вопрос по капсулям - но мне для голоса чтоб среднетерпимо звучал мужской голос, а не для замеров или прозаписи...
есть питание 5v и капсули - Panasonic wm-34 и Panasonic wm-54 - если найти Panasonic wm-60/61, качество голоса сильно подскочит ?
...даташиты смотрел, графон отличается толька выше 25к, а текст фиг поймешь буквально
также вопрос - wm-54 почемуто намного тише чем 34 - по дате вроде нет такой сильной разницы, это капсуль сдох или перегрузка вольтажа питания ?
Offтопик:
----------------- wm-34 ( 34j5x )
* Useful for almost any type telephone and other applications
* Low operation voltage of 1.0V to 10V (2M-034D type)
* Microphone with pins for PCB (WM-034B/034DB type)
*
Sensitivity See next page (0dB = 1V/pA, 1kHz) --- 38±3dB >> 46±3dB --- 36±2dB >> 44±2dB
Impedance Less than 2.2 kOm [1.5 kOm]
Directivity Omnidirectional
Frequency 20–16,000 Hz
Max. operation voltage 10V
Standard operation voltage 4.5V [1.5V]
Current consumption Max. 0.8mA [0.3mA]
Sensitivity reduction Within –3dB at 3V
[(M.H.): Within –3dB at 1V]
[(P.R.U.): Within –2dB at 1V]
S/N ratio More than 60dB
----------------- wm-54 ( 54j5m )
* High-cost performance, electret condenser microphone cartridge
* WM-52B series are low-voltage, 1.5V operation microphones and suitable for all telephone applications, intercoms, and computers
* WM-54B series are low-voltage 2.5V operation microphones and suitable for tape recorders, telephone devices, and toys
*
Sensitivity See next page (0dB = 1V/pA, 1kHz) --- 40±2dB >> 44±3dB --- 42±2dB >> 46±3dB
Impedance Less than 3.0 kOm [2.2 kOm]
Directivity Omnidirectional
Frequency 20–16,000 Hz
Max. operation voltage 10V
Standard operation voltage 1.5V [2.5V]
Current consumption Max. 0.3mA [0.6mA]
Sensitivity reduction Within –3 dB at 1.1V [2V]
S/N ratio More than 60dB
----------------- wm-60
Features
* Small microphones for general use
* Back electret type designed for high resistance to vibrations
*
Sensitivity – 44±5dB (0db = 1V/pa, 1kHz) --- 42 ±3dB // 44 ±3dB // 46 ±3dB
Impedance Less than 2.2 kOm
Directivity Omnidirectional
Frequency 20–20,000 Hz
Max. operation voltage 10V
Standard operation voltage 2V
Current consumption Max. 0.5 mA
Sensitivity reduction Within –3 dB at 1.5V
S/N ratio More than 58 dB
----------------- wm-61
* Small microphones for gener al use
* Back electret type designed for high resistance to vibrations, high signal-to-noise ratio
* High sensitivity type
* Microphone with pins for flexible PCB (WM-61B type)
*
Sensitivity –35±4dB (0db = 1V/pa, 1kHz) --- 35 ±4dB
Impedance Less than 2.2 kOm
Directivity Omnidirectional
Frequency 20–20,000 Hz
Max. operation voltage 10V
Standard operation voltage 2V
Current consumption Max. 0.5 mA
Sensitivity reduction Within –3 dB at 1.5V
S/N ratio More than 62 dB
у 34 и 54 пустая строка Sensitivity - в дате вместо цифр фраза "See next page" и сверху списки буквенных индексов и значений
Социальные закладки