Looks like Rarewares build is fastest without patches. But the problem is 32bit & 64bit versions don't null and three pops appear in beggining of one of the files (when null compared). I have no idea why if they use same Intel Compiler.
Maybe it should be recompiled again?

I've re-compiled and uploaded the lame bundles. The 32 bit version appears unchanged, but there is a difference with the 64 bit version. Personally, I can't hear a difference, but maybe someone can do a more exhaustive check.

Quote from: john33 on 2017-12-12 22:05:50

I've re-compiled and uploaded the lame bundles. The 32 bit version appears unchanged, but there is a difference with the 64 bit version. Personally, I can't hear a difference, but maybe someone can do a more exhaustive check.

I have compared 4 files encoded with your 64-bit version compiled in October and in December. Binary comparator in foobar2000 says "no differences found".
BTW, I am converting using foobar2000 converter. Is it in any way important that I am inititating 64-bit LAME encoder from foobar2000 which is 32-bit program?

I didn't expect there to be any difference between the Oct and Dec compiles, I just re-checked the compile options just to be sure that I hadn't missed something the first time round.