I'm using macbook air. My XLR mic works fine without phantom power supply in between, it's just that audio is low. When I use phantom power supply, macbook doesn't detect the microphone. Has anybody faced a similar problem? What's the solution?
MacBook Pro – XLR Microphone Not Working with Phantom Power Supply
macbook promicrophone
Related Solutions
I have a 2011 MacBook Air 13" and I can confirm that the microphone on the original iPhone 4 headphones works when plugged into my Air. They show up as "External Microphone" in System Preferences.
I think that with a Y cable, one could use normal headsets which come with two plugs. There are overpriced Y cables available for recording apps on the iPhone, but I'm sure there are cheaper alternatives.
Note that the MacBooks (also Pro) all have two jacks, one combined for analog/digital out, one for line in. Later, the analog/digital out jack was replaced with analog/digital out, analog in like on the iPhone, but the microphone jack remained. I'm not sure about the current MacBook Pro, but my 2008 unibody MacBook still had two jacks, even though line in was available on the headphone jack, too.
So, regarding your Q: I'm reasonably sure the Bose headphones will work with your Air.
That TRRS socket actually has of odd configuration of 4 pins so that you can use the genuine Apple headphone/microphone all-in-one 4-pin combo that comes with iPods & iPhones etc. Generally they look like this:
Here is your microphone, right? The Sennheiser ME3. Notice there is a locking ring on that plug? Also, notice how there are two little black lines on the end there? That is the insulation separating the 3 conductive contacts aka 3 pins This is a TRS plug: ( - )( + )(⏚).
It comes with the following caveats:
1. The plug on your microphone has a rotating "locking ring", you have probably found that the microphone isn't working, or works only sporadically depending on the connection. The issue is that locking ring prevents the non-standard plug from fully engaging when plugging into your sound card.
2. Please note that all versions of the Sennheiser ME3 are wired differently than usual headset microphones and are not electrically compatible with many computer sound cards.
First of all, you're probably going to need something like this:
3. Additional Note: This adapter does not change the unusual wiring scheme used by Sennheiser in the manufacture of the ME3. The ME3 is not compatible with all sound cards. If you are having trouble, we recommend you interface your ME3 with an external USB sound adapter, such as the Andrea Pure Audio (MA) adapter, Buddy 7G or the SpeechWare MultiAdapter.
I don't know what's up with the strange wiring scheme. Maybe it's a stereo microphone, maybe it has something to do with their noise cancellation feature, maybe they use some weird shielding in their cable, maybe they're using balanced cables, maybe they just decided to use an odd wiring scheme and call it a proprietary connector, preventing people from using aftermarket accessories, maybe it was an accident. I can only speculate without digging deeper or seeing a schematic or something. If it were me, I would probably cut the plug off and wire it in a traditional manner. Apparently though, these are compatible with the Sennheiser ME3. They are known as The Andrea Pure Audio USB-SA Adapter & The Andrea Pure Audio USB-MA Adapter, respectively.
If by some miracle you have an ordinary connector, or you find a suitable line-level adapter to make things "normal", you're probably still going to want one of these;
1/8" TRRS male to 1/8" TS female input & 1/8" TRS female adapters:
Yes, it looks and sounds weird. The 4-conductor TRRS plug on this cable uses the CTIA standard configuration, which puts the microphone signal on the sleeve (versus being on the second ring in the OMTP standard). The CTIA standard has always been used by Apple and HTC, while older Samsung, Nokia & Sony Ericsson devices (for instance) initially used the OMTP standard.
Plug the 3.5mm (1/8") male TRRS plug into the audio jack on your laptop. The smaller of the two 3.5mm (1/8") female jack bodies is the TRS stereo headphone output. Plug your standard earphones, headphones, speakers, or other output device into this jack. The larger of the two 3.5mm (1/8") female jack bodies is the TS mono microphone input. Plug your (hopefully, now) "standard PC style microphone cable" into this jack.
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Best Answer
You still need a microphone preamp.
As always seems to happen with these mics, they are bought by people for whom it is their first venture into the audio field, beyond a headset mic.
Unfortunately, nothing in any of these ads tells you precisely what you are going to need - nor do they even supply the right cables in the box to be able to do it.
Theoretically, you can get a signal out of them by using a PC's built-in low voltage supply that can power headsets.
In practise, that really doesn't work well at all - so then people buy a phantom supply, without realising they still really need something to get the signal into the computer at good levels.
If you can return that phantom power supply, do so, you don't need it.
Even on the picture for the supply it shows you need to connect it to a preamp.
Preamps are readily-available with built-in phantom power & USB connection.
They become the instant bridge between your mic & your computer. They supply the correct phantom power to the mic & become a useable input for the computer.
Instead, get anything like the following list obtained by Googling "USB Phantom" -
Random selection on Amazon
Example -
They run from approx £30 to many hundreds, depending on number of inputs/features etc. All you need as a basic starter kit is 1 mic input with phantom power.
You also need a male-female XLR cable which will connect to the pre-amp's mic input, which those mics are not supplied with.