[PROBLEM] Latency reduction when using audio/video player as input

[jiemdev]

Forgot to mention that I tried to reduce the latency in alsa input conf.
My .conf file is currently like this (already tuned period and buffer, for very small latency reduction, still between 1.5s and 2s):

pcm_slave.komplete {
pcm "hw:1,0,0"
format S32_LE
channels 6
rate 48000
period_time 0
period_size 256
buffer_time 0
buffer_size 512
}

pcm.spdifinput {
type dsnoop
ipc_key 12375
slave komplete
bindings.0 4
bindings.1 5
}