ExoPlayer AudioTrack Stuttering
I have seen similar behavior couple times and it was related to lowering cpu frequency for power saving. If you have rooted device you can try going to:
cd /sys/devices/system/cpu/And for all cpu's you see (replace cpuX by cpu0, cpu1 and etc) do:
echo 1 > cpuX/onlineecho performance > cpuX/cpufreq/scaling_governorIf this is the case then unfortunately I don't think you can easily workaround this problem.