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Please help! Atem TV HD soft audio level

PostPosted: Thu Apr 20, 2017 11:29 am
by Kenny Shem
Hi all. I'm using Sennheiser G3 wireless set into the analog inputs behind the switcher. No matter how much audio gain I adjust in the G3, the audio level is very low. As low as about -30 or -20 db. Increasing the audio level in the audio mixer software doesn't help much. Adjusting too much gain from the G3 will cause peaking and distort the sound. In the end I have to plug the G3 into one of the camera and have the audio sent thru the SDI cable into switcher and it works great this way.

Is it because atem HD only accept line level audio and not mic level?

Anyone has such problem? Thank you!

Re: Please help! Atem TV HD soft audio level

PostPosted: Thu Apr 20, 2017 11:53 am
by Thomas Seewald
Is it because atem HD only accept line level audio and not mic level?
Yes.

Insert a small amplifier or mixing console for bringing mic level to line Level.

Re: Please help! Atem TV HD soft audio level

PostPosted: Thu Apr 20, 2017 12:07 pm
by Tom_Bassford
You need a mic preamp or small mixing desk.


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Re: Please help! Atem TV HD soft audio level

PostPosted: Thu Apr 20, 2017 1:25 pm
by MambaFiber.com
In the G3 receiver menu you will find an item called AF Out. Set this to the highest number, and the receiver will output line level. The lowest value will give you a mic level output.

Set the transmitter menu Sensitivity value so that the G3 meters are the correct level with your microphone, usually -9 for quiet speaking, -12 or -15 for loud speaking. YMMV.

Re: Please help! Atem TV HD soft audio level

PostPosted: Sat Apr 22, 2017 7:54 am
by Kenny Shem
Thanks all for the replies! If I just use one of the XLR input port, there seems no way in software to duplicate the channel onto the other unused channel to make it stereo right? Only way is to use a physical splitter?

Re: Please help! Atem TV HD soft audio level

PostPosted: Sat Apr 22, 2017 3:51 pm
by Denny Smith
You can use a small mixer like the Sound Devices MixPre and Pan the mono input to feed both channels of audio. If you stsrt with a single mono audio source, duplicating it to two channels, does not make it a stereo signal. You need two Mic's or a Stereo Mic to get a true stereo feed. Panning the single feed off center to two channels of output will give a stereo like effect, but still not true stereo, just a dual mono feed.
Cheers

Re: Please help! Atem TV HD soft audio level

PostPosted: Sat Apr 22, 2017 11:49 pm
by John Kane
If you are comfortable with a soldering iron you can make a cable that has 1 x female XLR to 2 x Male XLRs using thin mic cable. Very useful adaptor to keep in the tool kit.
Alternatively here is a link to one https://www.bhphotovideo.com/c/product/252312-REG/Hosa_Technology_YXM_121_XLR_Female_to_2.html

Re: Please help! Atem TV HD soft audio level

PostPosted: Tue Apr 25, 2017 2:25 am
by Denny Smith
A Y cable works OK with +4dB line level signals, but not with mic level signals. You need a preamp/mixer to split the signal out two outputs to feed the ATEM.
Cheers

Re: Please help! Atem TV HD soft audio level

PostPosted: Mon May 01, 2017 7:19 am
by Kenny Shem
I'm looking at Zoom F4 as the preamp. Anyone know if the gain is good enough? I currently have Tascam Dr44WL but it doesn't output high gain.

Re: Please help! Atem TV HD soft audio level

PostPosted: Mon May 01, 2017 5:04 pm
by Denny Smith
Try a Audio Devices MixPre, much better option, as it is a real mixer with high gain output, still in a small form factor.

Re: Please help! Atem TV HD soft audio level

PostPosted: Tue May 02, 2017 3:35 am
by Kenny Shem
Denny Smith wrote:Try a Audio Devices MixPre, much better option, as it is a real mixer with high gain output, still in a small form factor.


Hi Denny. I assume you are referring to Mixpre-D? Sound devices have recently launched Miexpre-3 and 6 but both doesn't have XLR output.

Re: Please help! Atem TV HD soft audio level

PostPosted: Tue May 02, 2017 5:06 am
by Andy Coulthurst
I'm using a Behringer XR-12 with the Atem HD , works very well , and includes many effects such as noise gates and reverbs. Also can place mono sources in the stereo field. Has built in recorder / player.
Downside ( depends on usage ) are no physical controls ( but has iPad/Linux/Windows apps )

Re: Please help! Atem TV HD soft audio level

PostPosted: Tue May 02, 2017 6:05 am
by Denny Smith
Yes Kenny, I was referring to the original MixPre or the D. Mthe new series are aimed at DSLR type market, where an external recorder is needed.
Cheers

Re: Please help! Atem TV HD soft audio level

PostPosted: Tue May 02, 2017 7:52 am
by Tom_Bassford
I'd just get a small format sound desk. http://www.allen-heath.com/ahproducts/zed-10/ is cheaper than the sound devices preamp but has a hell of a lot more features.

If you can avoid Behringer then do so. That said if you have no money then http://www.music-group.com/Categories/B ... 00/p/P0207 costs less than a night in a pub and would do the job of boosting your level.

Re: Please help! Atem TV HD soft audio level

PostPosted: Tue May 02, 2017 8:38 am
by Andy Coulthurst
I know that Behringer has had a less than stellar past.
My usual problem with behringer in the past was low quality noisey controls (analogue domain)
The virtual mixing desks do away with that.

I would be interested to know reasons to avoid behringer nowadays - I was pleasantly surprised at £220 instead of £1200 for one of the above suggestions.

Re: Please help! Atem TV HD soft audio level

PostPosted: Tue May 02, 2017 8:42 am
by Tom_Bassford
It's cheap crap designed with low cost being above all else.

There better than they once were but it's still ultrabudget and thus not as good as better built more expensive rival products.


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Re: Please help! Atem TV HD soft audio level

PostPosted: Tue May 02, 2017 9:02 am
by Marcus Strandepil
Andy Coulthurst wrote:I know that Behringer has had a less than stellar past.
My usual problem with behringer in the past was low quality noisey controls (analogue domain)
The virtual mixing desks do away with that.

I would be interested to know reasons to avoid behringer nowadays - I was pleasantly surprised at £220 instead of £1200 for one of the above suggestions.


I think a lot of people judge Behringer for the quality they had before. I use an X32 in my flypack and it both sounds fantastic and is easy (= fast) to work with.


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