AirPods libreated from Apple's ecosystem

A cool project, when you want to use AirPods outside of Apples ecosystem. Sadly, you have to use a rooted android device with a small patch due to a bug in the Android Bluetooth implementation. https://issuetracker.google.com/issues/371713238

Any idea how much latency there is between the beginning of audio being played in an app, and it then coming out the headset?

I use wired headphones to study with Anki (AnkiDroid) because I've found most (inexpensive) Bluetooth headphones require a second or two to begin playing. As I'm dealing with short audio clips, this use case necessitates restarting the "audio playing" situation every few seconds.

Maybe the app developers could "play" quiet audio between these short clips. But barring such a development, I'd like to know if higher quality headphones might suffer from less latency in this regard.

That's probably some sort of gate on your headphones that silences audio (by killing power to the amplifier circuitry) if it's below a threshold loudness level, to prevent users from hearing a hissing sound the cheap circuitry produces that is otherwise masked by other louder sounds. When gate opens again, it takes 1-2 seconds for the amplifier to power up completely.