I am trying to capture audio through Line IN, apply a 10 millisecond delay, then playback through Headphones out. I haven’t implemented the delay yet - just trying to get audio capture and playback working.
I can capture Line IN audio:
gst-launch-1.0 alsasrc ! imxmp3audioenc ! filesink location=test.mp3
And playback the mp3:
gst-launch-1.0 filesrc location=test.mp3 typefind=true ! decodebin ! alsasink device=hw:0,0
But I can’t capture from alsasrc and send it to alsasink:
gst-launch-1.0 alsasrc ! alsasink device=hw:0,0
I even tried turning it into MP3 first. I get some choppy audio, then it cuts out:
gst-launch-1.0 alsasrc ! imxmp3audioenc ! decodebin ! alsasink device=hw:0,0
Is there something I need to put between the
alsasink to play the Line IN out the Headphone? After I get this working, I’ll apply a configurable delay to the audio using a gstreamer plugin, so it’s not as simple as splitting the headphone jack coming into the Colibri Evaluation Board.