If sox –r does resampling, then it should be fine – I use something similar to stream the ulaw files to my DSTAR machine (the streaming software wants a wav file).

You may find it helpful to adjust the volume using –v

For example, this turns it down a bit

sox –v -0.6 newsline.mp3 -r 8000 temp.wav

Some of the bulletins give you a place to insert a voice ID – and for that you need Audacity, or similar.

73

Ken

From: Tim Sawyer [mailto:tim.sawyer@mac.com]
Sent: Wednesday, May 28, 2014 12:33 AM
To: Bob
Cc: Ken; app_rpt-users@ohnosec.org
Subject: Re: [App_rpt-users] Playing mp3 files in app_rpt

It’s real simple to convert .mp3 to a .wav file:

sox newsline.mp3 -r 8000 temp.wav

The trick is installing SOX with LAME. I found the attached procedure worked for me.