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Audio communications microphone preamp/compressor box with PCB

This is for those with knowledge of radio and communications systems out there : I would like to build a small board for use with radio communications that would provide a small 3 channel mixer to allow using a condenser microphone with XLR connector. This will require a 48 vdc phantom supply with switchable on/offI would like to use the Signetics NE570 compandor to give me good compression - as in a broadcast station. I would like to have an LED VU display - LM3915 or equivelent, to be able to calibrate to avoid overrmodulation. There will be four inputs: condenser, dynamic/headset, OEM microphone. There should be two outputs - USB interface for audio out using CM??? USB-Audio IC. All powered from 12 vdc wall wart.

Milestone 1 - meet and discuss the project prior to making the final [url removed, login to view] to work with someone to arrive at a schematic (Milestone 2) and then have that schematic tested (I would order a PCB based upon the files you provide) Allow for 2 iterations of changes to schematic/PCB design.

Kỹ năng: Kĩ thuật điện, Điện tử, PCB Layout

Xem thêm: lm3915 pcb, preamp, communications microphone preamp, communications audio compressor, audio compressor pcb, ic systems, display wall board, vu, pcb schematic, pcb radio, oem, led display, ic design, electrical project work, communications, microphone design, audio compression, electrical pcb, pcb design project box, electrical schematic, use microphone, pcb based project, schematic usb preamp, led pcb board, ne570 broadcast pcb

Về Bên Thuê:
( 20 nhận xét ) ccccc, United States

Mã Dự Án: #4550703

7 freelancer đang chào giá trung bình $1339 cho công việc này

MikroStar

hi, i am an electrical engineer and an embedded system designer. i can help you with this project.

$1800 USD trong 20 ngày
(47 Đánh Giá)
6.5
betaenergy

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Thêm

$526 USD trong 3 ngày
(14 Đánh Giá)
4.8
ENGKAM

Hi, I am interested to work with you

$1111 USD trong 30 ngày
(1 Đánh Giá)
3.0
vk2tds

Sounds like a great little project

$1546 USD trong 21 ngày
(0 Đánh Giá)
0.0
smileitsolu

"This is not generic message we have properly read your project and interested for that " we are a Team of professionals having good experience of various projects. I will really appreciate if you can share your quer Thêm

$1804 USD trong 30 ngày
(0 Đánh Giá)
0.0
sijosv

I am interested in this project

$1111 USD trong 3 ngày
(0 Đánh Giá)
0.0
Moujahid

I'm very interested in this offer, I can perfectelly follow the procedures for this task. Please check my profile.

$1000 USD trong 3 ngày
(0 Đánh Giá)
0.0
Zibsnis

Dear Ser, please check Your PMB

$1000 USD trong 12 ngày
(0 Đánh Giá)
0.0