Android Record/Playback Library
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We need a set of source code for recording the microphone in an Android device to MP3 and also some playback features. We intend on creating the UI for the application but will require the winning bidder to create a test activity. This app should work from Android 2.1 to Android 4.2 and should be tested BY THE BIDDER on real devices prior to submitting the code to ourselves.
The following features are required:
Records to an MP3 file on the device itself.
Unlimited recording length.
Records even when phone screen is off and locked.
Optional silence omission (boolean flag passed to the class) which will pause the recording when silence is detected and resume when sound is heard.
Gain control and bitrate control set before recording and whilst recording is in progress (at least gain).
Must offer HIGH QUALITY recording.
Full recording control - Pause, Resume, Stop & Save.
Multispeed playback - Supply a float value and the playback speed changes. - 1f normal speed, [url removed, login to view] -150% speed, [url removed, login to view] - 50% speed etc
Get a list of recordings from the users device.
Prepare a recording for sharing via email etc (sample code to be included by the winning bidder)
Spectrum analyser view. - We want to be able to drop the custom view into a layout, give it an audio stream and it will display the visual sound. This view should auto resize to its parent (ie given a space within a RelativeLayout or a LinearLayout)
Full playback controls - Play, Pause, Seek to Position (slider and hh:mm:ss entry), volume.
We do not mind people using existing examples on the internet and reworking them, however, we do mind being supplied THE example with some extra bits and pieces added in. We require a set of source code that is custom written including only the methods and variables that are applicable to OUR project. The source code should be commented throughout and self explanatory variable names used. The test activity should show all required functions working without code intervention - it does not matter what it looks like (layout etc), just that all functions work as required.
We prefer fluent English speakers due to communication requirements. It is vitally important that the code is thoroughly tested on a REAL device, please do not bid if you only have an emulator to work with.
The required language for this project is Java (Android), please only use native C (for example) if you can also supply a wrapper class in Java.
There is a short timescale so commitment is necessary, please only bid if you feel you can do the work at the high level required WITHIN THE TIMESCALE given. All source code shall be become our intellectual property upon completion and we will have full rights to use it as we wish. Only high quality work shall be accepted.
Communication is also essential due to the small timescale on this project and any questions shall be answered promptly via email.
We have many other small projects in the pipeline and are looking to possibly form a working relationship with reliable high quality developers.
Thank you and good luck.
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