Voltlog #123 - Piezo Buzzer Comparison

In this video I am measuring the output level of the various buzzer that you can find on ebay, banggood or aliexpress.

UNI-T UT353 Sound Meter

5:43 Buzzer #2 Kingstate KSTG954RP/HA (recovered from motherboard)

[TheKetsa]

I'd have liked to see the dbA of those last two buzzers at 5v.

[briggsmedia]

Thank you for doing this test!!! I really appreciate it.

[BR.]

Thanks a lot for doing this test!
Exactly what I was looking for.

[felixcat]

I use the biggest buzzer as an audible turn signal for my motorcycle. Works great even while wearing a helmut. Just use any one with leads attached and it should work just fine.

[gamerpaddy]

bad test distance was not consistent also where the port was facing was different on every test.. and you should generate the buzzers fs (resonance frequency) for best output. usually found on the listing or datasheets.

better move the spl meter 1m away from it then the port direction is not so critical. in the middle of the room otherwise walls reflect the sound and may amplify

[trse]

It's incredible. Thanks a lot man.

[battlecoder]

Nice test! I also prefer active buzzers (require 0 work to use) and bought a few recently.
It probably wasn't the goal of your test, but I would have liked to see the loudness of the bigger buzzers at 5V, and the current consumption of each, though.

I know buzzers are not going to get much "ON" time on regular applications for the current they use to matter that much in a design, but still; It would have been a reasonable indicator of efficiency (power used versus loudness).

[TheDefpom]

You should also do tests at different distances (fixed identical ones) to allow for the wavelengths of each frequency.

[Ryukachoo]

Would the higher voltage buzzers be much quieter at lower voltages?
Like if I tried to run the 24v buzzer on 12v would it not do anything, or just be quieter

[josephkaz]

Anyone know where I can source a single tone buzzer that is a low volume and frequency? I want to use it to indicate when a maglock is released allowing access to a door. People instinctively wait expecting to hear a buzz. None of the buzzers I can find fit my sound profile.

[komodospider]

Do you know if there are any 12v intermittent buzzers? No continuous sound but like a beeping sound

[avejst]

Thanks for sharing. A Good test, Interesting :-)

[whgpjm]

Am I correct that the sound pressure of the loudest one vibrated your skull?

[AutoBodyEverything]

Those are just speakers or tweeters basically correct? Buzz is just because the signal is an actual buzz correct? I’m looking for mini tweeters to use for a project.

[Craigthepope]

I hated watching this video but it was very helpful. Thank you.

[waltperko]

What are the part numbers for the active buzzers ???

[jayashreevilva]

Can I able change the frequency of active buzzer

[bbreeuwer]

For next time, I would recommend a (simple) usb soundcard with phantom power and a microphone. That way you can simply do a sweep/noise burst. More accurate and much faster. :)

[Esther]

If want to achieve 20kHz, then it is necessary to use more buzzer?

[TheDefpom]

My competition car stereo used to do 136dB