06-27-2025, 12:01 PM
(06-27-2025, 08:58 AM)Hamimoode Wrote: Short information: 6 Raspberry pi 4 wit HATS: 4 DAC+, 1 DAC+ ADC pro and 1 HAT with Amplifier and two low price boxes with good sound are working good since yesterday. Now I will try to set up the multi room ability with one Raspberry pi 3 without any HAT.
Be sure to read the Multiroom Setup Guide (link on Multiroom Config screen) particularly about networking. There is no clock sync between Sender and Receiver in this multiroom implementation which means the network needs to deliver the sent audio packets to the Receivers within a few milliseconds of one another in order for there to be to-the-ear sync.
You can test the overall network latency by running a ping test from the sender to each receiver and then examining the ping stats for avg rtt and mdev (standard deviation).
Below is an example showing two 5 minute ping tests from Sender host trx to Receiver hosts pb1 and sig. Note the "avg" and "mdev" figures are within ~1ms of each other.
Code:
^C
--- pb1.home ping statistics ---
305 packets transmitted, 304 received, 0.327869% packet loss, time 304404ms
rtt min/avg/max/mdev = 1.151/11.903/76.518/14.577 ms
^C
--- sig.home ping statistics ---
299 packets transmitted, 299 received, 0% packet loss, time 298400ms
rtt min/avg/max/mdev = 1.154/12.325/121.095/15.877 ms