VoxForge
--- (Edited on 11/13/2014 4:00 pm [GMT-0600] by jflsbtovs64mduyg4ngt) ---
Thanks for the suggestion, but usually these sources of speech have Copyright issues.
--- (Edited on 11/13/2014 10:27 pm [GMT-0500] by kmaclean) ---
I suggest or draw your attention to public government recordings such as Senate videos, which in most countries are free from copyright issues, many have little ambient noise, and there are dozens of speakers for whom there are hours of recordings - e.g. when filibusting.
Also it has been eight years since the discussion about compressed & uncompressed recordings; during the 1990s high compression rates were still essential, but cheaper greater bandwidth and storage capacities have faciliated better quality recordings during the past decade.
--- (Edited on 3/17/2018 9:59 pm [GMT-0500] by ) ---