Robert Rozak
October 20th, 2010, 08:51 PM
I'd like to get a sense of the feasibility of daisy-chaining tracks to yield 2 recordings of the same mic, where the first recording is backed-off 12dB or so (to provide further overload/headroom margin).
Here's what I'm thinking:
1) Baseline Recording:
- plug a mic into input 1, and record your voice with peaks at -12dB FS (with quiet periods, to get the sense of SNR). (keep the LEVEL knob at 0dB, and only dial in the SENS)
2) Daisy-chain backup track
- plug a mic into input 1, and set up so your voice peaks at -24dB FS (keep the LEVEL knob at 0dB, and only dial in the SENS)
- plug the RCA output from track 1, into the mic input of track 2
- adjust track 2 so your voice peaks at -12dB FS (keep the LEVEL knob at 0dB, and only dial in the SENS ... may need to switch MIC/LINE to LINE?)
- record your voice (with quiet periods, to get the sense of SNR) on both tracks 1 and 2
Please post your WAV's and throughts ...
Then we could take the WAV's, normalize the peaks to compare SNR.
Track 2 might suck, because you're taking away 12dB of signal from the track 1 output D/A. But, on the other hand, it might not be that bad, because you're throttling back the preamp via the SENS. If it works OK, then all you would need to do is adjust the track 1 LEVEL (aiming for -24dB FS) during a live mix, and you'll have 2 tracks (where one has more headroom margin in case somebody screams or something).
'ya never know for sure until you try it ...
Many thanks ...
-R
Here's what I'm thinking:
1) Baseline Recording:
- plug a mic into input 1, and record your voice with peaks at -12dB FS (with quiet periods, to get the sense of SNR). (keep the LEVEL knob at 0dB, and only dial in the SENS)
2) Daisy-chain backup track
- plug a mic into input 1, and set up so your voice peaks at -24dB FS (keep the LEVEL knob at 0dB, and only dial in the SENS)
- plug the RCA output from track 1, into the mic input of track 2
- adjust track 2 so your voice peaks at -12dB FS (keep the LEVEL knob at 0dB, and only dial in the SENS ... may need to switch MIC/LINE to LINE?)
- record your voice (with quiet periods, to get the sense of SNR) on both tracks 1 and 2
Please post your WAV's and throughts ...
Then we could take the WAV's, normalize the peaks to compare SNR.
Track 2 might suck, because you're taking away 12dB of signal from the track 1 output D/A. But, on the other hand, it might not be that bad, because you're throttling back the preamp via the SENS. If it works OK, then all you would need to do is adjust the track 1 LEVEL (aiming for -24dB FS) during a live mix, and you'll have 2 tracks (where one has more headroom margin in case somebody screams or something).
'ya never know for sure until you try it ...
Many thanks ...
-R