Voice-over Microphone DIY or Buy
video description
1. The op-amp could be replaced with an ordinary audio transistor for a simpler circuit using less parts without hampering it's performance!
2. Adding a RIAA (or similar) filter to the circuit to suppress the higher frequencies, which should make the output less tinny.
N. B. It's the latter of the two which will make the output quality nearly indistinguishable from the high-end mic!
Also, output filter cap. It's not there, which could hurt certain devices when this is plugged in due to the 2. 5V bias on the output!
Analog designs can be a headache, but it's worth it to make as good a circuit as you possibly can.
Date: 2020-09-05
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Comments and reviews: 9
Shaun
Your result is questionable. All things being equal, it should have sounded similar to your lavalier mic. It sounds like the sound has gone through a low-pass filter. There are four possible points of failure: (1) the capsule could be of poor quality, (2) your circuit has a fault, (3) your laptop's mic input might have some kind of filtering activated and (4) your sampling rate could be very low.
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Your result is questionable. All things being equal, it should have sounded similar to your lavalier mic. It sounds like the sound has gone through a low-pass filter. There are four possible points of failure: (1) the capsule could be of poor quality, (2) your circuit has a fault, (3) your laptop's mic input might have some kind of filtering activated and (4) your sampling rate could be very low.
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Cryptix
So when you can't source the same quality components used in commercial solutions for DIY purpose, then it's not a fair comparison. The question rather would be, can one DIY build something to obtain the same quality of the commercial solution and if so, what would be the price and would it be worth the cost, time, effort and material.
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So when you can't source the same quality components used in commercial solutions for DIY purpose, then it's not a fair comparison. The question rather would be, can one DIY build something to obtain the same quality of the commercial solution and if so, what would be the price and would it be worth the cost, time, effort and material.
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Ignore
Im watching this video on a simple amp I built, still not perfect on the understanding of the circuitry but Im slowly changing and evolving it, for a completely passive amp its great as the only input signal is the aux from my phone, and it drives a 6 ohm 15 watt speaker, although not very loud, louder than headphones definitely
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Im watching this video on a simple amp I built, still not perfect on the understanding of the circuitry but Im slowly changing and evolving it, for a completely passive amp its great as the only input signal is the aux from my phone, and it drives a 6 ohm 15 watt speaker, although not very loud, louder than headphones definitely
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thomas
a fair comparison would be in the same acoustically treated spot, i think the diy mic in the same mount where the t bone was, would've delivered a similar quality ( may be not better, but the difference wouldn't be as much as shown in the video )
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a fair comparison would be in the same acoustically treated spot, i think the diy mic in the same mount where the t bone was, would've delivered a similar quality ( may be not better, but the difference wouldn't be as much as shown in the video )
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Josh
dear scott. i just made one according to your diagram. but the output is so noisy and the output min voltage is around 2. 6v. it works but its so noisy. I'll appreciate if you tell me where the problem is. tnx
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dear scott. i just made one according to your diagram. but the output is so noisy and the output min voltage is around 2. 6v. it works but its so noisy. I'll appreciate if you tell me where the problem is. tnx
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PORNOsotros
Hello teacher, i made this project and it work very good, but i have a question, how i can make that this microphone has more gain of bass for the voice? Because it has low bass and more gain in hight
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Hello teacher, i made this project and it work very good, but i have a question, how i can make that this microphone has more gain of bass for the voice? Because it has low bass and more gain in hight
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Cesar
I think this test is unfair. Electret microphones needs some housing to avoid the echo. To make it somewhat similar, I at least would put the band-pass filter in the condenser mic.
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I think this test is unfair. Electret microphones needs some housing to avoid the echo. To make it somewhat similar, I at least would put the band-pass filter in the condenser mic.
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Serge
You could drastically improve the sound quality of the diy version if u tried to connect 2 or more electret microphones in parallel, and making an enclosure with filter.
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You could drastically improve the sound quality of the diy version if u tried to connect 2 or more electret microphones in parallel, and making an enclosure with filter.
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PORNOsotros
hi teacher, i have a question, where i have to conect C2, is in whatever part of gnd or is better on output with gnd? i hope that you answer soon. bye teacher
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hi teacher, i have a question, where i have to conect C2, is in whatever part of gnd or is better on output with gnd? i hope that you answer soon. bye teacher
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