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Dual microphone background noise reduction module for Window

Dual microphone background noise reduction module for Windows

We need a dual microphone background noise reduction module to enhance speech signal for Windows XP/Vista/7 (32/64 bit) for language laboratory. This module need to reduce general lab noise (fan noise and computer noise) + neighbor students speech.

Each student wear a special headset with 2 microphones #2a & #2b on both ear pieces to record the general lab noise noise (fan noise, computer noise) + neighbor students speech and 1 microphone #1 to record the student's own speech.

Microphone #1 will be connected to a usb sound card (cmedia 6206 chipset).

Microphone #2a & #2b will be connected to an A/D input port on the computer.

The dual microphone background noise reduction module will use microphone #2a & #2b 's input as reference to filter similar noise inside the microphone #1's input so the system can record a clear and clean speech recording for teacher assessment.

Since we already have our own sound card driver so we just need a module to compare and filter the general lab noise (fan noise and computer noise) + neighbor students speech.

Note: general lab noise (fan noise and computer noise) in general not much but neighbor students speech quite much because students are sitting close.

Skills: Electronics, Mathematics, Matlab and Mathematica

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About the Employer:
( 0 reviews ) KLN, Hong Kong

Project ID: #1292055

12 freelancers are bidding on average $1192 for this job

JacoB1708

Hi, I will be glad to help you. I can suggest you few ways to perform the noise filtering.

$1500 USD in 15 days
(7 Reviews)
4.9
bchandra1955

I have 25 years of experience in digital signal processing domain specific to noise control

$1475 USD in 25 days
(28 Reviews)
4.9
reallifetech

See details in MB.

$1200 USD in 20 days
(16 Reviews)
4.5
pdeblanc

I would model the waveforms as linear combinations of 3 to 6 independent noise processes and output the one most strongly coupled to the selected microphone.

$1250 USD in 15 days
(4 Reviews)
3.9
RanaEnggServices

Hi I am an Electronic Engineer, pursuing MS degree with specialization in "Signal Processing and Digital System Design" and have quite an expertise in Speech Processing on various platforms. My previously devel More

$1100 USD in 15 days
(3 Reviews)
3.4
exactmath

Hi, I am interested in your project. I have experience in Signal processing, which includes "Noise Cancellation".

$950 USD in 20 days
(2 Reviews)
2.1
zulfiqaradil

I have 14 years of experince in noice filtring @ hardware side.I have much more cheap and best techniques to filter a noise.

$1429 USD in 45 days
(0 Reviews)
0.0
progsel

HI, I can do this project with NO PROBLEM AT ALL. thank you maurizio stefani

$1300 USD in 20 days
(0 Reviews)
0.0
ameha88

Something for you, please see PMB.

$1000 USD in 10 days
(0 Reviews)
0.0
mumar6256

Hello; I am willing and ready to do this job.

$1000 USD in 20 days
(0 Reviews)
0.0
nidmirza

I have done filtering of brain signals in MATLAB. I would love to do your project.

$1000 USD in 10 days
(0 Reviews)
0.0
shmuelnaaman

brain scientist with 7 years experience in pattern recognition and noise reduction from highly noisy signal. your problem can be solved using the combination of traditional separation techniques and appropriate filtrat More

$1100 USD in 15 days
(0 Reviews)
0.0