Any HDV cam have uncompressed audio at DVinfo.net

Dwight Flynn · November 14th, 2006, 05:29 PM

Do any of the current crop of HDV cams have uncompressed audio instead (or in addition too) of mpeg1?

Barry Green · November 14th, 2006, 06:05 PM

By definition, no. HDV doesn't provide for uncompressed audio. The HVX has it, but it's not HDV. And the forthcoming generation of AVC-HD cameras can offer it, but again they're not HDV.

Now, with that said, there was once upon a time some confusion over the HD100, as it was apparently engineered to record HDV-compliant compressed audio but also simultaneously recorded uncompressed audio in the DV audio track portion of the tape. So there was some discussion as to whether you could rewind the tape and capture audio-only, so you'd capture in two passes: once for HDV video/audio, then rewind, put the switch in "DV" mode, and capture again to get uncompressed PCM audio (but no video).

I believe Steve Mullen tried it and the results weren't encouraging; maybe it was only one track or maybe the audio was overmodulated, I don't really remember.

Dwight Flynn · November 15th, 2006, 11:29 AM

yeah, I was hoping for more of an in camera second track solution but no dice. Oh well that's why G-D made separate sound systems.

November 14th, 2006, 05:29 PM	#1
Dwight Flynn Major Player Join Date: Dec 2003 Location: New York, NY Posts: 393	Any HDV cam have uncompressed audio Do any of the current crop of HDV cams have uncompressed audio instead (or in addition too) of mpeg1?

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November 14th, 2006, 06:05 PM	#2
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	By definition, no. HDV doesn't provide for uncompressed audio. The HVX has it, but it's not HDV. And the forthcoming generation of AVC-HD cameras can offer it, but again they're not HDV. Now, with that said, there was once upon a time some confusion over the HD100, as it was apparently engineered to record HDV-compliant compressed audio but also simultaneously recorded uncompressed audio in the DV audio track portion of the tape. So there was some discussion as to whether you could rewind the tape and capture audio-only, so you'd capture in two passes: once for HDV video/audio, then rewind, put the switch in "DV" mode, and capture again to get uncompressed PCM audio (but no video). I believe Steve Mullen tried it and the results weren't encouraging; maybe it was only one track or maybe the audio was overmodulated, I don't really remember.

November 15th, 2006, 11:29 AM	#3
Dwight Flynn Major Player Join Date: Dec 2003 Location: New York, NY Posts: 393	yeah, I was hoping for more of an in camera second track solution but no dice. Oh well that's why G-D made separate sound systems.