Blackmagic Forum

Mon Sep 30, 2019 9:30 pm

It's a little unclear from Grant's initial presentation and then the specs on the BMD website what the input capabilities are on the two auxilliary audio inputs on the mini. Most everywhere it's just referred to as a mic in but he mentioned plugging an audio player into it to play music before a stream starts which would typically be a line-in / preamp bypass use case.

I'm wondering if there will be a way to designate those inputs as line level because I'm really looking forward to ditching all my Camlinks to run my multicamera stream but I am also using external XLR audio into a vocal processor and currently running that line in to a DI box and then using that as an audio source in OBS. I would love to be able to instead run a line-out from my processor setup into the ATEM Mini which would allow me to mute the mics from the switcher instead of having to mute it in OBS. It would also remove another piece of gear from the chain that is somewhat flaky anyhow (the DI box).

Wed Oct 02, 2019 5:30 pm

Until the Mini ATEM gets released, it is hard to say, but the BMD website ( https://www.blackmagicdesign.com/products/atemmini) lists the audio in as:

Total Audio Inputs
2 x 3.5mm stereo mini jack.

Normally if it was just a mic input, it would be listed as a Mic in. So it looks like it is both, selectable in the ATEM software.
Cheers

Thu Oct 03, 2019 3:33 am

Hello everyone. I am told that when released these inputs will be selectable between mic or line. Since they are balanced I do not know what level line will be so that information will wait until release. I hope this helps

Regards. Gary

Thu Oct 03, 2019 4:43 am

Yes, yes it does, thanks Gary.
Cheers

Fri Oct 04, 2019 12:35 am

Wow! That's great news. Balanced line-in even. Thanks for the clarification Gary. This thing is going to be brilliant.

Fri Oct 04, 2019 1:19 am

I am very sorry. The inputs are unbalanced. I would like to blame my phone but it is my mistake. 3.5mm stereo is unbalanced. Sorry for any confusion.

Regards. Gary.

Fri Oct 04, 2019 6:01 am

That is actually good news Gary, it means the Mini will work,with a Sound Devices MixPre, from the MixPre D to the new MixPre 2s.
Cheers

Mon Jan 20, 2020 1:37 pm

Good day

I would like to know if anybody can clarify the mic input on the Mini, as the last post on this topic was before the release of the Mini.

Just to mention:
In the manual it states that you can connect a music player, as well as a mic.
On the website it states "work with professional microphones"

My question is can it be configured as the following:
1. Stereo line input
2. BALANCED line/mic input (mono) - from a mixing desk, or a dynamic mic.
3. BALANCED line/mic input with phantom (mono) - condensor mics

The connector is a 3.5mm stereo connector, but that means it is a 3.5mm TRS connector that technically can receive a stereo line (from a music player), but can it also be configured as a balanced audio input (Mono input with Ground, Positive and Negative)

Any clarification would be appreciated

Kind regards

Mon Jan 20, 2020 6:17 pm

Hello Everyone. I can provide some unofficial observations. Both 3.5mm inputs on the ATEM mini may be configured as Unbalanced Stereo "Mic" or "Line" levels. These levels are more HiFi and PC type levels, not audio console type levels. When in Mic mode, the expected level is around -55 dBu. When in Line mode, the level is around -15 dBu. They are always Unbalanced Stereo. There is no phantom power in these lines. I would recommend converting various microphone types to the line level to make it easy. While there are many ways to do this, I recommend properly converting Balanced signals to Unbalanced using a transformer or some proper active converter amplifier. Simply wiring different pins from a balanced signal to an unbalanced input will generally have issues that do not need to be there. I hope this helps.

Regards, Gary

Mon Mar 30, 2020 7:03 pm

I'm streaming live music performances on Youtube and FB. I'm looking for a audio/video switcher to use with multiple cameras and the ATEM Mini looks like the perfect affordable solution.

I have two questions about the audio lines in.

#1. Will I be able to use an external analogue mixer to mix multiple mics and line level instruments and bring the stereo output of the analogue mixer into the mic/line inputs of the Mini?

#2 Will the Mini act as an HDMI/Audio inserter to keep my audio and video in sync?

