please help me understand V1's soft audio at DVinfo.net

Ralph Roberts · August 9th, 2007, 06:43 AM

okay... here's what I'm talking about:

I ran a test yesterday using my great Shure studio condensor mike... which I do all voiceovers with and know it's response quit well.

Now, on my Canon XL2, it I set the audio so that peaks are at 0db (never mind whether I SHOULD do that) the peaks are at 0db and the manual gain control on the camera is about 7. That's fine, that's what I'm used to on any other camera I've ever used (except for the V1). When I import my video from the XL2 into Premiere Pro 2.0, the peaks are still at 0db.

Now, same set up with the V1. Peaking at 0db, although to get that I have to run the manual gain all the way open to 10 to get it. But I could live with that EXCEPT...

when imported into Premiere Pro 2, the audio now peaks at -12db???

THAT is what's a bugging me? Can Brother Spotted Eagle or anyone else PLEASE tell me why the V1 has such soft audio and what to do about it?

Thanks,

--ralph

Piotr Wozniacki · August 9th, 2007, 06:48 AM

Ralph, according to some sources, -12dB is where they should be with 'professional HDV' audio. I personally have found that the apparent softness is not the real problemm with the V1 audio, see here:

http://www.dvinfo.net/conf/showpost....20&postcount=1

The professionally recorded sound track I got from the radio crew, when fed into Vegas, peaked exactly around -12dB as well!

Ralph Roberts · August 9th, 2007, 07:41 AM

Thanks, Piotr... I read your posting... this is not encouraging about the sound on the V1.

Does anyone know if Sony has officially addressed this yet?

--Ralph

Ralph Roberts · August 9th, 2007, 07:42 AM

Quote:

Originally Posted by Piotr Wozniacki

The professionally recorded sound track I got from the radio crew, when fed into Vegas, peaked exactly around -12dB as well!

Well, -12db is too danged LOW. ;-)

--Ralph

Marcus Marchesseault · August 9th, 2007, 09:49 PM

-12db is a good target point for your audio so you have some wiggle room to prevent clipping peaks. I do agree that a 0db peak on your camera should not be a -12db peak in your NLE. Unfortunately, I can not help you there.

August 9th, 2007, 06:43 AM	#1
Ralph Roberts Regular Crew Join Date: Sep 2004 Location: Alexander, NC Posts: 188	please help me understand V1's soft audio okay... here's what I'm talking about: I ran a test yesterday using my great Shure studio condensor mike... which I do all voiceovers with and know it's response quit well. Now, on my Canon XL2, it I set the audio so that peaks are at 0db (never mind whether I SHOULD do that) the peaks are at 0db and the manual gain control on the camera is about 7. That's fine, that's what I'm used to on any other camera I've ever used (except for the V1). When I import my video from the XL2 into Premiere Pro 2.0, the peaks are still at 0db. Now, same set up with the V1. Peaking at 0db, although to get that I have to run the manual gain all the way open to 10 to get it. But I could live with that EXCEPT... when imported into Premiere Pro 2, the audio now peaks at -12db??? THAT is what's a bugging me? Can Brother Spotted Eagle or anyone else PLEASE tell me why the V1 has such soft audio and what to do about it? Thanks, --ralph __________________ --Ralph Roberts, CEO 1VIDeo / aBOOKS / Creativity, Inc.

August 9th, 2007, 06:48 AM	#2
Piotr Wozniacki Inner Circle Join Date: Aug 2006 Location: Poland Posts: 4,086	Ralph, according to some sources, -12dB is where they should be with 'professional HDV' audio. I personally have found that the apparent softness is not the real problemm with the V1 audio, see here: http://www.dvinfo.net/conf/showpost....20&postcount=1 The professionally recorded sound track I got from the radio crew, when fed into Vegas, peaked exactly around -12dB as well! __________________ Sony PXW-FS7 \| DaVinci Resolve Studio; Magix Vegas Pro; i7-5960X CPU; 64 GB RAM; 2x GTX 1080 8GB GPU; Decklink 4K Extreme 12G; 4x 3TB WD Black in RAID 0; 1TB M.2 NVMe cache drive

August 9th, 2007, 07:41 AM	#3
Ralph Roberts Regular Crew Join Date: Sep 2004 Location: Alexander, NC Posts: 188	Thanks, Piotr... I read your posting... this is not encouraging about the sound on the V1. Does anyone know if Sony has officially addressed this yet? --Ralph __________________ --Ralph Roberts, CEO 1VIDeo / aBOOKS / Creativity, Inc.

August 9th, 2007, 09:49 PM	#5
Marcus Marchesseault Trustee Join Date: Nov 2005 Location: Honolulu, HI Posts: 1,961	-12db is a good target point for your audio so you have some wiggle room to prevent clipping peaks. I do agree that a 0db peak on your camera should not be a -12db peak in your NLE. Unfortunately, I can not help you there.