• Avid Media Composer

  4 Channels of audio

  Posted by Dan Newton on August 28, 2009 at 9:09 am

  hey

  have a question —–

  normally when I output a tape on a digi or sp beta —- i normally have 2 channels of audio

  — my question is — if was to do 4 channels of audio —- what would I need to do —

  do i make a track 3 and track 4 on the avid timeline and duplicate the tracks on track one and track two ???

  please advise

  Job Ter burg replied 16 years, 8 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Job Ter burg

  August 28, 2009 at 10:38 am

  That’s an option, but you would need to set the Avid to Direct Out (Audio Project Settings -> Output Tab). Alternatively, the DigiBeta decks have a menu setting where they can be set up so that the ch1/2 input is copied onto ch3/4. That would give you a tape where ch1=ch3 and ch2=ch4.
• 

  Dan Newton

  August 28, 2009 at 9:03 pm

  Hey

  thanks for gettign back to me —-

  ok — so if I decide to go for method One — duplicatign the two audio layer tracks — 1 and 2 onto track 3 and 4- —

  tell me if this is correct —

  AUDIO TOOL —– then click output settings —– and make sure the audio output is on

  but then when I am in there — there are four options of audio

  4 tracks —

  4 tracks —-

  8 tracks —

  not tooo sure can;t remember —-

  please could you tell me a step by step on how to do this — a guide —- i looked through avid help does not help one bit —

  In addition, one more question —- the studio has already mix down the audio and given it to me —
  do I need to convert it to mono as most tv stations require mono — as the music studio already mixed it down for me — do i have to do it in avid — if so could you tell me how cause i am not sure where to press to convert — i am a final cut user and yes you may hear that alot but please help me on this its getting frustrating

  will be awaiting for your reply

  cheers mate
• 

  Job Ter burg

  August 29, 2009 at 6:12 am

  OK, I’ll be assuming the following:

  1. You received a two-track (stereo) mix.
  2. You are connecting to your DigiBeta deck over SDI for both picture and sound.
  3. You need to deliver this stereo mix on both 1/2 and 3/4 of the tape.

  In Audio Project Settings, toggle to Direct Out (by clicking on the button that now says “stereo” or “mono”.

  At the lower part of that window, choose to switch SDI audio on, choose 4 tracks, 20-bit (Digital Betacam has 4 ch, 20-bit audio).

  In the sequence, place the mix on A1/2 and A3/4.

  In the Audio Mixer tool, make sure that at the bottom of each slider, the right routing is chosen. A1->CH1, A2-CH2, A3->CH3, A4->CH4.

  Then output.

  If you were given a stereo mix, then that is what you lay to tape, IMHO. If you are in doubt about whether you need to deliver mono or stereo, consult with the folks that supplied you the mix and check the delivery specifications. There’s no telling what they are, since they vary.

  If you are eventually exepected to make a mono delivery, you will need to set this up differently, and you will need to make some level alterations if you want to stay within specs. If someone else has been doing the mix, they should be the folks worrying about that, IMO.

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