Thanks!
Rod

Mon Mar 30, 2020 9:20 pm

Hello Rod. You can use an external mixer to feed the Line inputs on the ATEM Mini. Keep in mind the line inputs are unbalanced stereo at HiFi levels at about -15. So be careful to not overload the inputs and also be careful of the grounding.

There is no delay compensation in the Mini. The Mini will have varying video delays up to a frame. The audio will pass through with minimum delay. The sources will typically have 1-3 frames of delay so if your audio console has a delay adjustment, set it to about 2-4 frames.

Some users prefer to feed the audio console to a camera input which will more closely keep the audio in sync.

I hope this helps.

Regards, Gary

Fri Apr 24, 2020 2:59 pm

Reading this thread with much interest.
When I use AUX from mixer to Mini Line in, the audio sounds as if it has a warble/slight echo sound.
I checked the levels in the Atem Audio and they are in the green.
Using OBS to stream, and there too, they are in the green.
When I stream or record, the audio sounds bad. Even monitoring the audio with headphones, it sounds unusable.

Any suggestions would be great. I am using a XLR to stereo 3.5mm jack for connection. Mixer is Behringer XR18. All the levels checked to not be high. Adjusting the Aux output up and down only decreases/increases the volume, but the quality of the audio has not changed.

HDMI from the camcorder is fine, but we all know how those mics sound.

Fri Apr 24, 2020 5:20 pm

Trying to send a Balanced +dB signal via a direct wired xlr to stereo mini plug is your issue. See Gary’s comments in his previous post. You need to use a dBox or similar converter to change the impedance and level of the balanced XLR signal to an unbalanced hiZ type signal used by the ATEM Mini.
Cheers

Fri Apr 24, 2020 6:07 pm

Tony P wrote:I am using a XLR to stereo 3.5mm jack for connection. Mixer is Behringer XR18. All the levels checked to not be high. Adjusting the Aux output up and down only decreases/increases the volume, but the quality of the audio has not changed.

OK, we need to learn the fundamental differences between balanced and unbalanced audio. I'm a great audio teacher but this isn't the place. Look these up and learn the difference. Then you will understand what follows.

If your cable is pre-made and has a single XLR on one end, and a stereo 3.5mm on the other, this is NOT what you need to connect these 2 devices. Just because the connectors fit on each end doesn't mean it's going to work properly. In this case the result is your audio being presented as an out-of-phase stereo source to the ATEM mini, because the + phase of the balanced audio goes into the ATEM left input and the - phase of the signal goes into the ATEM right input. What you get is very thin sounding audio because things start to cancel out, or on single speaker device like a phone a total cancellation altogether.

The best solution for this involves something like the Henry Engineering MatchBox, or the Rolls Pro Match. These devices take balanced XLR in, and generate unbalanced signals coming out. You can then use a regular off the shelf 2xRCA to 3.5mm cable to the mini input.

Another solution, while not exactly proper but works fine is a cable wired as follows...

For Stereo XLR to ATEM
L XLR pin 1 wired to 3.5 sleeve
L XLR pin 2 wired to 3.5 tip
R XLR pin 1 wired to 3.5 sleeve
R XLR pin 2 wired to 3.5 ring

For Mono XLR to ATEM
XLR pin 1 wired to 3.5 sleeve
XLR pin 2 wired to 3.5 tip and ring

Either option will improve your XR18 feed into the ATEM immensely I'm sure.

Fri Apr 24, 2020 6:13 pm

Good info Greg, but I have given up on trying to “educate” the streamers, most just want an immediate solution. But maybe some of your concepts might just sink in. :roll:

BTW, Great examples of active DBoxes.
Cheers

Fri Apr 24, 2020 10:42 pm

Thanks for the replies and making clear the balanced and unbalanced aspect that I am facing and the solutions to the problem.

I read Gary's reply very carefully.

The only thing we would like to stream is the church service. We can stream quite easily with a cellphone, but we all know the quality of the video and audio output.

I have been mixing our worship team for many years now, going from analog to digital. Of course a quick solution is something that everyone wants, but I ask because I don't know the answer. So I asked here to get more knowledgeable and correct information and solutions. If someone doesn't want to share their knowledge, that's up to them. But I am thankful to those that do. I am an advanced video editor that has been editing since the Amiga/Toaster days of doing a/b roll, and don't mind helping those that need help. We all started without knowledge and look back at those that helped us along the way. At least I do.

