Further to investigations over the last two/three weeks, I have found that increasing the Radio's ALSA buffer size to 30 milliseconds is proving to be an effective work-around to the problem. Since making this change, I have had no instances of "Bass drop-out" in circumstances where I would hitherto have had many. And I have not encountered any noticeable adverse effects on the Radio's performance as a result of the change.
For anyone else who may wish to try this, I have made an applet available, named *ALSA buffer size*, that allows for the buffer size to be changed easily, using the standard user interface. I have been using it on my Squeezebox Radios, which run the current software version 7.7.3 r16676. The applet is targeted at Radios, and will not install on other Squeezeplay based players. I would expect the applet to work identically on earlier versions of the software, and on the UE Smart Radio version as well, because the software is substantially identical in the relevant area. But I don't have those devices available to me and can't explicitly test them. Feedback welcome. INSTALLATION USING LMS Users of Logitech Media Server (LMS) can install the applet using the _Applet_Installer_ menu, which is found in the Radio's _Advanced_Settings_ menu. To do that, add the following URL to the list of _Additional_repositories_ at the bottom of the LMS _Plugins_ settings page. This will make the applet available to the Radio. Make sure that that the _Recommended_Applets_Only_ option at the bottom of the Applet Installer menu is _not_ selected. Repository URL: -https://sourceforge.net/projects/mrw-applets/files/repo.xml/download- I have found that occasionally the applet does not show up in the offered list. In this case, simply back out of the menu and retry. I believe that LMS (or sourceforge) is occasionally a bit tardy in assembling the list of applets. Once installed, the applet will show up as a menu item under the _Advanced_Settings_ menu. If you wish to remove the applet, reset the buffer size to its default setting before removal. MANUAL INSTALLATION The applet may also be installed manually. Enable _Remote_Login_ on your radio, note the password, and log in using ssh or your tool of choice. On a Linux or macOS system this would be: Code: -------------------- ssh -l root your_radio -------------------- Then execute the following commands on the Radio: Code: -------------------- wget http://mrw-applets.s3-website-us-east-1.amazonaws.com/AlsaBufferSize-v1.01.zip mkdir -p /etc/squeezeplay/userpath/applets/AlsaBufferSize unzip AlsaBufferSize-v1.01.zip -d /etc/squeezeplay/userpath/applets/AlsaBufferSize rm AlsaBufferSize-v1.01.zip exit -------------------- The expected dialogue is as follows: Code: -------------------- # wget http://mrw-applets.s3-website-us-east-1.amazonaws.com/AlsaBufferSize-v1.01.zip Connecting to mrw-applets.s3-website-us-east-1.amazonaws.com (52.216.168.26:80) AlsaBufferSize-v1.01 100% |************************************************************************************************************************************************************************************| 7415 00:00:00 ETA # mkdir -p /etc/squeezeplay/userpath/applets/AlsaBufferSize # unzip AlsaBufferSize-v1.01.zip -d /etc/squeezeplay/userpath/applets/AlsaBufferSize Archive: AlsaBufferSize-v1.01.zip inflating: AlsaBufferSizeApplet.lua inflating: AlsaBufferSizeMeta.lua inflating: loadPriority.lua inflating: strings.txt # exit -------------------- Now restart your Radio, and look for the menu item under Advanced Settings. And, remember to disable _Remote_Login_. To remove the applet, reset the buffer size to its default setting, log in to your radio, and: Code: -------------------- rm -r /etc/squeezeplay/userpath/applets/AlsaBufferSize exit -------------------- Any comments or feedback welcome. In particular, confirmation that the installation works on a UE Radio would be welcome. ------------------------------------------------------------------------ mrw's Profile: http://forums.slimdevices.com/member.php?userid=38299 View this thread: http://forums.slimdevices.com/showthread.php?t=104141 _______________________________________________ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
