First impressions, vs Redmi Buds 5 Pro
ANC - Liberty 4 NC wins when it's working correctly. Somehow, a simple tap on the earbuds can trigger an audio shift after the contact is detected. Could this be due to the microphone interpreting the tap as an acoustic input? This is not the "funny sound" that the Redmi model makes to compensate when passing through vehicle bumps.
Transparency mode - Oh gosh L4NC has louder sound but at the same time the grey noise / noise floor is very high and audible the Redmi one is far from great but I'll still rate it above L4NC.
Sound quality - Not sure is it tuning or what, L4NC sounds quite a lot better but at the same time the sound changes due to what I've described above in ANC. What's worse is that this issue only affects the earbud you tap, resulting in a noticeably different sound profile between the two sides.
Mic Quality - Just outdoor with slightest wind - L4NC sounds robotic. In a room with just a ceiling fan on, the recipient on the other side complained that the audio was audible but crackling. I changed to the Redmi and the feedback was that the Redmi is much better. However, in my own experience, I don't get good calls with the Redmi either (many calls are not audible to the other party), so I think the L4NC is doing even worse haha.
Soundcore app has live translation feature, didn't see that in the ads or maybe I missed that. However, just testing it on my own, it only works for the first input, reading out the translated speech into the earpiece. It continues to recognize my voice when I speak, but it will not auto-play the translated version into the earpiece. Even manually tapping the Play button does nothing.