What does the best sounding church for worship sound like?
Is it possible to have the best balance for speech, music and congregational singing?
Does the quality of the acoustics and sound system at your church honor God or Man?
The battle for a person’s soul is a constant war on many levels. The people involved are ministers, preachers, scholars, experts, archeologists, historians, prayer warriors, educators, and ordinary Christian people who provide different ways of bringing the message of salvation through Jesus Christ. The tools we have are Bibles, books, reading materials, colleges, universities, missions, donations, churches, multimedia, sound systems, and more.
Christians are taught in the sufficiency of scriptures. Many believe that the Bible is the inspired word of God and never question it. Some of the knowledge in the Bible is still teaching us today. It is only now that we are learning how relevant it is for all Christians and Jews.
Since the beginning of when Jews, and later Christians, started to build larger spaces for teaching and worship, most projects would run into common problems. These problems have been like a plague for Synagogues and Churches alike. The solutions to those issues seem elusive or beyond reach and yet the remedies to most of those issues have always been in the Bible.
The Bible has a lot to say about how a modern church should be designed. Solomon’s Temple was not just a house for God to dwell in, it was also meant to be a tool to help preach and spread the Gospel in the present.
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This article is the most comprehensive study of King Solomon’s Temple I have ever written. If you believe John 1:3, then you know who really designed Solomon’s Temple. King David only penned the details of the new temple. King David told his son Solomon that it was the hand of God that guided his hand. What was so important for God to design the temple rather than letting a man design in with whatever came into his thought?
This article gives a stronger case for what the “Inspired Word of God” means.
Winning people to Christ is not a game or something given to chance. We need all the tools possible to have an impact on this world. Jesus is Lord, and if your church is dedicated to God, Jesus is Lord over your church building too.
The goal of any worship space and the church sound system is not about loudness, gain before feedback, intelligibility, special sound effects for the organ or choir, having the most talented performers in the worship team, how many wireless mics, number of channels the mixer has or the name brand of equipment you have. The goal of a church worship space and the sound system is to be a safe place where the Gospel can be presented clearly and with little to no blemishes. Where every person within the worship space can hear and understand the Gospel as clearly as when having a conversation with someone only 4 feet away and sharing the Gospel. Anything less than that goal means that the spoken word can be corrupted in the journey between the minister’s mouth and ears of all those who are listening. The Gospel needs to be broadcasted and understood as clearly as reading God’s written words.
If your church has hot spots, dead spots, good sound in these seats and poor sound in those seats, then the Gospel is not being presented equally to everyone. If your sound system has technical problems during worship often, then it is a distraction, and it can make the difference of understanding something important.
The chart below shows tangible results when your worship and sound system are tested. There should be three tests.
The first is with a test speaker. It is a point source speaker that is small enough to mimic a person’s voice.
The next test is feeding a signal directly into the sound system and test those results. This test is just about the playback quality of your sound system.
The third test is to use the test speaker 30 inches from an open microphone such as a pulpit or any microphone on a stand and test the combined results of the worship space’s acoustics direct interaction of the sound system and open mics. You can also do a second version of this test and place the test speaker 4 inches from a microphone where the microphone is 45 degrees off axis.
If all three tests are not in the Yellow section, the results will let you know if it is your sound system, the acoustics or all of the above. This is also a better indication predicting if upgrading your sound system will improve the results you are looking for. This is also a strong indicator that your worship space needs some kind of an acoustical management system
You can get your church tested. It doesn’t cost much, and the results can save a life or many lives, depending on your point of view. As an independent consulting company, we offer church testing and results with no obligation to use our services in the future.
There are three key parts to what happens in church worship. There is the spoken word, there is collaborative/congregational singing, and there is performance singing. For a worship space to support these three events where speech is first, then congregational singing and performance singing, you need a specific design and dimensions to support these functions well. High-quality speech should not come at the expense of the music. Music should not come at the cost of speech. There is a balance, and part of that balance is to have enough ceiling height to support both speech and music in a contained space.
Unfortunately, churches these days are building lower and lower ceilings in their worship spaces. A person can assume that when so many churches have experienced only poor quality acoustics, many wonder what is the point of building a taller worship space.
When a church builds a low ceiling, it limits congregational singing and it makes you more dependent on technology, but guess what! The same things that limit congregational singing are what also limits the performance of the technology we affectionately call the sound systems. So, instead of getting 100% out of your high-quality, expensive sound system, you’re getting only 40 to 60% of the sound systems’ true performance abilities. It is actually cheaper to build higher than the added cost of un-needed audio technology to make up the difference. The chart below should clear the air as to the minimum height your next church should be. If you can afford to build higher, do it. Also, a taller worship space does not mean being stuck with longer reverb times. A higher ceiling means natural room reverberation can be adjustable and is tune-able. With a taller ceiling, you can change the frequency response of the whole room without needing a sound system or equalizer.
