I'm trying to find a microphone that is 1/4" phono to use for RTA on my computer
what's the good mics that I should be looking at for this usage?
it has to be amplified correct?
what's the good mics that I should be looking at for this usage?
it has to be amplified correct?
I can recommend the Behringer ECM8000 microphone with the ART MicroMix mic preamp. About $100 for the pair.
I know its not what you've asked for but I'd recommend the Behringer ECM8000 in conjunction with TrueRTA or SIA SmaartLive.
The ECM8000 is omni-directional and is almost ruler flat from 20hz upto 15khz, there's a slight bump in the response above this of a couple of dB but TrueRTA and Smaart have calibration files included so its no problem at all.
Regarding connections: The ECM8000 is 48v phantom powered so you'll need a suitable pre-amp. The Behringer MIC100 or SHARK are both fine for the task and cheap. The outputs on these are either balanced XLR or 1/4" TRS.
There's more expensive solutions but for value and performance the Behringer kit is hard to beat.
If your wanting exotic and don't mind paying for it then I'd recommend the Earthworks M51 mic. I couldn't afford but hired one all the same to setup my speakers. Great mic and captures room impulses very accurately.
The ECM8000 is omni-directional and is almost ruler flat from 20hz upto 15khz, there's a slight bump in the response above this of a couple of dB but TrueRTA and Smaart have calibration files included so its no problem at all.
Regarding connections: The ECM8000 is 48v phantom powered so you'll need a suitable pre-amp. The Behringer MIC100 or SHARK are both fine for the task and cheap. The outputs on these are either balanced XLR or 1/4" TRS.
There's more expensive solutions but for value and performance the Behringer kit is hard to beat.
If your wanting exotic and don't mind paying for it then I'd recommend the Earthworks M51 mic. I couldn't afford but hired one all the same to setup my speakers. Great mic and captures room impulses very accurately.
ShinOBIWAN said:
my sound card has a mic preamp of 40v with full db adjustment and phantom 12v power supply
do I need a preamp still?
behringer seems pretty nice
Audiophilenoob said:
Same here and I could never get it to work. So I just bought a pre-amp. They'll be a bunch of pro-audio guys laughing at us for trying to run a 48v phantom powered mic with 12v 😀
While you at it buy up the components for a cable jig and get measuring some near and far field gated responses with speaker workshop!
ShinOBIWAN said:
components for a cable jig?
well I think the Sound card would work... but it's easier to just not worry about it and buy a MIC100...
Audiophilenoob said:
You'll definitely need that mic-pre, I can't see why your soundcards 12v is any different from mines 12v 😉
The cable jig is what you'll need to build in order to do comprehensive testing. Stuff like phase, impedance, TS parameters, group delay, distortion etc etc.
You've probably heard of the Walin Jig right? Well the cable jig is just another version but a little simpler to build. Either of these is used in conjunction with our old friend speaker workshop.
If you get stuck I'll help you out.
ShinOBIWAN said:
you got a link that talks about a cable jig? I'd be very interested to read how to build one
Audiophilenoob said:
Claudio's Website is an excellent place to start if your just getting into speaker workshop.
http://www.claudionegro.com/
Also download his PDF manual:
http://web.tiscali.it/claudionegro/download/SW tutorial ENG.zip
It contrain a very detailed and step by step guide to setting up your soundcard mic and jig ready to perform measurements that a simple RTA cannot.
It also show detailed photo's and diagrams on building the cable jigs required for testing certain parameters. Really easy to build BTW so don't be put off.
I can't believe you haven't used SpeakerWorkshop (SW) before. Did you not do ANY measurements on your current speakers, what about testing the TS parameters to ensure good matching and box volume mating?
I'm kinda shaking my head that you've made so many claims but measured nothing but eitherway enjoy!
PS. Do a search for Jay Butterman's SW Manual. Another excellent SW resource.
ShinOBIWAN said:
well the only speaker I needed to "test" would have been the PHL's... I have the tests john did and the ribbons T/S's you can figure with simple math...
I haven't made any claims about them that aren't true... I haven't done any measuring because my gainclone is just NOW finished so I can finally listen to full stereo
claims are just from my ears... I'm fairly certain that I haven't said anything more than that 😉 😉
thanks for the links BTW
Audiophilenoob said:
No problem I didn't mean anything by it, just thinking out loud really.
Our ears are the best measuring device we have anyhow when it comes to what's right and wrong.
The graphs and measurements just help you extract that last extra 10%. They also help imensely in the design stage and are great to confirm that you've nail the design when everything looks near textbook and your ears agree too.
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