I have a ART DI box on stage and will try that. It is passive.

Sat Apr 25, 2020 11:46 am

Talking Behringer, the "Shark" does a great job delaying audio for the Mic inputs.

Sat Apr 25, 2020 6:44 pm

Again, thanks for all the input. It clarifies a lot of things.
I live in Poland and can not find the Rolls Pro Match. But I can order from Amazon the ART CLEANBoxPro. It seems to do what the Rolls does.
Would this be a good choice?

Sun Apr 26, 2020 6:32 pm

I am new here and learning. Could the ART CLEANBoxPro Dual-Channel Level Converter be used between the output of an audio mixer and the audio input (mic) jacks of the ATEM Mini Pro, without risk to the ATEM Mini Pro, please? If no, what about a Behringer Signal Direct Box (DI800 V2). I have no idea what an unbalanced hiZ type signal is. Thank you.

Wed Aug 26, 2020 5:01 pm

Brand new here; first post!

We recently bought an ATEM Mini Pro for use in our basement jam studio where we got into live streaming various bands during "lockdown". This thread is EXTREMELY useful, as we encountered issues from me not taking the time to realize my mixer output (Zoom L20) is BALANCED 1/4" TRS stereo, and the ATEM is UNBALANCED 3.5mm (1/8") stereo.

We were dialing in a mix on the board, listening on headphones, sounds good, stream to ATEM; and then all sorts of audio issues. Some people could hear it fine; others heard nothing; others (my phone) heard the mix badly distorted - and DEAD giveaway to what was going on - lacking in ALL bass. Or dead silent. (phase inversion error due to balanced mixer output to unbalanced ATEM input)

Now; we run it loud down there, and mic EVERYTHING. Bass DI and bass cab mic; kick mic, snare mic, and three drum overheads (left,center, right). So - no bass? Seemed weird.

It was phase inversion for sure. Due to using a single 1/4" TRS to 1/8" 3.5"mm stereo mini jack cable without any signal conversion between mixer and ATEM.

When I finally confirmed that; I got in my car, put on the mix. All the bass is gone! Then, I panned the car stereo hard left. All the bass is back! There is the kick drum and bass guitar.. Pan center; bass gone. Pan hard right - bass comes back.

SO. I just (today) ordered that ART aforementioned; Sweetwater had a demo model.

Have some various interconnect cables as well; dual XLR to 3.5mm stereo; dual RCA to 3.5mm stereo, etc.

Also looked at the Radial something or other that was like $260. I guess if the ART doesn't get it done, I'll look at the Radial next.

Cheers everyone!

Wed Aug 26, 2020 10:01 pm

I don't want to bore anyone but there are many new people in the group. Just to offer some simple information. It is important to use caution when converting or wiring from Balanced to unbalanced audio. As an example, taking a Balanced Mono TRS to an unbalanced Stereo TRS (like the ATEM Mini), wiring T-T, R-R and S-S is the exact wrong thing to do. The listener in Stereo will hear some audio with a funny feeling in their head. The listener in mono will hear mostly nothing. So don't do that.

There are two methods to just using wires that may produce some results, both of which I do not recommend.

1. Phone Tip to 3.5mm Tip and Ring. Phone Ring and Sleeve to 3.5mm Sleeve. This provides an unbalanced (sort of) signal to both channels of the ATEM Mini. The problem with this one is it shorts out one side of the balanced driver from the audio console. While this may be tolerated it is not recommended and may cause distortion and noise.

2. Phone Tip to 3.5mm Tip and Ring. Phone Sleeve to 3.5mm Sleeve. This will only work when the balanced driver from the audio console is active relative to ground. Doesn't hurt anything but still may not work as it depends on the audio console wiring.

Both of these methods are prone to hum and noise interference and ground loops. So personally, I would stay away from them. But if it works, Great. I've done it before too.

The best method is some form of isolation which can be either active or passive. Active is electronics and may be unnecessary just to convert a good signal. My preference is a transformer isolated device. This (to me) is the best method. The balanced Phone (or XLR) connects to one side of the transformer providing a proper balanced feed. The other side of the transformer would be wired one leg to both Tip and Ring of the 3.5mm and the other leg of the transformer would connect to the Sleeve of the 3.5mm. This method will provide complete isolation of the signal eliminating ground loops and outside interference. In this case the audio level on the balanced side must be brought down considerably since it is usually +4 at the console and the ATEM Mini is -10. Feeding tone from an audio console is an excellent method to verify that the levels are correct and matching meters on console and ATEM.

