[BUG] High latency, even with USB tethering about audio-share HOT 5 CLOSED

Pinging each other from each end, the average latency is around 0.5ms (half a milisecond).

How do you ping phone? I test the ping delay is about 2~5ms.

Do delay of via WIFI and USB tethering both reach 350ms?

from audio-share.

How do you ping phone? I test the ping delay is about 2~5ms.

I do get the local IP address of the phone from the server logs when the phone is connected. Additionally it can also be gathered using termux with the ifconfig command.

On PC I use the ping command. It doesn't show sub 1ms values in Windows but it does on Linux (so on the phone)

Do delay of via WIFI and USB tethering both reach 350ms?

Here's a table:

These values are pretty consistent even over long periods
The measurements in audio delay is pretty loose since I don't have a reliable method other than using the video I referenced. However even assuming a worst case 100ms error margin, the latency over USB is quite high.

from audio-share.

I test my delay is less than 50ms. The PCM data is transterred via UDP, so the network delay has already been shortened. Your network seems like normal, so we can exclude this factor.

There is no decompression or any other complicated jobs. It's just memory copy. The delay may be caused by the CPU performance and RAM R/W delay. You can use another PC or phone to test. I don't have better idea to figure it out.

from audio-share.

Your problem may be same as #14. You can use wav_recorder.exe to test if exists delay.
wav_recorder.zip
#14 (comment)

from audio-share.

Fix at #24.

from audio-share.