View Full Version : BeSweet problem at 96kbs
divxbeast
17th November 2002, 13:59
I'm trying to convert AC3 to mp3 at 96kbs with BeSweetGUI. In that case LAME automaticly force downsamling to 32KKz. Of course I want to keep samplerate to 48KHz but I can't or I don't know how to make command --resample 48 to work. I make something like this:-azid( -n1 -equit -s surround -c normal -g 10db -L -3db ) -ota( -G max ) -boost( /b2=5 ) -lame( --scale 1 -p --alt-preset 96 --resamle 48 ) but LAME anyway do the downsampling. Can someone post commandlines which included all settings for best quality in two cases: 96kbs or 128kbs (48khz)? At the end, what is better for these bitrates: stereo or jointstereo? I'm apologies for my poor english and hope for a fast answer.
bond
17th November 2002, 15:26
Hi I also searched this forum and many others for mp3@96kbs and i found out that
1) --resample 48 doesnt work with any --alt-presets, because the presets dont allow any additional changes
2) --alt-preset 96 is similar to
--abr 96 -h --nspsytune --athtype 2 --lowpass 15.3 --ns-bass -4 --scale 0.85
3) --abr 96 -h --nspsytune --athtype 2 --lowpass 15.3 --ns-bass -4 --scale 0.85 --resample 48
doesnt make sense because the --alt-preset settings only sound good when resampled to 32
4) I never had any sync-probs with a resampled file
5) ogg sounds much better @96kbs than mp3 but there are still other problems by using ogg
divxbeast
17th November 2002, 18:30
OK, that don'work, but what is correct switch to set bitrate to 96kbs and still have samplerate at 48KHz?
JohnMK
17th November 2002, 20:11
--resample 48000 ?
Definitely use joint stereo any bitrate below 192kbit/s. This would naturally by definition mean you should use joint stereo @ 96kbit/s.
divxbeast
18th November 2002, 00:05
Thanks Bond. You was right and I solve the problem.
I am wondering is it incorrect to use Boost (Compress Dynamic Range) and Overall Output Compression at the same transoding? Is that have any sense? Is this two options similar (do the same thing)? If they do, what is better?
pacohaas
19th November 2002, 18:13
@JohnMK: joint stereo is now the recommended setting for all bitrates in LAME, even --alt-preset insane(*now --preset insane) utilizes this mode.
@divxbeast: LAME resamples for a reason, keeping the higher sampling rate will give you worse quality at lower bitrates, that's the whole reason these bitrate cutoffs exist. One thing you can do to increase the quality is use -shibatch() to resample instead of LAME's internal resampler(this is recommended by the LAME developers as their resample algorithm is admittedly inferior to SSRC).
JohnMK
20th November 2002, 02:17
A minor correction. Standard joint stereo isn't used in --alt-preset standard or above (certainly not insane). Instead, Naoki Shibata Safe Joint (--nssafejoint) is used.
damjang
21st November 2002, 13:25
@dspguru:
I want to compress an audio from vobs to --alt-preset 96 (abr) with 44.1kHz sampling but with BeSweetGUI also if I set the --resample to 44.1k the output is always 32k. I try beesweet 1.4 and 1.5b6 with latest besweetgui. Then I try also only besweet with --resample option after the --alt-preset (besweetgui puts --resample before --alt-preset), but nothing.
Is this a lame_enc.dll fault or besweet?
I think (but I'm not sure) that this option is usable in lame.exe
damjang
EDIT: SORRY!!!! :( :( :( :( I found another thread for same problem.... :( :(
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