The above just covered a mono source. With stereo sources there would be two transformers. One output to the 3.5mm Tip and the other to the Ring. The second leg of both transformer outputs would connect to the Sleeve of the 3.5mm. Most of the isolation boxes mentioned do just this.

If your audio console or source is already unbalanced, direct connection may work but some users experience ground loop hum and noise. This is common where different power sources are used and equipment is connected in this way. So an isolation box is even useful in this situation. Better to have something on hand just in case. Traveling shows are notorious for ground loop issues so having a bunch of transformers is a handy tool in the box.

I hope this was helpful. Stay safe everyone.

Regards, Gary

Thu Aug 27, 2020 12:26 am

I have a Mini Pro ISO on the way and I'm planning to feed the audio from a Universal Audio Apollo interface. The interface specifies the following:

"The individually addressable line-level analog outputs use balanced ¼” TRS phone
jacks. Unbalanced ¼” TS cables can also be used. The Line Outputs are DC coupled.

The Line Outputs can be configured in adjacent pairs to use either –10 dBV or +4 dBu
reference levels."

Given that, am I correct that a converter box is unnecessary and a simple passive cable like http://amzn.com/B00ZKM3SHK will give high-quality results?

Thu Aug 27, 2020 12:50 am

You will only need isolation if you have a ground loop. Always handy to have.

Regards. Gary

Thu Aug 27, 2020 12:59 am

Thanks. I think if I have ground loop issues my next best bet would be to use the S/PDIF digital output with a small external D/A converter to provide the unbalanced analog signal.

Wed Sep 09, 2020 1:25 am

A user has discovered a workaround to the phasing issue of connecting balanced mono out from a sound board into the ATEM's balanced in.

In the Split Audio settings, check (as in tick) the relevant input port. This will split the audio into L/R and remove the phasing issue.

Wed Sep 09, 2020 10:48 pm

Hi Gary,

Do you have an example of a transformer isolated device that you'd recommend? Would a digital-to-analog converter provide the proper signal for the mic input for the ATEM Mini Pro? I'm trying to connect my Focusrite 18i8 (3rd gen) audio interface (which has 4 XLR mics plugged into it) to my ATEM and am trying to figure out the best way to do it.

Connecting the headphone output to the mic input seems to result in background hum and occasional audio distortion which I think may be due to the balanced-unbalanced issue that you were talking about.

Thanks in advance for your help.
Bauback

Fri Sep 25, 2020 9:20 am

@Gary
I am using a 1/4 TRS (from aux send output) to stereo 3.5 mm jack for connection from a Yamaha MX16GU mixer to atem mini. In OBS I can only hear sound coming from the left side. How can I balance the sound. I saw earlier comments about using an isolation transformer, but what does that mean when using a 1/4 cable?

Fri Sep 25, 2020 2:12 pm

1/4" TRS can either be used for unbalanced stereo or for balanced mono. A cable with a single 1/4" TRS connector on one end and a single 3.5mm TRS on the other end is typically meant to go from an unbalanced stereo output to an unbalanced stereo input. It sounds like you're using it to connect an unbalanced mono output to an unbalanced stereo input.

If you want stereo you don't necessarily need an isolation transformer but you should probably get a cable with dual 1/4" TS plugs on one end (something like this one: http://amzn.com/B07PJVG2RC) and connect two output channels from the mixer into one of the ATEM stereo inputs. If you only want mono and just want it panned to the center then the cable you have may work. You can configure the ATEM Mini to split the stereo inputs into separate channels in the ATEM Setup app:

Then you would pan the channel that's getting input to the center and mute the other channel in ATEM Software Control:

Fri Sep 25, 2020 4:53 pm

LHTaudio wrote:I can only hear sound coming from the left side.

As the input is Unbalanced Stereo, you will need to find a way to provide such a signal to the ATEM

Use two mixer outs, a couple of Y-connectors...something.

Fri Sep 25, 2020 6:45 pm

Thank you. I will try the cable with dual 1/4" TS plugs.

