Embeded 48Khz / 20 Bits

Posted by ceviau 
Embeded 48Khz / 20 Bits
September 01, 2011 02:59PM
i need to deliver a quicktime XDCAM HD422 with "Embeded Audio: PCM 48Khz, 20 Bits (little-endian)"

How do i create a 20 bit audio file on MAC, i got some encoding software on PC that create that file but none that support the Mac Only XDCAM HD422 codec

anyone ?
Re: Embeded 48Khz / 20 Bits
September 01, 2011 04:10PM
Blimey! I haven't heard of anyone using 20bit audio or devices for years - are you sure they have that correct? I've always wondered who uses 20bit audio... never had a project with it or need it...

Anyway you can do 8bit 16bit and 24bit Audio not 20bit in FCP.

Set it up in your sequence settings.

Ask the client - I presume they should be able to handle 24bit PCM audio with a XDCAM HD422 50Mbps stream.

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Re: Embeded 48Khz / 20 Bits
September 01, 2011 05:18PM
That's a strange delivery format indeed. Sony's pdf on XDCAM families specify 16 and 24 bits (24 bits for HD422, which is what is now normally used for delivery.


Re: Embeded 48Khz / 20 Bits
September 02, 2011 03:58PM
the source is HDCAM and like Betacam Digital it's 20 bit audio on tape, HDCAM SR is 24bit.

Indeed, those are strange delivery specification. After research, i got some info, it's 24bit file but 20bit audio and 4 empty bit.

I capture that 20bit source in a 24bit format, hoping to get only 20 active bit, i just deliver, waiting for a reply from client to see if the file is ok.
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