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Activity Forums Blackmagic Design Monitoring more than 2 channels

  • Monitoring more than 2 channels

    Posted by Sean Lander on April 20, 2006 at 4:56 am

    I’m interested in finding out what people are doing to be able to monitor more than 2 channels of audio from their decklink cards.
    We’ve got a Decklink Pro with SPDIF A B C D outputs. It appears that A is channels 1 and 2, B = 3 and 4 etc. Doing a program with international audio required on tracks 3 and 4 and would love a way to switch between them. Currently we are just using Edirol speakers with built in spdif to monitor audio. (Means physically switching leads to monitor 3 & 4) Suggestions greatly appreciated.

    Sean Lander replied 20 years ago 3 Members · 3 Replies
  • 3 Replies
  • Baz Leffler

    April 21, 2006 at 12:06 am

    Hey Sean.. With our Multibridge Extreme we are using an amplifier that has discrete 5.1 inputs. We take the 4 x AES and feed them into a Tascam AE8 which converts them to TDIF (to feed out DA88) and also feed a Tascam IF-DA8 which converts TDIF to 8 x analog outputs. Outputs 1 to 2 feed one stereo input of the amplifier and outputs 3 to 8 feed the 5.1 inputs of the amplifier.

    We do this mainly because when we master to HDCam we are able to provide a stereo mix to tracks 1 and 2 and a 5.1 surround mix to tracks 3 to 8. But more importantly when editing it assists us in laying up tracks for our audio post suite. Maybe a little complicated for most but it is all to do with ‘futureproofing’

  • Adam Levine

    April 21, 2006 at 4:06 am

    I went through the same issue a while back with my DL Pro, and the best solution I could come up with without chewing up a ton of dough was the Tascam TM-D1000 Digital Mixer, with the necessary upgrade board that adds extra digital inputs (+2 SPDIF for 3 total, +2 AES for 3 total, +1 TDIF for 2 total). It hasn’t been manufactured in a few of years, but I think I paid around $350 for the whole deal on EBay. Right now mine is hooked up to my new MBE, via 8-channel AES through a IF-AE8 (around $100 on eBay), and I use the SPDIF for my MBox I/O.

    Same issue here: N American mixes on 1+2, M&Es on 3+4. With this setup, you can input 6 channels from your SPDIF, and switch monitoring between 3 sets of stereo outputs (6 channels total), which are analogue, or out 2 stereo pairs of either SPDIF or AES (4 channels total), or out either TDIF to some other device (16 channels total).

    It’s totally overkill, but they’re pretty inexpensive, and it is like an audio swiss army knife. Read about it here:

    https://forums.creativecow.net/cgi-bin/new_read_post.cgi?univpostid=751360&forumid=124&postid=751360&pview=t&archive=T
    https://forums.creativecow.net/cgi-bin/new_read_post.cgi?univpostid=748202&forumid=124&postid=748614&pview=t&archive=T

  • Sean Lander

    April 25, 2006 at 4:08 pm

    Thanks a lot for the reply. That sounds exactly like what I’m after. Funny I would l have thought there would be a market for something like this.
    I guess most people monitor off their deck?

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