Audio Amplification in Classrooms

Audio amplification in classrooms is a new application of old technology that is really catching on in schools.  I learned about it when we were first planning for technology in the new schools.  The basic system consists of a wireless microphone the teacher wears around his or her neck, an amplifier, and speakers mounted in the room.  At first glance this may seems to be unnecessary, or even wasteful.  After all, teachers did not have microphones when we went to school and we turned out o.k., right?

Further investigation pointed to research that demonstrated improvements in student attention and achievement when an amplification is in place.  I encourage you to follow the links, read the research, and leave your comments.

Overcoming the acoustical barriers to learning.

CBS News story

Audio Enhancement

Other research

5 Comments »

  1. Terrie Godfrey Said,

    October 22, 2007 @ 3:06 pm

    I think that this is a great idea. We now use a simplified version for our physical education classes. It really makes a great difference. Students tend to pay attention because they hear better now.

  2. kisland Said,

    October 23, 2007 @ 2:54 pm

    My teachers feel they are “way loud” already. However, the gym, computer lab, and cafeteria seem to be fitting places for such equipment.

  3. Linda Long Said,

    October 23, 2007 @ 9:24 pm

    I can see where the audio amplification would be an asset in first and second grade class rooms. When students are participating in Author’s Chair they usually cannot be heard by their peers. It is difficult to give beneficial feed back when you cannot hear their stories. Sounds like the problem could be resolved with audio amplification and also create high interest in writing just to get to use this device.

  4. Shelly Haskell Said,

    October 29, 2007 @ 4:56 pm

    I like the idea of having students use the system to share stories or reports. Like kisland said, our voices carry and we have metal walls- but could it be used to direct our voices more effectively not just louder?

  5. curritucktech Said,

    October 29, 2007 @ 6:40 pm

    Shelly, you make a great point. That is precisely what the system is for, to distribute the sound better and make the volume more consistent throughout the room.

    Here are some other comments I received via email.

    The 2nd grade team at JP Knapp think this is a great idea. It makes perfect sense and would be welcomed by us.

    Based on what I just read, I see a great deal of benefit in adding audio amplification to our classrooms. I am impressed by the impact on learning, particularly the rise in test scores, not to mention the effects on engagement and behavior! Upon immediate consideration, I see only two potential problems…one being that parents might hear from their kids, “the teacher is always yelling at us” since their voices will be amplified, and the other being the additional cost for equipment and installation.

    I visited the research. As I said before, I think amplified classrooms are the way to go.

    At the elementary level, the research on improvements in phonemic awareness is impressive and speaks directly to what our K-2 and even 3rd grade teachers focus on in early literacy development… Increasing on-task behavior is also a solid research basis for implementing… especially if all else remains the same, we stand the chance at increasing “brain activity”!

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