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Monitoring recording in capturing...is it possible? also bad BUZZ intermittent on recorded channels
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bryonac
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Joined: 28/01/2013 23:11:08
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Need some advice and help.

I mix for a mobile church. we use a 24.4.2 board. I also have a new laptop. ASUS G75VX with thunderbolt. We use a thunderbolt to firewire converter because I couldn't find any new laptops with firewire (discussion for another day). The live house house mix sounds great. I've recorded 4 four sundays on this setup. the first and last sunday i ran into an issue a really bad buzz that would appear on all channels in the recording two or 3 times during the service. The other 2 times, I had no problems with my recording.

So first my simple question...is there a way to monitor (and listen to) what Capture is recording live? Maybe through the computer headphones jack? I hate it when i get home and hear the buzz in the sermon or the music mix...then I can't do anything to fix the problem since we only get one take on a sunday.

OK, now the hard question...has anybody else run into this "BUZZ" in their recording and what did you do to fix it?

Thx,
Monolithent
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Capture records directly off of the A/D converter immediately after the preamp. Unless you have it recording post Fat Channel there's no wa I can think of the hear it without a headphone amp routed to an aux and running (I think pre 1).

As far as the buzz, if it is in everything then I would suspect a computer power or cabling issue. Especially if it is intermittent.

Can you snag us a recording to hear what you're describing?
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My advice and suggestions should never be considered advice or suggestions. These are mostly insane ramblings of a poor aircraft mechanic who can, strangely enough, still hear.

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Presonoid
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Never had reason to try this but

With the firewire buttons on the SL channels engaged during recording you will be listening to the tracks as they laid down in Capture. So mic/line is sent to Capture whilst Capture returns the very same tracks for listening. You will add latency tho.

This message was edited 1 time. Last update was at 14/05/2013 00:04:12

bryonac
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I have attached the portion of the sermon from this last week where the buzz began. I haven't done any editing to this sample. It started 40 minutes into the service and continued on for the rest of the service. Pastor is using a Shure SLX with a country man. I got rid of our can lights this week, thinking that maybe that was the problem.

Still baffled.
pastor with buzz.mp3
 Description [Disk] Download
 Filesize 572 Kbytes
 Downloaded:  224 time(s)

This message was edited 1 time. Last update was at 15/05/2013 09:04:25

Monolithent
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With the intensity of the interference changing with the input levels I would say that you are experiencing some kind of internal (to the computer) interference with the firewire.

Without knowing more about your computer I can't really fathom a guess as to what is causing it.

If you say that the mains are clean and the noise is across all channels then that leaves only the computer as a possible culprit.
http://support.presonus.com

Tallest guy in the Mod Squad with all his hair still on his head.

No I'm not a freaking pilot!! The Air Force won't let me have a suit with a zipper...or sometimes shoestrings.

My advice and suggestions should never be considered advice or suggestions. These are mostly insane ramblings of a poor aircraft mechanic who can, strangely enough, still hear.

StudioLive 16.4.2, AudioBox 1818VSL, AudioBox 44VSL, Faderport, Digimax FS,, M-Audio Firewire 410
--MultiBoot System--
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Gigabyte motherboard--SYBA TI Firewire XIO2200A--i7 2600k Quad Core--16 GB DDR III--Custom 2U Rackmount--4 TB Raid (all internal SATA II)--19" Samsung HDMI LCD on pivoting VESA 1U Mount
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gadget69
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Is this a laptop? if so I would suspect the power supply.. this is a very common occurrence with laptops and power supplies...
NOTE: If your having an issue, open a tech support ticket and bring the number here if you want help!
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Jonathan Sadler
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Joined: 26/06/2014 05:27:13
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Hi,

Did you ever solve your problem?

I've got exactly the same issue... using 2 daisy-chained Studiolive 16.4.2 desks connected to an HP Elitebook with a Texas Instruments ExpressCard firewire adaptor.

This happens randomly on some channels, typically from the Slave desk, not the master, and often on Channel 33/34 Main Mix.

I have a vague idea that driving a channel too hot might cause it, but I've get to do some more playing around.

Cheers,
Jonathan.
 
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