[arm-allstar] Audio problem

[Doug Crompton]

Tim,

  I realized you were converting to gsm. The convert_audio.sh script only
does wav to ul.  The header requires gsm as it combines files. To convert
wav to gsm do this -

sox -V input.wav -r 8000 -c 1 -t gsm output.gsm

I tried this here with a wav file and it seemed to work fine.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*






On Tue, Feb 25, 2020 at 4:23 PM "KY220GROUP--- via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> I am running the latest HamVoip release on a RPI3 with a RB-RIM. I have
> been changing some of my audio files to a different voice that I've found
> online. It has been working great for a couple of weeks so I decided to
> change my wx_header.gsm to the new voice. I am recording  the .wav file to
> audacity, mono, sample rate 8000Hz, sample format 16 bit, sample rate
> converter=Best Quality, High Quality conversion= High quality. Then using
> winSCP to transfer the file to my node. I then ssh to my server and use the
> following command to convert it to either a .gsm or .ul , whichever I need.
> sox -V wx_header.wav -r 8000 -c 1 -t ul wx_header.gsm The wx_header.gsm
> sounds like it is skipping with only a millisecond of audio every 2-3
> seconds.(attached sample if not stripped) I can play the same file as a
> .wav or .ul and they sound good but the .gsm is messed up. I have made
> other .gsm files over the last week and they work fine and sound good. Now
> all new GSM files that I create sound the same way as wx_header. If I play
> the wx_condition.sh KI35 47293 the header and weather sound the same,
> skipping all the way through. I am thinking it may be a rate error but
> can't figure out where to start looking  Any suggestions as always more
> than appreciated.
>
> 73
> Tim Webb - KK4WH
> https://www.qrz.com/db/KK4WHwww.facebook.com/kentucky220
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