I have WowzaMediaServer 3.6.2 which serves approximately 150 H.264 & PCM mu-Law incoming RTMP streams from IP-cameras. Unfortunately audio channel has very low quality (8bit, 8000 Hz) and too noisy. Due to limitations of encoder there is no chance to reduce audio noise onboard the IP-camera.

Is it possible to develop Wowza module which processes input stream, demuxes audio, applies noise reduction filter and generates output RTMP stream with muxed audio and video channels? What Wowza Server Side API should I use to develop such a filter?