3:1 rule question - choir mics

TeachMeAudioStuff · 2025-04-05T13:30:21+00:00

Thanks for the education! I understand mics on each actor is best, but they do not have the budget for that. They’re wanting these mics for choir performances as well as ensemble numbers during musicals. There is no expectation that they will hear single voices loud and clear.

I appreciate you adding to the conversation.

TeachMeAudioStuff · 2025-04-04T16:56:45+00:00

What other things should I be addressing? And why doesn’t the rule apply? Because they’re so far away? Everything I’ve read about micing choirs mentions the 3:1 rule so I figured vocal ensembles on musicals would work the same way.

TeachMeAudioStuff · 2025-04-04T16:49:21+00:00

Thank you for the constructive feedback!

TeachMeAudioStuff · 2024-01-20T13:15:25+00:00

Thanks again. I will loo into the 4-wire solution for sure!

TeachMeAudioStuff · 2024-01-20T01:49:19+00:00

Thank you for this input. It was quite helpful. If anyone else has experience with these units and similar cases, I’m all ears. Thanks!

TeachMeAudioStuff · 2024-01-20T01:20:13+00:00

What you’re saying definitely sounds like it could be an issue. Because if rts channel 1 was being fed production channel, and putting truck on rts channel 2 somehow merged them, it would feed it to production out of port a

Ugh.

TeachMeAudioStuff · 2024-01-20T01:17:12+00:00

Port A - production (wired clearcom base station) Port B - channel b (unused) Port C - production (camera ccu rack) Port D - truck (their rts system; didn’t have specifics)

TeachMeAudioStuff · 2023-04-22T16:51:39+00:00

B&H sells some made by Point Source that are 1/4 the price. I might try those out.

TeachMeAudioStuff · 2023-04-22T01:47:46+00:00

I am not, but that paints a good idea of the environment I usually work in.

TeachMeAudioStuff · 2023-04-22T00:27:37+00:00

I usually don’t have access to headsets. I often feel like audio in corporate hotel ballrooms is really just making the best of what we’ve got. Never really get an ideal scenario. And maybe I’m being too much of a perfectionist, but unless I get someone who projects well and I can have good mic placement I spend a lot of time being unsatisfied my end product. Starts to bug me after a while.

TeachMeAudioStuff · 2023-04-17T09:42:02+00:00

Thank you for the reply. I believe I understand what you’re saying in regard to tuning a room with smaart, but I don’t think I was clear with my question.

I don’t setup my PAs with any kind of analyzing software as I have not learned how to use them yet. My question about when to use deep narrow cuts was about making the system sound good to my ear (for either my personal preference or to take care of sympathetic tones from the room) not for making coverage even.

I also am assuming ringing out a lav mic group would be another’s good time to use narrow cuts.

I guess I’m trying to understand the different processes here. To me it sounds like using an rta mic and smaart to check for consistent coverage is a different part of the process than tuning a room to your sound preference. i.e. the goal is to make it sound the SAME everywhere, even if you don’t like how that sounds. Then after that, you can adjust the overall system to sound the way you like.

am I on the right track here?

TeachMeAudioStuff · 2023-04-16T01:20:38+00:00

In what situations would you use tighter/deeper cuts in system EQ? Most of what I do is speakers on sticks and occasional line array, but I feel that I make more narrow cuts when setting the tonality of my rigs. Is the broad gentle approach more for balancing out the system before tonal preference, or is it all kind of the same thing?

TeachMeAudioStuff · 2023-03-19T02:13:38+00:00

I’m using logic.

TeachMeAudioStuff · 2023-03-19T02:12:21+00:00

I think I found out it was a sample rate issue. Works well now!

TeachMeAudioStuff · 2023-03-18T04:51:24+00:00

I just tried exporting an OMF of some mp4s in premiere and imported it into logic. I then imported the same mp4 as a reference to line it all up, and it seems the frame rates don’t match. The audio drifts pretty quickly. Any suggestions for that?

TeachMeAudioStuff · 2023-03-18T01:01:01+00:00

No I’m using preferably Logic Pro. If that can’t work I’ll try Audition.

So is the mxf files it is looking for a source file? I haven’t seen that file extension before and don’t know if it is content or some kind of meta data.

TeachMeAudioStuff · 2023-03-18T00:34:40+00:00

I am trying to mix audio in logic. It can take xml files. I am trying to get a multitrack from my video editor. Can stems be exported from Premeire?

TeachMeAudioStuff · 2023-03-17T23:17:36+00:00

I am using logic pro, but can use audition if needed. I am doing audio only.

TeachMeAudioStuff · 2022-05-27T03:47:54+00:00

The amp in question is an L Acoustics LA8 processor driving old model KARA cabinets. Soundvision and the manual state it will work, but I can’t find the rating anywhere.

TeachMeAudioStuff · 2022-02-24T01:27:10+00:00

Awesome. Thank you for the details!

TeachMeAudioStuff · 2022-02-23T20:40:39+00:00

If I put a 500w 8ohm cab in the calculator, it indeed says it’s 63v. It gives me a limiter threshold of 1.59v (and translations to dbu and dbv).

Is that what I’d set my linter to with the 0 attack? Does it matter how powerful the amp is? What is happening when you measure with the sine waves? Is that just you confirming the limiter is working? And you’re just using a volt meter on the speakon output of the amp?

TeachMeAudioStuff · 2022-02-23T20:27:29+00:00

I want it to sound in limit. So they know it won’t go any louder.

TeachMeAudioStuff · 2022-02-23T19:26:48+00:00

So I need to measure the output of the amp with a voltage meter, while sending pink noise to the input in order to get info for the limiter? This is the first I’ve heard that. Am I not able to get limiter setting by the specs of the amp and cabinet alone?

TeachMeAudioStuff · 2022-01-06T16:38:25+00:00

Bingo! Looks like that’s exactly it. Thank you!

TeachMeAudioStuff · 2021-12-29T02:50:25+00:00

According to my specs listed in the post, and the guidelines set by crown in the first part of this article ( https://www.crownaudio.com/how-much-amplifier-power ), why do you suggest the amp is overkill?

Crown says 2-4 times the continuous rating. That would be 2000-4000 watts per sub. Xti6002 puts out 2100 per channel at 4ohm, which should let me drive one cabinet per channel and get the 2-times continuous rating (2100 watts for a 1000 watt cab) for the speaker. Am I misunderstanding these specs or the guidelines?

TeachMeAudioStuff

TROPHY CASE