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View Full Version : Transcoding audio through GKnot question


iparout
27th June 2003, 20:40
Hi.

I am using GKnot 0.28.5 and I transcode the AC3 audio through the Audio Tab after Save&Encode. The parameters I set under MP3 Custom Parameters are -s surround -c heavy --maximize for Azid and -alt--preset 128 for Lame. However the command that is loaded into BeSweet is the folowing : D:\Audio - Video - Picture\Video\Tools\Gordian Knot\BeSweet.exe -core( -input E:\RedDragon\RedDragon AC3 T01 3_2ch 384Kbps DELAY 0ms.ac3 -output E:\RedDragon\RedDragon AC3 T01 3_2ch 384Kbps DELAY 0ms.mp3 -logfile E:\RedDragon\RedDragon AC3 T01 3_2ch 384Kbps DELAY 0ms.log ) -ota( -hybridgain ) -azid( -s surround -c heavy --maximize ) -lame( --alt-preset 128 ) -profile( Gordian Knot 0.28 )

My question is this : Why is the -hybridgain switch enabled without my command ? I do not want it to be used. What shall I do if I don't want it enabled and still want to transcode the audio through GKnot ? Or should I just do it manually through BeSweet ?

Thanks

Edit: Title changed by moderator

len0x
28th June 2003, 16:37
Why ppl want to have that disabled?
(I'm not really an expert in audio...)

jggimi
28th June 2003, 16:44
Please, use a better title for your question next time. Thanks!9) Use a title that describes the content of your post...

iparout
28th June 2003, 17:29
Well, since I am using the --maximize switch, I don't need the hybridgain which, according to a few tests I did a couple months ago, caused clipping.

Is there anyway to have it disabled ?

BTW, regarding the title, I'm sorry, I just couldn't find something that would describe the specific question Could a mod fix it and make it "Transcoding audio through GKnot question" ?

Thanks.

jggimi
28th June 2003, 20:54
Done :D

Now you will probably get more people looking at it.

iparout
29th June 2003, 00:15
Originally posted by jggimi
Done :D

Now you will probably get more people looking at it.

Thank you... ;)

bond
29th June 2003, 09:38
Originally posted by iparout
-azid( -s surround -c heavy --maximize )hm interesting settings!?
why do you use heavy dynamic compression?
and why do you maximize in azid and not in besweet (-ota) itself? i think i read somewhere that besweet is more reliable in that matter (that's why it was implemented)...
i also read that hybridgain is searching on his own to find out usable values for gain (i think that it ends normaly by about 97% or so)
and there was a problem with hybridgain yes but this should have been fixed (i also dont have any problems anymore)

iparout
29th June 2003, 10:31
I use heavy dynamic compression because I like the sound to be as loud as possible. Also, regarding the hybridgain and --maximize switch, I prefer --maximize because of some extensive testing I did a couple months ago.

KpeX
29th June 2003, 22:12
Dynamic Range Compression is _not_ the same as gaining or normalizing, it won't increase your overall volume, more info here (http://forum.doom9.org/showthread.php?s=&threadid=56020). Getting back to your question, why not do it manually? Much less hassle ;) That's just my two cents, do whatever sounds best to your ears.

len0x
30th June 2003, 10:49
Originally posted by iparout
Is there anyway to have it disabled ?


Unfortunately no. It's hardcoded in the code (long time ago by TheWef). I don't really know reasons for that...