Author Topic: about sa microphone (Read 1280 times)

fran2no · « **on:** March 30, 2010, 08:20:10 PM »

bakit po kaya mahina ang sound ng microphone namin kahit nakakabit na sa amplifier??

ung audio amplifier naba ung may sira??

Philippine Electronics Forum · « **on:** March 30, 2010, 08:20:10 PM »

tiktak · « **Reply #1 on:** March 30, 2010, 08:23:20 PM »

anong brand po ng microphone nyo? meron talaga mga microphone na mahihina ang pickup gaya ng mga ordinary like sa experience ko yung balantines na brand eh mahina ang pickup at mababa ang boses

Philippine Electronics Forum · « **Reply #1 on:** March 30, 2010, 08:23:20 PM »

TinTopHack · « **Reply #2 on:** March 31, 2010, 12:04:39 AM »

Check also the impedance of your microphone and the input impedance of your mic input to the amplifier you are using. If your mic impedance is higher than the input impedance of your mic input then you will have loss of signal strength.

Generally dynamic mics with low impedance are better than mics with high impedance. Mics with high impedance are generally cheap but they do not work well with long cables - poor audio and loss of high frequencies.

Mics for professional use generally have impedances below 600 ohms (low impedance mics) but they are quite expensive - a few thousand pesos each.

Medium impedance mics (600 ohms to 10K) are relatively cheaper (<1000 pesos) and are usually OK for household use and common PA use.

High impedance mics - usually cost below 300 pesos each. I suggest you forget them

Piezo and electret mics have high impedances but they usually come with a buffer circuit that has low output impedance so they are generally OK. Professioanl versions of piezo/electret mics are quite expensive too.

Philippine Electronics Forum · « **Reply #2 on:** March 31, 2010, 12:04:39 AM »

fran2no · « **Reply #3 on:** March 31, 2010, 01:24:29 AM »

600 ohm po ung impedance ng mic pero ung sound mahina po

Philippine Electronics Forum · « **Reply #3 on:** March 31, 2010, 01:24:29 AM »

audiomachines · « **Reply #4 on:** March 31, 2010, 08:03:44 AM »

ano ba ginamit na mic input balanced (XLR) or ung PL (phone plug) na likely na unbalanced?

Philippine Electronics Forum · « **Reply #4 on:** March 31, 2010, 08:03:44 AM »

fran2no · « **Reply #5 on:** March 31, 2010, 10:29:09 PM »

anu po itsura ng mga un??marami bang klase ng mic??

Simatar · « **Reply #6 on:** April 01, 2010, 11:26:47 AM »

Quote from: fran2no on March 31, 2010, 01:24:29 AM

600 ohm po ung impedance ng mic pero ung sound mahina po

TS ano brand yang MIC mo?

Dati na ba mahina since nabili at nasubukan?

fran2no · « **Reply #7 on:** April 02, 2010, 02:54:16 PM »

ROSA Dynamic Microphone po ung nakalagay sa case

Engr. Dennis · « **Reply #8 on:** May 13, 2010, 05:05:15 PM »

I recommend sa yo try to use Wharfedale CS-30. Ok itong microphone kung for karaoke application lang. May website sila at www.wharfedalepro.com

jeje-BUSTER · « **Reply #9 on:** November 04, 2010, 02:29:38 AM »

Baka may circuit po kayo ng buffer circuit for electret mic.. I dont know how to describe it pero yun yung nakalagay sa pouch at kasama na din yung kanyang power supply (I assume it to be a 9v battery)..

Balak ko sana gumawa ng DIY lapel.. Kukunin ko yung mic ng a4tech headset na hindi ginagamit.. tapos parang preamp nalang yung nasa pouch.. Kaso hindi ko mahanap yung circuit diagram na free sa google.. hehehe baka gamitin ko sa violin pag maganda output..

Thanks in advance mga sis..

Philippine Electronics Forum · « **Reply #9 on:** November 04, 2010, 02:29:38 AM »

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