Find Jobs
Hire Freelancers

Sound Data Transfer / Data over sound transfer - IOS - ANDROID - PYTHON

$750-1500 USD

Cancelled
Posted over 6 years ago

$750-1500 USD

Paid on delivery
The project consist creating a class that, using only free resources and simple implementation methods do the following: *One class for Swift 4 (Object C not accepted) *One in Java for Android *One class in Python for both for linux and windows (so, all modules must work on both architectures) The source must be native and no deprecated methods should be used. The sound generated must works between all those three platforms. They must pair with all platforms that have a sound generator source and a sound receiver device. (A microfone and a speaker) It should works like chirp or lisnr. - Functions that should be implemented (Both on Receiver and Sender) *Pair each device (One to One Relationship) - For each operation, one device can only pair with another one. *Open a channel for transferring data *Recognize the Sender and Receiver *Stablish a handshake between both devices *Send / Receive string values *End the transmission The sound wave generated must be inaudible... up 18KHZ until 22KHZ The transfer must work in a range between 8 to 10 meters. The transfer will only send string values. As this kind of transmission now a days can transfer about 7kb/s so there is no need to be more than that. On the python class, It must have a function that creates what is supposed to be transmitted and save the wav file format on disk. (not on IOS or Android) It is important that the classes come with example projects that can be compiled and tested. It is also important a good documentation about everything coded. Test classes must be coded. The source code must be provided with out any licensing and neither implementations must be used with proprietary libs or any type of charge.
Project ID: 15529016

