need someone expert to improve recording quality of Android call recorder app

hi,,,, PLEASE read all job description CAREFULLY before apply your proposal: i have android call recorder app on play store already submitted, it have one issue need to be fixed which is: it is recording calls perfectly with good sound quality in some devices, but it other devices its not, (some devices it have poor sound quality "low sound" in caller &/or receiver,and in some other devices it record only one side (caller or receiver), also in some little cases it doesn't record the call at all) i need someone (expert in this field) who can fix this issue and make it record calls perfectly in good recording quality for most of devices in the store. i know that some android devices doesn't support call recording, so.... i have two reference apps that i want to reach their recording quality and make my app support devices that these reference apps do. KINDLY read these deal rules CAREFULLY and if you will restrict with these points then i can proceed the deal with you: [login to view URL] of all, anyone will do this project he should find the solution first and send me fixed (test apk) of my app, if it works fine as one of the reference apps then ill hire him and create the milestone then ill pay him and release the milestone after he send me the finished work"final codes and signed apk) [login to view URL] the developer start finding solution, we will discuss the estimated time and cost, after we agreed then he will start finding the solution and send me fixed (test apk), and if he made it ill hire him. [login to view URL]'t get this project if you planning to "only make try if you can made it or not" (i only want someone who are sure he can did it and already has experience in this field) ill give you only few attempts and ill not waste your and my time doing failed attempts, i spend too much time trying failed attempts with developers and not fixed, so ill not loose more time [login to view URL] if you can't follow these rules don't submit your proposal, ill not work with anyone who will not agree with these rules. #REFERENCE APPS: 1. [login to view URL] 2. [login to view URL] HOPE i find the right person to do this task, and i have a lot of projects to do with him. Thanks......