[bubblesorting]

Not very good keyboard player here: higher than ~~8ms is annoying for playing/recording. But 50ms probably isn't bad if say, you're blasting a message through a factory intercom, or piping music through a dental office, or stuff like that.

[detaro]

And for large venues, remember that sound only goes ~3.4 m in 10 ms. loudspeaker-to-ear latency can be larger than all of your processing. Doesn't mean it doesn't matter, but makes the last few ms less important.