Fri Sep 25, 2020 9:59 pm

Hello Mark. I thought I'd look up the Yahama specs. I found this on their site:

MONITOR OUT [L, R]
GROUP OUT [1 - 4]
AUX SEND [1 - 4] 150Ω 10kΩ Lines +4 dBu
(1.228 V) +20 dBu
(7.750 V) Phone jack *4
(Impedance Balanced)

This means the Send output is Mono Balanced Line level. The ATEM Mini is Unbalanced Stereo HiFi level. Wires alone "may" work but probably won't and the level will be +14 dB higher. You should consider some form of transformer isolation to properly change Balanced to Unbalanced. The level would be adjusted lower at the Yamaha to prevent distortion at the Mini end. Since this is a mono feed you can do one of two things. Either wire the converted (unbalanced) signal to both Tip and Ring of the 3.5mm plug, or you can put the ATEM Mini in Split Mono Tracks and simply take that mono audio and pan it to the middle. I hope this helps. Stay safe.

Regards, Gary

Sat Sep 26, 2020 8:17 am

OK I ran a test using +4 dBu outputs from my mixer connected to my ATEM Mini Pro ISO line input using a simple passive 1/4" TS to 3.5mm TRS cable (this one to be exact: http://amzn.com/B00ZKM3SHK). No isolation transformers involved.

Here's the original test track which I played through the mixer into the ATEM:
https://soundcloud.com/steve-kanefsky/a ... 1FVXi9Up50

And here is the recording I made from the ATEM via the USB-C output into QuickTime:
https://soundcloud.com/steve-kanefsky/a ... 6C5VlgWSIV

Keep in mind the second one had to go through two lossy decompression/recompression cycles between the ATEM and SoundCloud, and I would wager that has more impact on the sound quality than the +4 dBu output with the passive cable.

Mon Sep 28, 2020 4:01 am

Gary,

IN this case what would be an appropiate isolation transformer to use to convert the signal. Keeping in mind that I am running the 1/4 cable out of the aux send?

Gary Adams wrote:Hello Mark. I thought I'd look up the Yahama specs. I found this on their site:

MONITOR OUT [L, R]
GROUP OUT [1 - 4]
AUX SEND [1 - 4] 150Ω 10kΩ Lines +4 dBu
(1.228 V) +20 dBu
(7.750 V) Phone jack *4
(Impedance Balanced)

This means the Send output is Mono Balanced Line level. The ATEM Mini is Unbalanced Stereo HiFi level. Wires alone "may" work but probably won't and the level will be +14 dB higher. You should consider some form of transformer isolation to properly change Balanced to Unbalanced. The level would be adjusted lower at the Yamaha to prevent distortion at the Mini end. Since this is a mono feed you can do one of two things. Either wire the converted (unbalanced) signal to both Tip and Ring of the 3.5mm plug, or you can put the ATEM Mini in Split Mono Tracks and simply take that mono audio and pan it to the middle. I hope this helps. Stay safe.

Regards, Gary

Mon Sep 28, 2020 7:41 pm

Most Balance in/unbalanced put DBoxes, wither passive or powered will work. I prefer to sue the Active powered D Boxes. There are many different brands, but get one intended for professional use.
Cheers

Mon Sep 28, 2020 7:43 pm

Hello,

We are running Mono XLR (X32 out) to ATEM Mini Pro mic 1 input and have a cable with:
XLR pin 1 wired to 3.5 sleeve
XLR pin 2 wired to 3.5 tip and ring

However, XLR pin 3 of the cable is also wired to sleeve. Is this acceptable, or would breaking that pin connection help?

Thanks.

MambaFiber.com wrote:Another solution, while not exactly proper but works fine is a cable wired as follows...

For Stereo XLR to ATEM
L XLR pin 1 wired to 3.5 sleeve
L XLR pin 2 wired to 3.5 tip
R XLR pin 1 wired to 3.5 sleeve
R XLR pin 2 wired to 3.5 ring

For Mono XLR to ATEM
XLR pin 1 wired to 3.5 sleeve
XLR pin 2 wired to 3.5 tip and ring

Either option will improve your XR18 feed into the ATEM immensely I'm sure.

