Proper way to set-up tone?

StormMarc wrote on 8/26/2004, 12:25 PM

I'm sending shows to cable access stations.

Should I put a -12db 1 khz tone at the beginning and also have my audio peaking at -12db?

Should I tell them on the slate the tone is at -12db or should I say 0 db because of the difference between analog and digital?

Many thanks.

Confused,

Marc

Comments

Spot|DSE wrote on 8/26/2004, 2:35 PM

No, you should put tone at -20db on the DV tape, and tell them that it is at the ATSC spec. http://www.atsc.org for more information.
http://www.digitalprosound.com/2003/02_feb/tutorials/analog_dv_levels.htm will also get you some additional information.
Vegas5 puts out a -20dB tone when you print to tape, if you tell it to.

SeaJohn wrote on 8/26/2004, 3:30 PM

I've been using the output meter of the master to get the levels of my sound to around 0dB (according to the meters). A few days ago I posted a related question, and somebody recommended that I make the 1kHz tone level match my audio. However, you are recommending that I leave the tone alone, at -20dB below my program audio. Is this correct?

Thanks. I'm off to read the tutorial now.

StormMarc wrote on 8/26/2004, 5:48 PM

Thanks Spot. So what should my program audio peak at if my tone is at -20?

Thanks,

Marc

Spot|DSE wrote on 8/26/2004, 10:19 PM

Your program peak in Vegas should be around -.03 db, but anywhere in the -3 dB to -.02dB is fine. This gives you a little play in the transfer. We use WAVES or Ozone to max our levels, set to -.-3dBFS

StormMarc wrote on 8/26/2004, 11:44 PM

Thanks Spot!