Apply filter on ''Audio playback and recording'' firmware for STM32F4

I am using ''Audio playback and recording'' example which is one of the firmware libraries downloadable from STM32 [url removed, login to view] board I am using is STM32F4 and I would like to apply a filter and then modulate the out put signal from the recorded voice using this [url removed, login to view] C code for the filter I am going to use is available and modulation part is only multiplication of the gained output from filtering stage with a sin wave with frequency 250 HZ that I already have [url removed, login to view] my problem is only implementation of all these elements every thing which is needed is prepared in advance. I am kinda of new in this and I couldn't figure it out how this example exactly work but it shouldn't be hard if you are familiar with embedded systems [url removed, login to view] programming language which is used for this program is C.

Evner: Indbygget Software

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Om arbejdsgiveren:
( 0 bedømmelser ) Sweden

Projekt ID: #4109242

6 freelancere byder i gennemsnit $467 på dette job


Hello. I have lot of experience with STM32F4. I can do it for you

$700 USD in 10 dage
(6 bedømmelser)

Maybe it's not difficult, but (see PMB)

$500 USD in 10 dage
(8 bedømmelser)

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 Flere

$700 USD in 14 dage
(5 bedømmelser)

Hi I can help you!

$400 USD in 20 dage
(0 bedømmelser)

I work with STM32F4 Discovery.

$550 USD in 25 dage
(0 bedømmelser)

Embedded C

$400 USD in 15 dage
(0 bedømmelser)

Hello, This seems like a simple enough project (more DSP than embedded). I've worked with ARM based boards extensively before (not the STM32F4, though) and I'm sure I'd be able to help. Feel free to review my profi Flere

$250 USD in 14 dage
(0 bedømmelser)