Mon Sep 28, 2020 9:46 pm

As Greg mentions, the above cable wiring schemes will work most of the time. The times they won't work would be based on the internal circuit of the sending device probably too complicated to mention here. So if you like to make cables (like I do), then these will work fine mostly. If there is a ground loop issue, then these cables will not work. In that case one of the above mentioned transformer or active boxes will work. I would find it always handy to have some isolation devices around just in case. Especially if you are doing varied setups at different venues. Grounding is so important and fragile in unbalanced setups. Stay safe.

Regards, Gary

Thu Oct 22, 2020 10:59 pm

Hello everyone My mixer is à Pioneer DJM 750mk2 the MASTER2 output is rca connector and provides unballanced. Is it okay if I buy a RCA to mini jack 3.5 TRS?

Wed Oct 28, 2020 8:53 am

Denny Smith wrote:Most Balance in/unbalanced put DBoxes, wither passive or powered will work. I prefer to sue the Active powered D Boxes. There are many different brands, but get one intended for professional use.
Cheers

First post
Feel silly....
Settings on ATEM mini pro iso
3 HDMI input from camera
1 1/8 jack from MG10 mixer

I am running a wireless mic and one regular mic in a MG10 mixer.
Output available for me( +4dBu):
Aux send
Monitor out (L & R)
Strereo out (L & R)
I understand I need a DBox.
I tought of using the Aux send signal with a Pro-Iso box (Radial eng) by getting a 1/4/XLR cable and plug it into one of the input and use the 3.5 MM plug output to the ATEM mini pro ISO
Not sure anymore it is a good idea...
What is the best move for me?
I don't mind to buy passive or active DBox

Thanks to all for your time

Steve

Wed Oct 28, 2020 3:11 pm

Your strategy looks OK if the Aux send is post-fade and everything is center panned. I think you can configure the ATEM Audio channel for mono in to stereo. Otherwise use the stereo outs to your box and then a Y cable.
There is a $30 passive box that works great with either method - the Pyle Mini Hum Eliminator (2 channel). Has both XLR and 1/4 inch in/out.

Thu Nov 12, 2020 4:26 pm

Informative thread.

Most of us don't know enough about audio to deal with what would be a simple issue to an audio person.

I was live-streaming a service and had the soundboard xlr output plugged into my Zoom H4N Pro xlr. There is no pad on the XLR of the Zoom H4N, so I connected a -20 Db attenuator, but it turned out not to be enough. I had no access to the soundboard, so I had to make any adjustments on my end.

Unfortunately, I'm live streaming for events, so if I have the right gear at one location, I may not have what I need at another one.

I've added a -50 attenuator in case this happens again, but it looks like it would be a good idea to get a DI box for the next issue I would not be prepared for.

Sat Nov 14, 2020 12:57 am

While we've retired the Zoom since moving to the ATEM, we had been driving our mixer output (small Mackie mixer) to a Zoom h4n pro.
The secret is - do *not* plug in to the Zoom using an XLR input - get an XLR-to-TRS cable (or TRS to TRS, depending on your mixer, I guess) - using the TRS inputs to the Zoom takes the preamp out of the circuit: we did not need any external attenuators.
Hope this helps, if only for reference.
Tom

Sat Dec 19, 2020 10:28 am

Hello,

I am also looking for a stable solution to connect a mixing desk to the ATEM pro mini.

My proposal which I'll try next week (awaiting delivery...):
I have a Behringer x32. I use 2x (balanced) XLR-out (OUT1 & OUT2) and I route these outputs to be the same as the main mix (on OUT7 & OUT8 - stereo & balanced). This results in a stereo balanced "clone" of the main output and leaves me the possibility to send the same mix to the FOH as well.

From there, I go to a Radial J-ISO. I connect the output of the J-ISO with a RCA>3,5mm minijack to the input of "mic1" on the ATEM pro mini.

In the software control, I change the input from MIC1 from "mic" to "line".

The documentation is not really clear about the mic-inputs. When I look at this screenshot:

, it seems the mic-inputs are stereo. In that case my solution should work: am I correct?

Thanks in advance,

Thomas Hoste

Tue Dec 22, 2020 2:18 pm

Yes it should work. Essentially it is the schema I am using. Both mic and line level inputs are unbalanced stereo.

Wed Dec 23, 2020 8:53 am

Gary Adams wrote:I am very sorry. The inputs are unbalanced. I would like to blame my phone but it is my mistake. 3.5mm stereo is unbalanced. Sorry for any confusion.

