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TECHGROUNDINGTV
United Kingdom
Registrace 1. 12. 2014
Tutorial videos for the television and recording industry.
BRIGHT EYES PHANTOM POWER TESTER
Construction of the "bright eyes" handy portable phantom power indicator. Indicates the presence or absence of phantom power in XLR cables. Perfect tool to quickly find phantom power problems if your microphones don't work. Invaluable tool for sound engineers on location for fault finding.
zhlédnutí: 4 672
Video
PHANTOM POWER BASICS
zhlédnutí 88KPřed 9 lety
Hello, thanks for looking in to our channel in which we try to pass on helpful bits of information which I’ve picked up over the years working for BBC Television. Today I’d like to talk about phantom power. Most of us know that you have to switch it on when you are using capacitor or other powered microphones. But what are we doing when we switch it on? Moving coil, or dynamic, microphones don’...
HOW TO CONNECT A MICROPHONE TO YOUR AUDIO EQUIPMENT
zhlédnutí 100KPřed 9 lety
Hi! Thanks for looking in. I worked for BBC Television for 25 years as a sound man and I’d like to pass on some of the wrinkles and tips I’ve picked up during that time. In our first video we talked about how moving coil microphones work. We’ll be looking at other types of mics in future videos, but this one is about connecting up. All but the cheapest microphones have a 3-pin XLR male connecto...
MOVING COIL MICROPHONES
zhlédnutí 10KPřed 9 lety
This first video from TechGrounding TV gives you a basic understanding of how a moving coil microphones work. We start from first principles, showing how the audio current is generated by the microphone capsule. We look at a Shure SM58 and discuss the presence peak and it's significance. We discuss communication microphones and dual diaphragm types like the AKG D202. Presented by Joe Driver.
I thought your video on mic hook up toamp ,was great, if an Amp has a aux plug in,can I use that for the mic
Good video on some of the basics of Phantom Power, although not quite enough to really make people "understand" the entirety of the scheme. For those who don't know, here are just a few more things (not all of the things): - The 48VDC phantom power source is NOT "connected to pins 2 & 3"; if that were true, then pins 2 and 3 would need to be shorted together, which is not the case. - Instead, the 48VDC is individually connected, through resistors, to pins 2 & 3, so rather then being shorted together, those two pins have a pair of resistors in series between them, and the 48V is connected with its (+) side at the juncture of those two resistors, and with its (-) side at circuit ground (pin 1). - It is important for the two resistors to be the same value, or very nearly identical resistance values, and they need to have resistance in fairly narrow range of values; typically, 1% tolerance, metal film resistors are used, as they have accuracy and stability. - The voltmeter sees 0V when connected between pins 2 & 3, because those pins are connected, via resistors, to the same electrical point (the + side of the 48VDC supply), thus they are shorted together from the perspective of a high impedance voltmeter. - A pair of series capacitors are typically used at the cable's receiving end (e.g. a microphone mixer or pre-amp) to isolate pins 2 & 3 from the differential amplifier circuitry; these block the DC voltage on pins 2 & 3, so it is not presented to the diff-amp, although some diff-amp designs might be OK with that fairly high DC voltage, and the identical DC voltages would be rejected as common-mode noise by the amp.
Can I mix regular mic with the phantom on the same mixer??
I need phantom power for 2 condenser mics on my drums, but the other 4 mics don't need it. If I turn on phantom power and plug my regular mics into a channel that has phantom power to it, will it ruin my microphone? I believe my mixer has 6 channels that will have phantom power to them when turned on. So if using channels 1 & 2 for the condenser mics, and channels 3-6 for the other, will I cause damage to the mixer, or the mics? I'm just learning how to mic drums, so I don't want to ruin equipment, it's to expensive. Thank you for your help!
Brilliant indeed and I made it, but changed it slightly. I used LEDs I got from China, they have the resistor built in and with insulated leads, so no shorts lol. I also kept and used the rubber grommet, pushed the leds into that and hot glued so they wouldn’t move. Very handy piece of kit. thank you.
that is what I call a proper audio video
instant subscribe!