Church height is important for a worship space. One of the biggest parts of worship is singing. Congregational singing to be specific. When singing as a group, several elements are required for a good and healthy worship experience. There is chorusing, harmony, sound volume, or loudness of the singing and being able to hear yourself as well as the people around you. When all of these elements are in balance, the worship experience is like no other. The majority of people get a lot of satisfaction from the singing experience during worshiping in rooms that have ceiling heights that match the size of the seating capacity of the worship space. The above chart is the minimum of interior ceiling heights. If you want to build higher, you can as the singing experience gets even better.
High ceilings allow for better sound system performance with less expensive sound equipment. (A lot of pro audio contractors, installers, and equipment manufacturers don’t like hearing this.) Higher ceiling permits better gain before feedback and it becomes easier to isolate drums and floor monitors. The performance of the sound system is much better too when that is coupled with a good quality acoustical management system.
There are economic advantages too. The higher the ceiling, the cheaper it is to heat and cool when using a vertical displacement HVAC type system which is specifically designed for large gathering spaces for people. Such systems cost less to install, they use smaller HVAC components and cost about 30 to 40% less to operate annually. In addition, the cooling systems last 2 to 3 times longer before needing to be replaced. In a way, building higher cost less both in cost and in operation over time.
Another thing to consider. If building new, don’t build a flat ceiling that is parallel to the floor. (and it doesn’t count if you put in a sloping floor.) Many churches that are moving into commercial buildings are learning the hard way that flat ceilings limit the quality of live musical performances and congregational singing. Sure, there are acoustical panels that can slightly improve the room for amplified sound, but the cost doesn’t justify the returns. There is little that can help congregational singing even if you have the height. Vertical standing waves are harder to manage than horizontal standing waves. If you know what you are doing, horizontal standing waves can be controlled to create an outstanding room. It is part of the formula for that perfect worship space. Funny though, most concert musicians that perform in a church that I have fixed, they often make comments like, “I wish our concert hall sounded and performed as well.” That is almost like saying, “concert halls make for lousy worship space but worship spaces can perform better than a concert hall.”
Finally, there is the Biblical standard for church sound. For a 160 seat church as detailed in the Bible, the Biblical standard is the width of the room is to be 50% of the length and the height of the room should be 75% of the length. However, we now know that for anything over 45 feet high and less than 2000 seating, the extra height is not needed. It is the length to width ratio of 2:1 is key and a constant height of 45 feet or 13.7 meters. For those who don’t want long rooms, because of sound systems, we can use a length of width ratio of 2:1.7 or a room that is 100 x 70, and you must always use the room lengthways or you destroy congregational singing and speech.
God gave us the laws of physics for a reason. When we obey God, we reap the benefits. When we ignore God’s teaching, we will have our reward here on earth. The sanctuary of a church is a battlefield where the hearts, minds, and souls of people can be added or subtracted people from the Kingdom of God. The acoustics of a church plays an important part in either adding or subtracting people. The change is slow and often not noticed, but when you visit hundreds of churches that have their worship spaces upgraded to the standards of the Bible as best as possible, there has always been an increase years later, ( unless there have been leadership or church split issues.)
*Note* In most countries that have freedom of religion laws, the worship space portion of a church building has no roof heights limits regardless of local city building height restrictions.
**Note** The data is based on 1200 churches from around the world.
Churches use a lot of Cardboard Tubes in acoustical room fixes because they are very effective in getting the room performance they want and need. Cardboard Tube not only outperform all other acoustical products in churches but they are also the most affordable. There is nothing that can do what half-round tubes can do, even at 40 times the cost.
Ok then, what if you don’t like the look of cardboard tubes around your worship space. Here is an option some churches have been willing to spend a little extra for.
These look like standard 5 inch deep absorbing panels. They are not. These are Sono Tubes mounted in a wooden frame and covered with cloth.
The cloth was an added expense and it was worth it. The fire rated cloth is expensive and before covering the panels, you want to make sure the acoustical system is going to work and work it did. The church is very happy with the results and they are enjoying the room.
This is what the installation looked like before it was covered. The wooden frame has no effect on the performance of the half round tubes. The cloth only affects frequencies above 10,000 Hertz which means they have no effect on speech or music. In this installation, three sizes of tubes were used.
At the bottom is a huge video wall screen. On the wall are the Sono Tubes. Yes, the tubes will work behind a vinyl screen. If you notice the pattern of the diffusers on the wall. that pattern was needed to control lower mids and bass sound energy. This pattern was pretested in our test room.
Here is the finished installation of the video system. It takes three projectors for each screen. The center screen is a video wall.
Photos courtesy of Frederic Lachance of Northside Church in Coquitlam BC, 2017.
Welcome to the world of Church Acoustics 