Tagged With "Feedback"

Topic

Feedback with Shure SM58 compared to T-Bone mic

Jill Fielding ·
hi I seem to get feedback when I use an SM58. Not when I use a T-bone mic is the the SM more multi directional than the t-bone is it best to sell all my Sm58s and buy another t-bone Edit Subject: Previously "Feedback" Bose Pro Community Admin
Topic

S1 Pro feedback on a stand when microphone is at the same height?

Steves Off The Couch ·
Hi,I knowthis is an old post.I just picked up the S1. Did you encounter any feedback issues with the S1 being at the same height as the mic..... @Tom Munch
Topic

Adjusting Trim, Volume and Feedback

Chris 9 ·
I am a member of an acoustic duo. I know very little about sound system management. We need help! We are using an L1 II, B1 and 2 Tone Match 1 units. First TM1 is connected to the analog input on the L1. Second TM1 is connected to the digital input of the L1. Two Microphones go straight into channels 1 & 2 of the first TM1 . One Resonator Electric guitar runs through Boss pedals and Radial PZ-Pre Preamp to channel 4 of the first TM1 (this guitar needs a boost). One acoustic guitar goes...
Topic

Apex Condenser microphone with L1 Model II

Posker ·
I purchased an Apex Condenser microphone. My Tone Match engine does not list it nor does it list any condenser microphones. Bose suggested using the Shure SM58. However, I get too much feedback when I try to turn up the volume. Any suggestions. Edit subject. Previously "Which Mike To Use"
Topic

Feedback from Mic

Jen B ·
Hey There, I purchased the S1 Bose Pro System and am loving it. I use a head microphone and am getting really bad feedback from the speaker in certain areas of the room. Can anyone pass on any info as to how to eliminate this? Potentially through the set up? I am green to this so any info would be appreciated. Thanks!
Topic

Microphone Feedback

ST ·
We have an article about Microphone Feedback . Please post questions about the article in this discussion. Thank you. Contents 1 What is feedback and how does it occur? 2 Techniques For Reducing Feedback 2.1 Gain Staging 2.1.1 T4S ToneMatch mixer/T8S ToneMatch mixer 2.1.1.1 Set Up Your Source 2.1.1.2 Trim Controls 2.1.2 T1 ToneMatch Audio Engine 2.1.2.1 Set Up Your Source 2.1.2.2 Set Input Trim 2.1.3 T1® Trim Pots 2.2 Close Microphone Technique 2.3 Vocal Strength 2.4 Directional Microphones...
Blog Post

Feedback / Microphone

ST ·
What is feedback and how does it occur? Feedback occurs when the sound from the loudspeaker (or loudspeakers if a microphone is connected to more than one) is louder at the microphone than the sound of the voice. This fundamental fact is shown in the figure below. Note that in the diagram an L1 system is shown but the same fundamental fact is true for ANY loudspeaker. If you understand this diagram, it is relatively easy to understand how changes in an amplification system and room can...
Reply

Re: How Do I use the T1® Noise Gate to Automatically Mute a Microphone?

Seagullman ·
Easy to follow and understand. That should help a few people to avoid microphone feedback in more difficult situations. Tony
Reply

Re: Microphone Feedback

CityFolk ·
Great stuff @ST
Reply

Re: Microphone Feedback

Starvin ·
Wow! One stop shopping for info on feedback issues . Great Idea ! Thanks ST!
Reply

Re: Feedback with Shure SM58 compared to T-Bone mic

ST ·
Hi Jill Fielding, Thank you for joining the Bose Portable PA Community. Welcome. What model of t.bone microphon e do you have? Thanks, ST
Reply

Re: Feedback with Shure SM58 compared to T-Bone mic

CityFolk ·
I’ve used SM58s and SM58 Beta mics with our L1 Model II with little feedback issues. The 58 series are dynamic mics with a fairly tight cardioid pattern making them more resistant to feedback than the more omni directional condenser style mics. In addition to what ST has asked, what Bose system are you using? L1, F1, S1? What mixer, T1/4S, T8S, other? There might be an issue with the Trim control(s) being improperly adjusted. See this link for some interesting info on mics and feedback.
Reply

Re: Feedback with Shure SM58 compared to T-Bone mic

Jill Fielding ·
Hi I’m using S1pro x2
Reply

Re: Feedback with Shure SM58 compared to T-Bone mic

jdbassentertainment.com ·
Not sure how reliable the t. Bone mic would be after being used for any length of time. I do know Shure mics last virtually forever.
Reply

Re: Feedback with Shure SM58 compared to T-Bone mic

CityFolk ·
I’ve had my Shure 58s for well over 10 years now with no issues. Jill what model of TBone mic do you have? Perhaps a brief overview of what you’re overall setup with the S1 is would also be handy. Do you sing and play an instrument? Sing with backing tracks? Etc.
Reply

Re: High power before feedback?

