Boosting speech in ac3

Foofaraw · 15th March 2010, 01:27

I have an ac3 I'd like to convert to a stereo (mp3) - it seems the spoken dialog is being almost drowned out by other sounds.

I'm wondering how to do this - ac3 is 5 channels right?

Is there a primary spoken dialog channel one could boost or lower the others?

kypec · 15th March 2010, 06:55

AC3 can be also 2.0 = stereo only in which case boosting the dialogs is not that easy

Limit · 15th March 2010, 11:50

AC3 supports different speaker settings. It is hard to boost speech if your source is stereo, but it is usually not needed either. For downmixing (5.1 to 2.0) you should try to increase the volume of the center channel.

Foofaraw · 15th March 2010, 16:11

Well source is 5, but I'll try boosting the center one and see what happens. Thanks

laserfan · 15th March 2010, 16:21

Depending on your source and what you are trying to accomplish, you might find that simply using eac3to to convert to WAVs, and then converting the center channel alone to an AC3 1.0 might give you the results you want.

Foofaraw · 16th March 2010, 17:24

Well as i said i was trying to convert it to an mp3 - i'll see if i can figure out eac3to

15th March 2010, 01:27	#1 \| Link
Foofaraw Registered User Join Date: Apr 2004 Posts: 126	Boosting speech in ac3 I have an ac3 I'd like to convert to a stereo (mp3) - it seems the spoken dialog is being almost drowned out by other sounds. I'm wondering how to do this - ac3 is 5 channels right? Is there a primary spoken dialog channel one could boost or lower the others?

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15th March 2010, 06:55	#2 \| Link
kypec User of free A/V tools Join Date: Jul 2006 Location: SK Posts: 826	AC3 can be also 2.0 = stereo only in which case boosting the dialogs is not that easy

15th March 2010, 11:50	#3 \| Link
Limit Registered User Join Date: Oct 2005 Location: .DE Posts: 15	AC3 supports different speaker settings. It is hard to boost speech if your source is stereo, but it is usually not needed either. For downmixing (5.1 to 2.0) you should try to increase the volume of the center channel.

15th March 2010, 16:11	#4 \| Link
Foofaraw Registered User Join Date: Apr 2004 Posts: 126	Well source is 5, but I'll try boosting the center one and see what happens. Thanks

15th March 2010, 16:21	#5 \| Link
laserfan Aging Video Hobbyist Join Date: Dec 2004 Location: Off the Map Posts: 2,461	Depending on your source and what you are trying to accomplish, you might find that simply using eac3to to convert to WAVs, and then converting the center channel alone to an AC3 1.0 might give you the results you want.

16th March 2010, 17:24	#6 \| Link
Foofaraw Registered User Join Date: Apr 2004 Posts: 126	Well as i said i was trying to convert it to an mp3 - i'll see if i can figure out eac3to