About the project

42 proposals
Remote project
Active 6 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
42 freelancers are bidding on average $1,214 USD for this job
User Avatar
Dear sir. Nice to meet you. I have read your job post in carefully and understood everything what you want. I have developed 30+ apps & published them app stores in successfully for 6+ years. As you have seen, I have developed the various social networking apps & awesome games, so have the more experience than other bidders. As a typical apps, I have developed the taxi booking app, chatting and dating app, shopping cart app and game development etc. Thus can provide the awesome app with high quality & customization according to your requirements on time, on budget. Please check my apps in here & give me the feedback kindly. I'd like to work for the project with you together. I think we can work long term relationship further. I look forward to hearing from you soon. Please feel free to contact with at anytime. Thanks for looking my proposal. Best & Warm Regards.
$1,250 USD in 20 days
5.0 (75 reviews)
8.3
8.3
User Avatar
OK, sir I will provide best product as well as good documentation about my code Please let's discuss further detail Thanks
$1,250 USD in 20 days
4.9 (122 reviews)
8.4
8.4
User Avatar
Hi, How are you ? I have read your "Sound Data Transfer / Data over sound transfer - IOS - ANDROID - PYTHON" project description carefully. I will provide you an perfect project on time. Relevant Skills and Experience You can know about my high development skill if you check this link: https://www.freelancer.com/u/Yugene90 I am ready to start immediately for you. Proposed Milestones $750 USD - PRB
$750 USD in 20 days
5.0 (82 reviews)
8.4
8.4
User Avatar
Dear sir I have carefully gone through your job description and so I am very interested in your project. I worked many projects similar like your idea Relevant Skills and Experience Please check my profile https://www.freelancer.com/u/Honestdeveloper1 You could confirm about my good skill Lets discuss about your project Thanks From MingFang Proposed Milestones $1250 USD - milestones
$1,250 USD in 20 days
5.0 (56 reviews)
8.3
8.3
User Avatar
My name is LiMing. I have been coding for over 10 years since I was 16 years old, and have rich experiences. I read your description carefully and understood perfectly Please contact to me and let's discuss your project in detail I WILL HELP YOU WITH BEST SERVICE. - My Service : 1. Perfect result and good, flexible service. 2. Good communication. If I work with you , my timezone will be changed to your timezone. 3. Full time working 4. Free service for update and maintenance. 5. Hope long term relationship. Thank you for reading my proposal. Relevant Skills and Experience Android, iPhone, Java, Mobile App Development, Python Proposed Milestones 30 - Design, UI Version 40 - Prototype 30 - Delivery
$1,250 USD in 20 days
5.0 (35 reviews)
7.5
7.5
User Avatar
Hello. I am software engineer and developer. So i can develop your project. I hope to work with you. Best regards.
$1,000 USD in 20 days
4.9 (46 reviews)
7.3
7.3
User Avatar
Hi There, I have read your project requirement & I understood it completely. we can develop this application as we have already worked on many application in past. Relevant Skills and Experience Android, iPhone, Java, Mobile App Development, Python Proposed Milestones $1357 USD - app
$1,357 USD in 20 days
4.8 (103 reviews)
7.6
7.6
User Avatar
Greetings. I just have a visual over your project's details and feel privileged to tell you that this correlates with my domain of expertise. Please message me as i will like to ask a few questions. Relevant Skills and Experience I have a lot to disclose as of my skills and looking forward to show all of it on chat. Proposed Milestones $1250 USD - default Please provide all requirements (Technical, Non-Technical and business logic).
$1,250 USD in 20 days
5.0 (21 reviews)
7.0
7.0
User Avatar
Hi There I gone through your app project mobile app requirements Sound Data Transfer / Data over sound transfer we are ready to deliver the job. I am an expert in developing web and app. Relevant Skills and Experience We have 7+ years experience on iPhone(ios), Android(JAVA) and PHP(WEB) Swift3 Objective-c PHP (all framwork) MySQL Design Android Android Java Sachin P Proposed Milestones $1138 USD - we will negotiate Initial milestone pattern on 30% Completion on 50% Completion on 80% Completion On final Delivery
$1,138 USD in 30 days
4.7 (66 reviews)
6.7
6.7
User Avatar
Hi! My name is Igor, I have strong experience with Android for 3+ years, I can develop this app for you Can we discuss details? Relevant Skills and Experience Android Proposed Milestones $833 USD - Final payment
$833 USD in 20 days
4.9 (28 reviews)
6.1
6.1
User Avatar
Dear friend, We read through the job details extremely carefully. We wish to have a discussion with you. We have some questions for you. Bluecoded Team Relevant Skills and Experience Android, iPhone, Java, Mobile App Development, Python Proposed Milestones $200 USD - milestone1 $200 USD - milestone2 $200 USD - milestone3 $650 USD - milestone4 shall we discuss
$1,250 USD in 20 days
4.9 (22 reviews)
5.8
5.8
User Avatar
I have experienced in Broadcast app. Relevant Skills and Experience android, iphone, java, swift Proposed Milestones $1250 USD - budget
$1,250 USD in 20 days
5.0 (11 reviews)
5.5
5.5
User Avatar
Hello there, I have over 5 years of experience in App development. I am good at both Android and iOS and I can finish your job successfully. Looking forward to discuss more this. Thanks. Relevant Skills and Experience Android, Swift, iPhone, Java Proposed Milestones $450 USD - Android $450 USD - iOS $400 USD - Python Can you tell me the timeline of this project?
$1,250 USD in 20 days
4.9 (13 reviews)
5.2
5.2
User Avatar
Hi, OZVID Technologies is a team of 80+ highly skilled developers having lot of experience in website and mobile application development (Android & iOS). We have completed 500+ applicatio... Relevant Skills and Experience Android,iPhone,Java,Mobile App Development,Python, Proposed Milestones $1250 USD - Full project Stay tuned, I'm still working on this proposal.
$1,250 USD in 20 days
4.9 (7 reviews)
5.3
5.3
User Avatar
I am an IITK graduate and I have 9 years of experience in software development. I have 100% completion rate and I have finished all the projects with the highest level of customer satisfaction. Relevant Skills and Experience I usually finish projects with ease on which other freelancers have already given up. I learn and understand new stuff very fast and finish the job with top quality and reliability. Proposed Milestones $1250 USD - First Milestone
$1,250 USD in 20 days
4.0 (24 reviews)
5.6
5.6
User Avatar
Hi there Greetings!! Hope you are doing well and good. I am Tarachand I Read Your Provide Project Requirement for a Web Development I am expert in Graphic Design, HTML,PHP, Wordpress Relevant Skills and Experience I have got 6+ years of experience in the building of different kind of websites on WordPress platform and surely able to develop Website with perfection and attention. Proposed Milestones $833 USD - Delivery of the project
$833 USD in 15 days
5.0 (8 reviews)
4.1
4.1
User Avatar
Hi, there. How are you? I've read your description. I can develop android and iphone apps with the backend service for you. I have rich experience so that I can do it in time. Relevant Skills and Experience android, iphone, ionic, python, php Proposed Milestones $1250 USD - complete Regards!
$1,250 USD in 20 days
5.0 (5 reviews)
3.9
3.9
User Avatar
I represent a company named Cyber security Infotech. We have a team of 40+ creative people and we cater the market of the Web & Mobile App design and development. Relevant Skills and Experience We got Android developer, who specializes in firebase and JSON backend activities. Additionally, we got front end material designers, like HTML and PHP developer,Python developer,Java. Proposed Milestones $1333 USD - Please do revert over private chat ! we definitely work as per your requirements. We are waiting for your positive revert ! Thanking You for your precious time. Regards SP@CSI
$1,333 USD in 30 days
4.6 (3 reviews)
1.8
1.8
User Avatar
Greeting, I have understood your Sound Data Transfer task and can do it with your 100% satisfaction. Please ping me for more discussion. Relevant Skills and Experience I have more than 5 years of experience in Android, iPhone, Java, Mobile App Development, Python Proposed Milestones $1250 USD - Sound Data Transfer / Data over sound transfer - IOS - ANDROID - PYTHON
$1,250 USD in 20 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Needed a sound data transfer Relevant Skills and Experience Python, Java, IOS, Android Proposed Milestones $750 USD - Start $750 USD - Development I would like to have a call with you to clarify some questions
$1,250 USD in 20 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of BRAZIL
Belo Horizonte, Brazil
5.0
4
Payment method verified
Member since Apr 14, 2007

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.