a Synology 1812+ NAS which stores all my music files and is presented to my mac as a network volume.

I had previously had memory play enabled in MC but have disabled it based on your recommendation. However if possible, could you explain the difference between lumpy and smooth I/O because it is not quite clear to me why having memory play disabled is a better option when reading from a NAS.

Thanks.

Barr