marcoc1712 wrote: > Could be one of these: > > a. Network -> try to increase initial delay (in settings, player > audio) and the squeezelite input/output buffer. > b. CPU -> same as above but also increase a bit the sox buffer and > toggle multithreading option.(in settings, advanced C-3PO). > c. on RPI, conflict in Network/USB usage. In that case you should slow > down the initial rush to fill the buffers, both increasing initial delay > AND limitating squeezelite output buffer size. > > As a last option, try to decrease upsampling rate. > > Please try to escribe a little bit your configuration: > Is Squeezelite running on the same machine or in a separate player? > Wired? What machine/Os is running Squeezelite and what LMS (if > different)?
Sorry it took so long to respond Marco, it took a while before i had time to try your suggestions. Thank you for your help. Interestingly enough, none of steps a - c solved the hiccup. But when i lowered the upsample rate, the problem disappeared. On playing with the settings more, i discovered that when i had 2 rates selected (352800 and 384000 -- my original setting) the hiccup occurred almost every time. But if i deselected one or the other, the problem disappeared again. So i left only 384000 selected. No hiccup. And in fact i noticed an immediate improvement in fidelity. The fidelity is quite excellent! My configuration has squeezelite running on an RPi3 with piCorePlayer 3.5.0Audio. Squeezelite is compiled per Soundcheck's advices ( https://soundcheck-audio.blogspot.de/2018/01/raspberry-pi-audio-engine-part-5.html ) using: export CFLAGS="-O3 -mcpu=cortex-a53 -mfpu=neon-fp-armv8 -fno-delayed-branch -fno-selective-scheduling2 -fno-whole-program -mfloat-abi=hard -fno-fast-math -pipe -fstack-protector --param=ssp-buffer-size=4 -DVISEXPORT -DLINKALL" I don't care about DSD. I'm only upsampling flac to pcm at the highest rate supported by the Piano/Kali DAC hat -- 384000 (at that rate the Piano/Kali bypasses any filtering). The idea being to minimize cpu load on the RPi3 and let the LMS server do all the heavy lifting. All my settings are toward minimum phase response, both in 3-CPO and Piano/Kali. I run LMS 7.9.1 on a seperate Windows 10 box. I replaced the LMS included flac.exe, sox.exe and faad.exe with the latest versions available at their respective websites. They are connected over WiFi 108.11n 5MHz. I turned off the RPi3's onboard WiFi and have an external WiFi dongle over the main USB port (also following soundcheck's advices in his blog) with a .5 meter extension cable to get it away from the RPi. Is this behavior with two sample rates selected to be expected? Any suggestions? Marvin ------------------------------------------------------------------------ Marvin Adeff's Profile: http://forums.slimdevices.com/member.php?userid=22204 View this thread: http://forums.slimdevices.com/showthread.php?t=105309 _______________________________________________ Squeezecenter mailing list Squeezecenter@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/squeezecenter
