Rockbox

If playback is in progress, and voice menus are enabled, the sound menu
is not spoken.

I have confirmed that this is caused by the statement
pcmbuf_set_low_latency(true);
in sound_menu().

If I take that statement out, then the menu is spoken as expected.

Does that low_latency setting really prevent the voice from working?
It did not seem to me to add much latency.

I really would prefer all my menus spoken, so if this can't be fixed for
some reason, I would suggest making the pcmbuf_set_low_latency() call
dependent on voice menus being disabled.