measureing frequency and ampliture with an iPhone app.

Hello, I need to create a iPhone app to:

a) identify and measure the frequency and amplitude of a rhythmic vibration in the 2-20 htz for a fixed interval of time (ie 10-20 sec)

b) and provide a moving average of the frequency and amplitude over a time period. For example it may be over 30 sec with a moving average over 3 sec.

It helpful if you are familiar with accelerometers, particularly the iPhone’s . If you can program it yourself even better.

([url removed, login to view] features/[url removed, login to view] ) and yes I am aware of the opensource apps that record accelerometer data and display it.

We can program our selves, but are not quite up to par with the math and physics. So we will probably be utilizing high pass filters w/ FFT.

I’m looking for someone with experience in these type of measurement w/ accelerometers, the math & the programming. If you have experience specific on the iPhone even better.


Beceriler: Algoritma, iPhone, Matematik, İstatistik

Daha fazlasını gör: frequency app iphone, iphone app frequency, iphone frequency app, frequency apps iphone, frequency iphone app, iphone app measure frequency, iphone apps frequency, app iphone frequency, ampliture, measure fft iphone, iphone app frequency identify, iphone frequency apps, iphone accelerometer fft, iphone app identify frequency, accelerometer amplitude frequency iphone, frequency measure iphone app, frequency measurement app iphone, frequency measurement app, apps measure frequency, iphone app frequency measurement

İşveren Hakkında:
( 52 değerlendirme ) san diego, United States

Proje NO: #698914



Hi, Please see your PMB for details of my execution plan. Thanks.

%selectedBids___i_period_sub_7% gün içinde 600%project_currencyDetails_sign_sub_9% %project_currencyDetails_code_sub_10%
(38 Değerlendirme)

Bu iş için 10 freelancer ortalamada $609 teklif veriyor


This sounds like an interesting project, sending you a PM for details.

in %bids___i_period_sub_35% gün içinde750%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(36 Değerlendirme)

Please check PMB

in %bids___i_period_sub_35% gün içinde785%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(38 Değerlendirme)

Hi there, Delivering high-value, innovative mobile solutions! EMobilityXperts has a team dedicated to creating cutting edge applications and services for the Apple IPhone, Blackberry, J2ME, Symbian, Windows Mobile Daha Fazla

in %bids___i_period_sub_35% gün içinde900%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(6 Değerlendirme)

After studying the description we have a rough understanding of your requirement. On the basis of which we are bidding here. To make it more clear we need to resolve some queries, that we have mentioned in the private Daha Fazla

in %bids___i_period_sub_35% gün içinde450%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(2 Değerlendirme)

I have a BSc in physics and have a strong mathematical background, and have worked a lot in programming already for scientific computing. I could easily implement the Discrete Fourier Transform for getting the frecuenc Daha Fazla

in %bids___i_period_sub_35% gün içinde400%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)

hi im basically research person with iphone experience. i worked in developing algorithms form lot of image processing application. i worked with lot of filters in matlab. this project is very interesting and i like to Daha Fazla

in %bids___i_period_sub_35% gün içinde658%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)

sir , i m new to freelancer.com but have done many iphone projects for other outsourcing clients.i m an electronic artist so i m quiet comfortable in doing this project. check PMB for execution plan.

in %bids___i_period_sub_35% gün içinde450%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)

I have got got more than two years of experience in iPhone development and have many apps and games in apple store.I m fully competent and able to do challenging task.I m interested in working with you. Skype id : ami Daha Fazla

in %bids___i_period_sub_35% gün içinde600%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)

Hi, A Senior Hardware/DSP design engineer with 12 years of experience in Defense, Science and technology research center at your service. For this project we can use FFT. I can make the function for you, and provide tr Daha Fazla

in %bids___i_period_sub_35% gün içinde500%project_currencyDetails_sign_sub_37% %project_currencyDetails_code_sub_38%
(0 Değerlendirme)