I have 6 years of experiences with iOS app development. Especially I'm very experienced with iOS video/image/audio processing that including following functions: 1). Video Recording, Audio Recording - AVFoundation, AVAudioEngine, The Amazing Audio Engine, GPUImage, SCRecorder 2). Video Compose, Audio Mix - AVFoundation, GPUImage, The Amazing Audio Engine, AVAudioEngine 3). Video/Audio Streaming - WebRTC, FFMpeg 4). Image/Video recognition - OpenCV, Clarifai API, MPSCNN/VGGNet 5). Speech Recognition - SpeechRecognitionKit, SiriKit, CMP Sphinx/Pocket Sphinx 6). Advanced Image Processing - OpenCV, OpenGL, GPUImage, Metal