This is the first video I found that actually made me understand how phantom power works, you're an amazing explainer, thank you so much!
Thank you so much sir for your packaged information.
Thank you think helped me a lot! ☺️👍
Thank you so much ..LOVE
You are a legend, you blew my mind when you used the speaker as a microphone!
Thanks
amazing explaining for Phantom Power. Thank you so much !
THANK YOU FOR EXPLAINING THIS! :D
great help :) you know your stuff :)
Thank you for this video! I appreciate that you understand and explain the terminology so thoroughly. I learned a lot!
Is there a converter from 3.5 mm jack to XLR? Also can you plug in a mic to a 3.5 mm jack on a consumer video camcorder?
The 3.5 mm jack being the A/V input jack.
Fantastic video. Thanks!
Thank you very much sir
Amazing video! Loved your clarifying explanation, much obliged. Cheers from Argentina
This is my first time watching on this channel. The whole thing was very informative but I gotta love the most your recommendation and reference of exact EEV episode. EEV is amazing and I'm watching that next. I'm gonna 3d print that Bright Eyes gadget cause it's a genius design.
Thank you so much for making this clear. Everybody should watch this video. So, once and forever : if you use professional balanced cables, you can run dynamic microphones as well, even when your phantom power (48V) switch is ON. This is the best explanation of what are the pins 1 2 and 3 doing. And where exactly the 48V goes to.
He just said CZcams I thought this from like 1982 and someone uploaded it to CZcams later Whaat....
Thank you very much for this video. I have been struggling to find this info!
Hi,sir my mixer is having phantom power power not working problem. If i connect my xlr output from my mixer to the xlr input on the phantom power & then use the output xlr from the phantom power to be able to use my condensor mic will it work sir,thanks🙏
Thank you :)
1:42 _Wreck the mic_ *PSYCHE* I'll move along...
brilliant video informative and eloquently spoken cheers
Desr Sir, Why Phantom power is always 48v????? Not change???? What is the specific???? Thanks!!
very well done and explain that I could have a very useful gadget with me. Thanks again. :)
Not all stereo receivers have phantom powers that right?
I live in Thailand, and grounding is almost unheard of in the region I'm in. As a result, appliances and computers discharge current on their metal parts. If I use phantom power to power my shotgun condenser mic, do I risk burning out said mic, or will it just behave like my computer and give me a buzz every time I touch (ground) it. Thank you!
ASMR before ASMR was a thing. This man should do audio books!
I have been searching just about everywhere for a preamp or booster circuit to increase the output level of low output dynamic mics and the preamp will be powered by phantom voltage from the mixer the mics will be connected to. Of course, no phantom voltage will get into the mic. I have found many boosters powered by the 48 volt phantom circuit of the mixer but I don't know how to get the output signal of the booster back into the mixer's XLR input circuit. Please write back to me at computerlen@hotmail.com. Thank you for any help that you can give to me.
Eh-lo!
I'm interested in the balanced microphone which is the SM58, as it has three leads! What is the earth wire for if it doesn't matter when cut. How is it actually connected to the mic itself? Thanks in advance and for this great video. Singem.
Your lesson here is so useful! Thank you.
It’s the David Attenborough of the modern age
Thank you for an informative & useful video.
Very well said and helpful tips i like the diy gadget that you used in testing the power of the phantom hope i can see a demo on how you build it, and also id like to ask a question, if the phantom power is on at the mixer, is it still safe to put a 1/4 jack playback source on a line input? and also by the way if phantom power is on, will it affect a wireless mic reciever? Thank You so much!
excellent video easy to follow and very informative
lol
Great explanation! your voice reminds me the voice of David Attenborough
Thanks
i accidentaly plug my phone to a input with phantom power and I hear pop when i use my headphones
What a great explanetion! Thank you!
North Carolina Tar Heels basketball coach Roy Williams.
Thank you very much for your precise demo and lecture. Very much appreciated .