INTERACT FORUM
More => Old Versions => JRiver Media Center 25 for Mac => Topic started by: JimH on May 13, 2019, 06:26:55 am
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It's an Apple problem. Turning off Time Machine might help.
https://yabb.jriver.com/interact/index.php/topic,24031.msg828535.html#msg828535
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i have a 2014 iMac which does this, and it's completely related to time machine. when it backs up to my external drive, i get drop outs. When it isn't running a back up, everything works great.
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Also, under Options/Audio/Audio Devices/Device Settings select 1000 milleseconds under buffering. It doesn't completely fix the problem, but it does reduce the number and length of dropouts.
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my 2014 mac mini does this.
load decoded file into memory solved my problem.
Don't know why.
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I have a 6 month old Macbook pro and I also have a 2014 Mac -- I tried both with USB DAC and they both had dropouts. I have the buffering at 1000 and have fiddled with everything seemingly related to no avail. I'm not sure I can blame it on Time Machine........ Right now - I have TM off and will leave it off for a day or two as a test. I didn't check if the MacBook was backing up when I got the dropout, but 2018 MACs have other audio problems so I haven't repeated. But also, when I used the laptop, the library was still with the 2014 desktop Mac - so not a good test.
As a last ditch effort - I just bought a Raspberry Pi 4 (I have a Master license) and will attempt to use it as a client with the Mac as the server. I have the possibility of either USB/DAC output or HDMI with the Raspi. If the Desktop Mac controlling the library still is the problem, I can set up an external USB drive with the Raspi, I also have a 8 year old Windows PC (mini Dell) in a box somewhere - I could dedicate it to MC.
But, for me, the MAC is the best solution (different computers will complicate my world) if I can get it to reliably playback (but all in all, I've tired of serious troubleshooting with this one). This seems a problem worth escalating to Apple tech support if TM related. Does JRiver have a contact at Apple for this sort of problem?
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This seems a problem worth escalating to Apple tech support if TM related. Does JRiver have a contact at Apple for this sort of problem?
We don't. You could use their forum and link to ours.
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It dawned on me today that I haven't heard a dropout in a long time.
It used to be pretty frequent and annoying.
I still use Time Machine and I have Catalina and the latest MC. I didn't change any related MC settings since I essentially gave up on trying to fix dropouts.
I also kept a copy of the previous MAC OS (Mohave) with an older MC on a bootable hard drive......I was thinking of testing if dropouts are still on the older versions and if it was a Catalina or MC issue but not entirely sure if I want to beat a dead horse.
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Dear guys,
the German computer magazine Mac & I (from Heise Verlag) reported on 08.March 2019 the following statemet regarding the apple mac 2018 audio failure (unfortunately in German):
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8.03.2019 09:43 Uhr
Mac & i
Apple hat Audioprobleme aktueller Macs im Zusammenspiel mit USB-2-Audiointerfaces in der neuesten Beta-Version von macOS Mojave beseitigt, wie ausgiebige Tests der Mac & i-Redaktion nahelegen. Der auf Audio-Hardware spezialisierte Hersteller RME bestätigte die Vermutung gegenüber Mac & i am Wochenende: Auch dort könne man unter macOS 10.14.4 Beta 5 keine Störungen mehr nachweisen. RME hatte zuvor gewarnt, es gebe im Moment keinen Weg, um einen Mac mini 2018 ohne Audio-Fehler bei der Musikproduktion einzusetzen – solange USB 2 zum Einsatz kommt.
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Translated to English (shortend): Apple reported that problems with core audio interface distortion and usb-2 ports has been fixed. This was also committed also by RME (company specialized on Audio-HW). They tested with version macOS 10.14.4 Beta5 and could no longer detect the failure.
I myself can also not detect any dropouts any longer. Using Mac Mini 2018 with Mojave OSX V. 10.14.6. Even if time machine was up and running I could not detect any dropouts any longer.
For sure this is no guaranty - but maybe worth to test again if having trouble before
BR
Joachim
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Really good news. Interesting there is no USA announcement.