[arm-allstar] Recording & Playing Audio Files

David McGough kb4fxc at inttek.net
Sat Apr 24 17:30:15 EDT 2021


Scott,

Here is one procedure I use:

For this example, on HamVoIP, the file is named: /tmp/file.mp3 ...So, scp 
the mp3 file onto the HamVoIP system.

Conversion and playing steps:

1) lame --decode /tmp/file.mp3 /tmp/file.wav

2) sox /tmp/file.wav -c 1 -r 8000 -t ul /tmp/file.ul

3) asterisk -rx 'rpt playback <node> /tmp/file'


Note that with various sox options you can change the volume level, 
normalize the audio levels, etc.

...That's it.

73, David KB4FXC


On Sat, 24 Apr 2021, "N4UPC via ARM-allstar" wrote:

> Is there a howto or other source for recording and playing custom audio files from a node?

I think I’m close to the correct method. First I record the audio file as a .mp3 via Audacity on a Win10 PC. Second I transfer the file to my node and convert it to a WAV file. Then I convert the WAV to a UL file, but still no luck. The node just keys up and silence is heard for a few seconds.

Thanks!

73,
Scott
N4UPC
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