Regards. Gary.

you could do the substraction in the fpga between "left" and "right", that would give a balanced signal

Thu Dec 24, 2020 5:08 pm

Some of the best work in system interconnect has been done by Rane. Their paper on Sound System Interconnection can be found on their website by Googling "Rane Note 110"

I carry a copy in my tool case and test kit.

Tue Jan 19, 2021 1:12 am

I'll be testing out a Radial J-iso with my ATEM Mini Pro Iso very soon.

So far I've just been using a cheaper Rolls +4 to -10 converter ( with "ok" results ) to get my Mixer ( Presonus 24R ) down to a single unbalanced stereo line.

Has anyone here tried the Radial yet? I am excited because it has a Jensen xformer in it so should be nice and clean. Plus the outputs are parallel, so in theory I could hook up my head phone amp as well and have a true monitor path at the last stage before the ATEM.

I'm usually monitoring between the mix right before the ATEM, and on BT earbuds I'm used to listening to my phone on for translation.

Anyway I just wanted to throw the Radial name out there in case anyone's using it already and has any tips for calibration.

Thanks!

Sat Jan 30, 2021 3:33 am

["OK, we need to learn the fundamental differences between balanced and unbalanced audio. I'm a great audio teacher but this isn't the place. Look these up and learn the difference. Then you will understand what follows..."

"Good info Greg, but I have given up on trying to “educate” the streamers, most just want an immediate solution...."]

I just registered here, and had to promise not to make abusive posts. You two are clearly more interested in jamming up people who ask questions than helping them. For all of your clearly superior knowledge, you haven't helped anyone. I would warn you once and then send you packing, but it's not my forum.

For the record, the reason a company makes a product at a lower price point like this is to attract people who don't have 5-6 figure production facilities already. Most of us are here because we are content creators, not because we want to be sound engineers. We produce videos for social media, and quality audio is a must. And most of us would like to make multi-camera videos, and the ATEM products look like a good way to do that. But we see two 3.5mm jacks for audio in, and that generally is not the audio quality we look for - which is why we are trying to find a solution that lets us use XLR mics in our hopefully new multi-camera productions.

So, yeah, we are looking for an immediate solution. That's exactly what we want. We want to know how to use this product to solve a need that we have. But it really isn't an immediate solution because, like me, most have probably read until their eyes are bleeding. I'm pretty sure I haven't done anything wrong.

We have invested a significant amount of money into our audio and we would like to be sure we can make that a part of our future multi-camera productions. Nobody here wants a silly cable - we want an answer to a need. I would hope someone from Blackmagic would see and just give an answer to the need, even if the OP asked the wrong question.

Fri Feb 19, 2021 10:35 am

steve@parsonsaudio wrote:I'll be testing out a Radial J-iso with my ATEM Mini Pro Iso very soon.

Has anyone here tried the Radial yet? I am excited because it has a Jensen xformer in it so should be nice and clean. Plus the outputs are parallel, so in theory I could hook up my head phone amp as well and have a true monitor path at the last stage before the ATEM.

Oh yes, very pleased with the results! Very clear audio!

Wed Mar 17, 2021 6:42 am

steve@parsonsaudio wrote:I'll be testing out a Radial J-iso with my ATEM Mini Pro Iso very soon.

Steve, did you end up testing the J-ISO and if so how did it work out?

Wed Mar 17, 2021 7:59 am

2xbass wrote:
steve@parsonsaudio wrote:I'll be testing out a Radial J-iso with my ATEM Mini Pro Iso very soon.

Steve, did you end up testing the J-ISO and if so how did it work out?

I ended up returning the J-ISO without even opening the box because I'm getting such excellent results using a passive 1/8" TRS cable to dual 1/4" TS cable into my UAD Apollo interface. The Apollo supports both balanced and unbalanced 1/4" connections and the mixer is within a couple feet of the ATEM so I realized it was kind of silly to go through a transformer.

It would make more sense if you have to traverse a long distance and you can place the J-ISO near the ATEM and use a balanced cable to cover most of the length. It would also make more sense if your mixer/interface can't support unbalanced connections or if you're getting noise on the connection that you can't seem to fix otherwise for whatever reason.

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