MobiGater

Original DTMF code "111" generated by Audacity 1.3, 3 seconds duration

http://www.filedropper.com/dtmf1113s


The same file played by Asterisk + Celliax
and recorded by Audacity

http://www.filedropper.com/dtmf111s3asterisk

Signal drops has been manually repaired ( select + copy + paste
into no-signal periods)



Please open by Audacity and select
Analyze / Plot Spectrum
from menu

Open 2 above files in 2 instances of Audacity to get a view
of 2 audio spectrums plotted side by side.


It looks like Asterisk + Celliax runs underpowered in processing of
audio files played as MusicOnHold.


More tests to come soon.

Please let me know your opinion.

(07-03-2010 23:44)darius Wrote: [ -> ]Original DTMF code "111" generated by Audacity 1.3, 3 seconds duration

http://www.filedropper.com/dtmf1113s


The same file played by Asterisk + Celliax
and recorded by Audacity

http://www.filedropper.com/dtmf111s3asterisk

Signal drops has been manually repaired ( select + copy + paste
into no-signal periods)



Please open by Audacity and select
Analyze / Plot Spectrum
from menu

Open 2 above files in 2 instances of Audacity to get a view
of 2 audio spectrums plotted side by side.


It looks like Asterisk + Celliax runs underpowered in processing of
audio files played as MusicOnHold.


More tests to come soon.

Please let me know your opinion.

follow up, another test

First audio file is 10 s chirp generated by Audacity and saved as 8000 Hz, 16 bits wav PCM file
to be played as Asterisk's MusicOnHold file

The second audio file is the 1st file played by Asterisk + Celliax and recorded by Audacity.

Look at signal drops

http://www.filedropper.com/chirp10s

http://www.filedropper.com/chirp10sasterisk