If you’ve run sound for very long, then you’ve probably encountered buzz and hum in your sound system.
And chances are you want to get rid of it, fast!
Buzz and Hum are different.
They sound different, and they have different causes.
This means that fixing them may require different solutions.
Buzz is often a higher pitched noise that can even crackle at times. (Imagine the zzzzzzz and crackle in a bad AM radio station.)
Hum tends to sound lower pitched and it will likely have a tone signature that you can actually hum along with. (Imagine a low or mid-frequency mmmmmm.)
Buzz is generally caused by electrical noise or interference that gets into the audio signal.
This interference can...
Live streaming your church services can be a great way to reach your congregation. In fact, it may be the only way some members can even attend church.
With live streaming becoming such a critical service, it’s important to make sure the quality of the stream is as good as possible. Most people focus on the video quality first. But the real question is, can they hear you?
You know that audio is the most important part of any live stream, right?
If your audio quality is decent and your video is so-so, I’ll probably stick around. But if your audio is terrible, I don’t care how good the video is, I’m tuning out.
It is really important to send a consistent audio feed to your live streaming service. There are a few...
With cold and flu (and now Coronavirus / COVID-19) season here in force, there have been a lot of questions about how to properly clean and disinfect microphones.
Unsurprisingly, there is some misleading and often bad information on some of the social media threads that I’ve seen lately.
Here are some tips to help you keep those mics clean and sanitary, now and any time of year.
The recommended mic placement for handheld vocal microphones means that the microphone is very close to or even touches the singer’s face or lips. This means that spit/mucus/etc. can easily be transferred from the mouth to the microphone grill and underlying foam filter.
The body of the microphone is another surface...
Despite years of experience playing in bands and performing a variety of music styles, I was caught off guard a little bit when I started playing drums for my local church worship team.
In case you have any uncertainty about it, there's a big difference between playing drums for a gig or concert and playing drums for worship (same goes for every other musician or vocalist on stage).
Playing an instrument or singing for worship is not a performance. I know that's easy to say, but a lot of "performers" on stage can struggle with adapting their style of playing with the needs of the worship leader and congregation. I did when I was a young and enthusiastic drummer!
As a drummer and an audio...
At some point in our time as a church sound tech, we’ll probably be asked to teach someone “everything we know about church sound.” That can feel incredibly intimidating!
There’s nothing quite like learning how to use a new piece of gear or practicing a new technique, and then having to train someone else on your team how to be proficient with it.
The great thing about this is that it forces you to truly grasp the fundamental concepts of what you’re doing and why.
In order to teach something effectively, you need to distill the complex variables of your task into manageable concepts that your student can comprehend and then put into practice.
I know it’s easy to be dazzled by the latest piece of...
Compression is a great tool that can tighten up your mix and enhance the punch or power of certain instruments. But it can also cause some serious problems if you’re not careful.
An audio compressor is used to control the dynamic range of an audio signal, or the difference between the highest and lowest volume level.
Controlling the dynamic range can help you create a more stable sounding mix (especially when it comes to the pastor’s mic), and you’ll be able to dial in the sweet spot for certain instruments (like the kick drum).
But using the audio compressor on a digital console or a separate analog compressor can be intimidating – even if you've used one before!
It doesn't have to be super complicated. And it...
When you work with live sound, you're going to deal with a lot of different audio cables.
And sometimes those cables break.
The most common cable problem can actually happen inside of the connectors at either end of the cable where individual wires can become physically detached from the connection points.
This can happen for several reasons, but here are the 3 most common causes:
If you’ve recently started running sound or can’t seem to stop the ring of feedback happening in your system, then the following tips will help take care of that in no time.
And if you’ve been running sound for a while, you may feel like you have a handle on this topic. That’s great! Check out these suggestions to see if there is something you can use to help pass on the info to a new volunteer.
Before we stop feedback, let’s just paint a picture of what it is.
Feedback is simply the amplified sound of an audio signal being picked up by the same microphone that transmitted the signal and then sent through the sound system again, or re-reinforced.
This creates a loop that will go on and on,...
Never underestimate the value of a good soundcheck.
Doing a soundcheck with your sound system components before you go live seems simple enough, but it’s amazing how often this crucial step is rushed when preparing for “the main event”.
The key to successful live sound reinforcement mixing and system performance is a good soundcheck.
Even the most experienced professional audio engineers take their time to do a thorough soundcheck, even on systems they’ve used a thousand times. It’s that important.
There are different ways to approach a soundcheck, but the end result should always be quality sound from the stage to the main loudspeakers, a good monitor mix for each musician and vocalist, and a sound tech...
Worship distractions can happen when you least expect them. And there are a variety to choose from!
Some distractions just can’t be avoided, like the baby in the back row making a less-than-joyful noise. But there are a number of distractions that can and should be completely avoided.
In terms of technical system distractions, there can be many causes.
Sometimes the media slide computer will shut down or reboot in the middle of the service, or images on the screen may flash in and out due to a cable or digital video signal issue.
Environmental control systems like HVAC can malfunction or be programmed incorrectly. The sanctuary can be too cold or too hot. And sometimes loud fans can abruptly turn on during a quiet moment of...