1*05767d91SRobert Wu# Android FXLab 2*05767d91SRobert Wu 3*05767d91SRobert Wu## Features 4*05767d91SRobert WuThis app performs real-time audio effects with low latency using the [oboe](https://www.github.com/google/oboe) API. 5*05767d91SRobert Wu 6*05767d91SRobert WuThe audio effects are written natively (in C++), with Kotlin used for the UI. 7*05767d91SRobert Wu 8*05767d91SRobert WuSupported features include a linear pipeline of real-time effects with re-ordering, enable/disable, and parameter modification. 9*05767d91SRobert Wu 10*05767d91SRobert WuThe effects used should be portable as they operate entirely on numeric type iterators. 11*05767d91SRobert Wu 12*05767d91SRobert Wu## Setup 13*05767d91SRobert WuConnect the android device to the correct audio input and output devices. A simple use-case could be a headset with a microphone while singing or playing an acoustic instrument near the mic. More complicated setups could involve USB audio interfaces, devices such as the iRig 2 interface for guitar effects/amplification or routing audio output to a computer for a recording. 14*05767d91SRobert Wu 15*05767d91SRobert Wu## Layout 16*05767d91SRobert Wu 17*05767d91SRobert Wu 18*05767d91SRobert Wu 19*05767d91SRobert WuTap the plus button to add various effects. The current list of effects being applied to the input audio will be shown on the main screen (in order from top to bottom). Use the drag handles on the right of the effect to re-order the effects. Swiping the effect near the title to the right or left will remove the effect. Use the sliders to modify the parameters of each audio effect. Some effect combinations or parameters might lead to unpleasant sounds! 20*05767d91SRobert Wu 21*05767d91SRobert WuBy default the sound output is off when you start the app (this is to avoid a feedback loop if you're not using headphones). Tap the "Unmute" button in the top right corner to enable sound output. 22*05767d91SRobert Wu 23*05767d91SRobert Wu## Development 24*05767d91SRobert Wu 25*05767d91SRobert WuA guide to the code, as well as a pdf of a slideshow discussing the code in depth are in the [docs](docs) folder. 26*05767d91SRobert Wu 27*05767d91SRobert Wu## Credits 28*05767d91SRobert WuThis app was written by [Atneya Nair](https://www.github.com/atneya) 29*05767d91SRobert Wuas a sample app using Oboe to publish on the Play store for an internship on 30*05767d91SRobert Wuthe Android Audio team at Google. 31