ST ·
Hi Garry, The answers to your questions are in this video. Enjoy. The Bose L1® Approach and the History of Amplification. ST
Reply

Re: Major Vocal Feedback problem.

Bose Pro Community Admin ·
Hello, Rod. This sounds like a good question for the broader owner community (rather than Ask Bose for Help). There may be other suggestions outside what we can provide. May I have your permission to move this discussion to the public forum? It sounds like the TC-Helicon Tone feature in the Mic Mechanic is adding gain to the microphone between songs. It could be doing that because you sing louder than you speak when addressing the audience between songs. To test the idea, take the Mic...
Reply

Re: Major Vocal Feedback problem.

Rod 3 ·
Thanks for your reply and suggestions. I will remove the Mic Mechanic unit from the chain as you have advised and report back with the results. I think I will also contact TC Helicon, they may be able to offer some advise/suggestions to resolve my feedback problems. And yes you most certainly can move this discussion to the public forum. Kind regards, Rod.
Reply

Re: Major Vocal Feedback problem.

FCBlues ·
If I had to jump to judgement I would blame the TC Helicon because it adds so many variables to the mix and I had a lot of surprizes when I used one. We have the same set up with same mics and acoustic guitars and can crank it up with it right behind us and no feedback ever. I would doubt it's from within the bose unless it's just broken. I'm sure you thought of this, but strip it down and rebuild it piece by piece with just the Microphone and a guitar with no effects. When it come time to...
Reply

Re: Major Vocal Feedback problem.

troubador ·
@Rod My 2 cents worth -- I found my TCH Harmony GX-T was putting way too much gain on the line. I removed it from the chain and all was well. I use my L1M2 2B1 T1 combo and love what it puts out ... now using an S1 for busking and loving it.
Reply

Re: Major Vocal Feedback problem.

Rod 3 ·
Hi troubador, You may be right, excessive gain could be the problem. I know that one of the differences between the original Mic Mechanic and the latest version (ie Mic Mechanic 2) is that there is now no mic gain control/setting so the gain is said to be automatically set by the singer's vocal/input thereby removing the need to manually set microphone levels. Good thing / not so good thing ? not sure! Maybe this is my overall problem, so I'm going to go right back to basics and remove the...
Reply

Re: Major Vocal Feedback problem.

Rod 3 ·
Hi FCBlues, I've had a couple of helpful replies to my 'feedback' problems and they have been along the same lines as you are suggesting ie the TC Helicon is the cause in some way. So I am going to remove the Mic Mechanic 2 from the chain, (reset all my settings in the L1 mk 2 and reintroduce the Mic Mechanic 2) adjust/tweek settings as I go along. Thanks for your advise - I'll let you know how I get on. Don't mind if I have to get rid of the Mic Mechanic 2 if it rids me of my problem BUT...
Reply

Re: T4S/T8S Gain Staging and Setting a ToneMatch Preset

CityFolk ·
@ST just FYI im not seeing a video when I use my iPad on Safari.
Reply

Re: T4S/T8S Gain Staging and Setting a ToneMatch Preset

ST ·
Hi CityFolk, Thanks for writing. I just double checked it on my iPad Pro 12.9 IOS 11.4.1 with Safari. Here's how the page looks from here. ToneMatch Mixer Gain Staging and ToneMatch Presets Are you seeing something different? ST
Reply

Re: T4S/T8S Gain Staging and Setting a ToneMatch Preset

CityFolk ·
Weird, the video area was blank but now I’m seeing it fine.
Reply

Re: T4S/T8S Gain Staging and Setting a ToneMatch Preset

ST ·
Hi CityFolk, That's a relief. What do you think of the video. ST
Reply

Re: T4S/T8S Gain Staging and Setting a ToneMatch Preset

CityFolk ·
@ST Video clearly shows how to do the gain/trim setting. That’s always been a bit murky to me. I thought it made it pretty fool proof.
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

Stephen ·
What levels are the main outputs on the system?
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

ST ·
Hi Jami, Have you seen this article? Microphone Feedback Notice the section on using the Noise Gate. ST
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

Chet ·
Are the L1s behind you? If so, moving them to the sides and slightly in front of the microphone line may still give you enough sidewash sound for monitoring and be much more resistant to feedback...
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

ScubaBadger ·
Hi Jami Have a look at the mics you are using, check the make and model at the manufacturers site and look for the polar pattern. Some Shure mics for instance come with varying polar patterns for resisting sound from the side or other angles. I run two L1 MKII systems in stereo and use a Shure Beta 87A specifically chosen with this set up in mind. I could have chosen the Beta 87B which is a different polar pattern that I believe would have brought about issues with feedback - I could be...
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

