I am designing an app to play backing tracks for my piano compositions. Each “track” will consist of 4 individual tracks with the following combinations (in m4a or mp3 or ? – I can supply the tracks in whichever format is best):
backing track only
backing track + metronome click track
backing track + piano
When the user selects a track to play one of the above options will be played (according to which option they chose). I will provide all the backing tracks.
- develop (suggest appropriate hosting for) a server where my tracks are stored
- work within opensource software (core audio, dirac LE, ?) to allow the app to play m4a (or mp3) tracks slower or faster without changing the pitch (range is up to 50% slower and 30% faster):
examples of apps that do this: Audiostretch, Tempo Slo Mo, Slow Down Music Player
- the app should be capable of:
- downloading and caching tracks within the app
- organising these tracks according to : alphabetically, by level of difficulty, albums, free/purchased
- play, pause, search within the track
- slow down and speed up the music before playback commences and during the track with no change in pitch (this is expressed as a percentage of the original tempo – up to 50% slower and 30% faster in 1% increments). Does not necessarily need to do this in “real time” - the user can press “pause” and then adjust the tempo rather than being able to adjust the speed during playback of the track.
- “loop” the piece or sections within the piece
- support in-app purchases (tracks can be bought as single tracks or as packs)
I have a preliminary design done (with a list of screens, colour schemes, screenshots of apps that I wish to emulate, etc.).
24 freelanceria on tarjonnut keskimäärin 1667 $ tähän työhön
HI, We are interested to discuss this opportunity further, Kindly check your PMB for more information and revert, Looking forward to hear back.
Hi, I am interested in developing this 'backing track' app for you as I have the required expertise. For further details, please check inbox. regards,
Hello, We have extreme knowledge in ios applications. We believe in quality, time, excellent communication and smart work. We can develop the app for you very effectively. Please see PMB for more details. Thanks.
Hi, We are off shore based Smart Phone Applications/ Web Development Company working since 5 years. Please find the detailed bid in your PMB. Thanks VP Rich Technologies
Hi, We are one of the best developer on freelancer. We can provide you a excellent solution as we are professional and experience. Read my PM for your ultimate solution. Have a nice day.
Hi! how are you? We are looking for the long term business relationship with you and We have all strength and ability to do and develop all kind of apps and games. Please read my pm so we can move further.. thanks