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Live Streaming problem: sound in left ear only

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Live Streaming problem: sound in left ear only

Postby CyrilWohrer » Sat Nov 07, 2020 6:26 pm

Hi there,
I did my first Facebook Live today, using my Sony ZV-1 camera and my Shure Sm7, both of which I plugged into my MacBook Pro directly. Aside from the synching issue, I encountered a *big* problem, namely that the sound was recorded only in the left ear. How can I fix this problem? How can those watching my Live hear me in both ears, not just the left?

Thanks,

Cyril
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Re: Live Streaming problem: sound in left ear only

Postby The Elf » Sat Nov 07, 2020 6:46 pm

Hi Cyril, and welcome. :thumbup:

We are going to need a lot more information to begin trying to help.

For a start, how is all your equipment connected?

Are you aware that one mic can only give a mono signal? The SM7 is a standarrd mic with an XLR output, so you must be going via a mic pre-amp of some description and then to USB - how? How are you handling the mic to pan it to the stereo centre?

What software are you using to handle the audio mix?
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Re: Live Streaming problem: sound in left ear only

Postby shufflebeat » Sat Nov 07, 2020 8:41 pm

I've been exploring OBS recently and find the separate channels of my interface are hard panned L/R.

I've considered using a small mixer to take care of the stereo field but have to explore further to see what options might be available within the software.

There is a mono/stereo in audio prefs apparently but that's a bit drastic for my use.
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Re: Live Streaming problem: sound in left ear only

Postby Mike Stranks » Sat Nov 07, 2020 9:06 pm

Welcome from me too! :thumbup:

I know nothing about Apple anythings, but I'll take a stab at what might have happened...

Did you perchance connect your SM7B to the computer using a lead like this:

Image

or this:

Image

If the leads aren't wired correctly - and I find that XLR to anything often aren't - then that would account for the left-hand channel only sound.

If you are connecting like this then you need to make, or get someone to make, a lead with pin connections as follows (using a 3-pin XLR female socket and a 3.5mm 'stereo'/TRS mini jack plug):

XLR pin 1 to the sleeve of the jack-plug;
XLR pin 2 to the tip AND ring of the jack-plug;
XLR pin 3 to the sleeve of the jack plug.

Of course, if you're not connecting your mic in this way then I refer you to The Elf's earlier post! :lol:
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Re: Live Streaming problem: sound in left ear only

Postby shufflebeat » Thu Nov 19, 2020 10:01 am

Looks like Cyril hasn't checked back but just in case anyone else has the same issue this is my mini exploration of Voicemeeter copied from elsewhere on the forum which I suspect would have informed his quest:

Well, I've had a play with Voicemeeter tonight and, unless I've missed something fundamental, it seems pretty straightforward. Everything's labelled logically and does what it's told.

After installing the laptop needed a restart which always gives me the shivers but no issue. I sparked up again with the SSL2+ hooked up and as it is the default driver when available VM grabbed it for audio and the hardware inputs were already assigned when I started VM.

The VM driver showed up as an audio device in Reaper which in turn appeared as the virtual input in VM.

Bus A goes back to the SSL for headphone or main monitors and bus B goes wherever I send it within the laptop, in this case to Zoom.

The only thing I found strange was that the separate mic channels didn't seem to be default panned hard left and right as they were in OBS but "mostly left" and "mostly right". I hit the "mono" button on both of them anyway so it was irrelevant. The panel above the mic channel fader had me scratching my head for a few minutes because it's not a pan control as it appeared to me but a kind of XY joypad for tone settings, very neat but bypassed.

There's a pretty nifty looking set of audio tools that came along with the installation for further tweakage. I fired up the standalone 15 band EQ which can be assigned to either bus at the nudge of a button. Sounded perfectly adequate.

No real dramas with Reaper, VM and Zoom all running together. I tried incorporating OBS as well for a chuckle and everything seemed to cooperate until my little old laptop ran out of steam.

It's a 9 from me. I'm only withholding the last 1 in case time reveals an issue and because I'm a grumpy old sod.
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"Dance, dance. wherever you may be, for I am the Lord of the damp settee..."

Do yourself a favour, wear earplugs at gigs.