Originally Posted by ontime

put here sample with this clicking noise



try this in xterm

Code:

amixer -qc0 set PGA 0

and

Code:

alsamixer -c0

When you click Tab, you'll see all capture settings. You can use arrow keys to adjust it.
or
You can use different audio source instead of 'source.hw0':

source.voice (hardware dsp)
source.record

Code:

gst-launch-0.10 -e pulsesrc device=source.record ! audio/x-raw-float,channels=1 ! audioconvert ! nokiaaacenc bitrate=64000 output-format=0 ! hantromp4mux ! audio/x-m4a ! filesink location=/home/user/MyDocs/audio.m4a

camera application vs gstreamer:
- audio bitrate - 128kbps vs you can choose
- audio rate - 48000Hz vs 44100Hz
- audio source - source.record vs you can choose (ad 2.)

- both has one channel
- the same codec - nokiaaacenc
- the same container - hantromp4mux

Code:

gst-inspect-0.10 nokiaaacenc

(0): RAW - AAC Raw format (it needs container)
(1): ADTS - Audio Data Transport Stream format (can be streams directly into playable aac file)
(2): ADIF - Audio Data Interchange Format