Live streaming Audio from iOS

1
votes

I have tried to live stream audio (AAC-LC) from iOS for 3 months without much success...

  • I tried Audio Queues, which work well but there is a strange delay (~4s) and I don't know why (high level API ?)
  • I tried Audio Units, it sometimes works on the simulator but never with the phone using a modified code from this source

I am really lost, can anyone help me ?

EDIT I have to do a live streaming application (iPhone-> Wowza Server via RTSP). The video part works well with little delay (1s). Now I'm trying to add audio in addition to video but I'm stuck with the SDK.

tldr : I need to capture microphone input then send AAC frames over the network without getting huge delay

1
iosaudiostreamingcore-audio
Without knowledge of the application and site of your code, chances of help are slim. I suggest improving your question. - marko
I edited a bit, hope it can help - HaneTV

1 Answers

1
votes

This app, which I just now completed, broadcasts audio between any two iOS devices on the same network:

https://drive.google.com/open?id=1tKgVl0X92SYvgpvbljRzilXNQ6iBcjqM

Compile it with the latest beta release of Xcode 9, and run it on two iOS 11 (beta) devices.

The app is simple; you launch it, and then start talking. Everything is automatic, from network connectivity to audio streaming.

Events generated by the app are displayed in an event log in the app:

enter image description here

Even though the code is simple and concise, the event log was provided to make understanding the app's architecture quicker and more easily.