mencoder generate an incompatible faac audio

[metrobotte@…]

I use mencoder with faac
and x264 for good avis,
when i try
crop=692:408:10:84
dsize=512:284
expand=512:384
bitrate=750
opt1="subq=6:partitions=all:8x8dct:me=umh:frameref=5:bframes=3:b_pyramid:weight_b:bitrate=$bitrate"
opt2="subq=5:8x8dct:frameref=2:bframes=3:b_pyramid:weight_b:bitrate=$bitrate"
opt3="subq=4:bframes=2:b_pyramid:weight_b:bitrate=$bitrate"

mencoder -vf harddup,crop=$crop,dsize=$dsize,scale=$dsize,expand=$expand,pp=0x20000 -ovc x264 -x264encopts $opt1:pass=1 -nosound -o /dev/null titolo.vob
mencoder -vf harddup,crop=$crop,dsize=$dsize,scale=$dsize,expand=$expand,pp=0x20000 -ovc x264 -x264encopts $opt1:pass=2 -oac faac -faacopts br=128 -o tmp2.avi titolo.vob

mplayer play file correctly,all others video player
and programs also under linux(avinaptic,avidemux)
didn't recognize the faac audio(show error "unknow
audio codec")

if i give

crop=692:408:10:84
dsize=512:284
expand=512:384
bitrate=750
opt1="subq=6:partitions=all:8x8dct:me=umh:frameref=5:bframes=3:b_pyramid:weight_b:bitrate=$bitrate"
opt2="subq=5:8x8dct:frameref=2:bframes=3:b_pyramid:weight_b:bitrate=$bitrate"
opt3="subq=4:bframes=2:b_pyramid:weight_b:bitrate=$bitrate"

mencoder -vf harddup,crop=$crop,dsize=$dsize,scale=$dsize,expand=$expand,pp=0x20000 -ovc x264 -x264encopts $opt1:pass=1 -nosound -o /dev/null titolo.vob
mencoder -vf harddup,crop=$crop,dsize=$dsize,scale=$dsize,expand=$expand,pp=0x20000 -ovc x264 -x264encopts $opt1:pass=2 -oac faac -faacopts br=128 -fafmttag 0xff -o tmp2.avi titolo.vob

nothing change..

if do mencoder -ovc copy -oac copy -fafmttag 0xff -o tmp.avi tmp2.avi

ok..avidemux recognize faac...but no sound..:(

[compn]

can you try
-oac faac -faacopts br=128:mpeg=4:object=1
or
-oac faac -faacopts br=128:mpeg=4:object=2

[metrobotte@…]

I tried those modes..nothing
:(