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Gear / Technical Help => Recording Gear => Topic started by: nedstruzz on August 19, 2005, 08:17:44 AM

Title: Transfering DAT to 722
Post by: nedstruzz on August 19, 2005, 08:17:44 AM

I am going to be transfering old DATS to the 722 to Archive on DVD.  I did a test run last night using the Digital AES out from my Fostex D5 Digi AES in to the 722.  I had assumed that the 722 would lock to the 16/44.1 DAT however when I transfered to Audition I noticed that the file was now reading 24/44.1

I do have the 722 set to 24/48 for live recording but just thought that it would stay 16/44.1?  Any thoughts?  Is it possible to up the bit rate through a digital patch?  I would think no. 

Title: Re: Transfering DAT to 722
Post by: MattD on August 19, 2005, 09:22:18 AM

Hey Ned! Bit rate is not something you can detect from an incoming digital signal. I think you need to set the 722 to record 16 bits (no dither) from the digital input. It should automatically lock to the correct sample rate. I'm betting that the last 8 bits of the "24/44.1" you got from this run with the DAT > 722 are empty.

BTW, the 24/96 Garaj stuff will be up very shortly. I'd be interested in hearing a track of yours as well.

Title: Re: Transfering DAT to 722
Post by: nedstruzz on August 19, 2005, 10:06:14 AM

Thanks Matt that is very interesting to know.  I always knew that it would clock the sample rate from the master but I was not sure about Bit Rate.  Do you think that the transfer that I described would have any negative effects sound wise on the 24 bit version?

As for the Garaj, I don't have a way to upload but I would be happy to send you the 24/48 files via snail mail and fell free to post them.  Shoot me a PM with your address. 

Title: Re: Transfering DAT to 722
Post by: MattD on August 19, 2005, 10:47:09 AM

Quote from: nedstruzz on August 19, 2005, 10:06:14 AM

Do you think that the transfer that I described would have any negative effects sound wise on the 24 bit version?

Nope. I'd just say to use software to truncate those last 8 bits and continue from there with tracking it out and such.

Title: Re: Transfering DAT to 722
Post by: nedstruzz on August 19, 2005, 12:58:30 PM

OK, now if I were to Dither the 24 bit version back down to 16 would the program automatically locate those empty bits.  Dither is suppose to find the least significant bits which would obviously be those eight empty bits correct? 

Title: Re: Transfering DAT to 722
Post by: Brian on August 19, 2005, 01:15:45 PM

yeah that's what i'd do.  even if the bits are empty i would dither anyway.

Title: Re: Transfering DAT to 722
Post by: mhibbs on November 01, 2005, 11:39:06 PM

It may be possible to just edit the header in Wavelab etc to 16bits.  I'm not sure dithering will just kill the empty bits which is really what you're after.

Title: Re: Transfering DAT to 722
Post by: phishtaper4v on November 09, 2005, 09:18:35 PM

Ned! Get in touch! Schmidt