ST ·
Hi Everyone, I've updated the Microphone Feedback article with information specific to the T4S/T8S ToneMatch mixers. ST
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

Jami ·
we struggle to get the system over about 11 o'clock
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

Jami ·
we struggle to get the system over about 11 o'clock
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

Jami ·
We're going to try that at tomorrow's rehearsal. thank you for the thoughts on that.
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

Jami ·
Thank you!!!
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

ScubaBadger ·
I have on occasion in a noisy room where I am playing at reduced levels had the two L1's to my sides - a couple of metres away with them a couple of feet in front of me but turned in such that the 180 degree spread is bleeding towards me just a little - then I have up front speakers with a very little bit of foldback to monitor myself.
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

ScubaBadger ·
If using radio mics, do the receiver have sensitivity settings? On my Shure QLXD4 receiver I continually have my receiver sensitivity setting down at minus 12 - 14db.
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

Jami ·
We tried anything and everything at our last rehearsal with trim, noise gate EQ, etc with the mixers. Our lead vocalist uses a Shure Super 55 deluxe. The sound is amazing and in some ways it resists feedback, and in others it seems to magnify it. We found we had the most success by putting the two L1's in barely in front of and to the side of the mics and putting both back up vocal mic's on the L1 that wasn't used by the lead vocalist. There is enough bleed behind the system, that we could...
Reply

Re: Microphone Feedback with T8S, two L1 Model II with B2

ST ·
Hi Jami, Thanks for coming back to tell us how you're doing. I'm looking forward to hearing from you when you've done a few gigs with the new setup. Cheers! ST
Reply

Re: Feedback Issues

ST ·
Hi PatMcNabbb68, Thank you for joining the Bose Portable PA Community. Just have time for a quick fly by (happy long weekend). Please check out this article Microphone Feedback There are some tips about using effects with the T1. You can probably adapt some of those ideas to the TouchMix 16. Do you have a picture of the band performing with the L1s? I'd like to understand where you have the L1®s positioned. ST
Reply

Re: Feedback Issues

patmcnabb68 ·
I will see if we have a shot from our video session. Thank you for your quick reply. I love the sound of my speakers and the portability. I carry everything myself and set it up myself. Not bad for a 68 year old. Pat
Reply

Re: Feedback Issues

ST ·
Hi patmcnabb68, Thanks for using the Sketcher. I know it seems counterintuitive, but I would pan the lead vocalist's microphone hard to one side. You'll get more gain before feedback, and because the L1 Model II has such wide horizontal dispersion, the audience will still hear the lead vocal. I would pan to the system on the right in the sketch. Carrying that idea further, I would also pan all the inputs hard to one side or the other. Check out this article: Cocktail Party Effect ST
Reply

Re: Feedback Issues

W. P. Anthony ·
Too high Mic/Vocal compression can also cause feedback.
Reply

Re: Feedback Issues

W. P. Anthony ·
Too high Mic/Vocal compression can also cause feedback. Too much Gain also.
Reply

Re: Feedback Issues

patmcnabb68 ·
Thank you for these great suggestions. I'm pretty sure we had the compression all wrong on our first gig using this system and we adjusted the gain incorrectly. OK, we did about everything wrong we could do and still survive.
Reply

Re: Feedback with L1 Compact, T1 and floor monitor

ST ·
Hi Daniel, I'm sorry you're having trouble with feedback. To confirm - from your previous posts - you're using an L1 Compact. What kind of floor monitor do you have? Have you seen this article? Microphone Feedback ST
Reply

Re: Feedback with L1 Compact, T1 and floor monitor

Daniel Pray ·
Help guy's I'm new at the Bose L1 Compact and the T1 TONEMATCH. Did a gig with my new toys last night and couldn't figure out how to get enough volume without the dreaded squeal. We had a floor monitor, two mics-PG58 wireless & SM58 wired and a Gibson & Zager both acoustics. I'm used to Behringer mixers and amp with Peavey speakers so this is over our heads. I thought when I bought the Bose System the feedback wouldn't be a problem having the Compact behind us but we've put it...
Reply

Re: Feedback with L1 Compact, T1 and floor monitor

Ric ·
Lute hole covers with various levels of sound hole filtering will help you get that under control, @Daniel Pray : http://www.lutehole.com
Reply

Re: Feedback with L1 Compact, T1 and floor monitor

Ric ·
There's also a noise gate (squelch) in the T1 that prevents the signal from being amplified when some instruments or vocals are muted. I don't have my T1 in front of me and I forget the name of the noise gate, @Daniel Pray .
 
Post
Having trouble signing in?

We recently updated our sign-in procedure and if you have old sign-in data cached, this can create a problem. Please:

  1. Clear your browser cache and cookies
  2. Then close the browser (not just the window)
  3. Open the browser and try again
Thank you

Please make sure that your profile is up to date
×
×
×
×