[App_rpt] Recording repeater audio

Jon Richardson jon at richardson.net
Sun Oct 5 01:18:29 EDT 2008


Hey Jim,

Ever the voice of controversy - I disagree with you. LAME encodes at 
faster than real-time on reasonable spec hardware (P3 2.4Ghz for example 
will do 2x 48Khz streams). For example, to capture directly from a sound 
device and write to MP3 natively you can use sox to do the I/O and pipe 
it to lame, as below.

sox -t ossdsp -w -s -r 44100 -c 2 /dev/dsp -t raw - | lame -x -m s - 
.filename`date +%b%d_%H%M%P_%Y`.mp3

I don't know how "accessible" the raw commands are to app_rpt but it 
shouldn't be too tricky to do...

73 Jon G7PFT


Jim Duuuude wrote:
> convert to MP3 in real time on a telecom system? Surely you jest :-). 
> The cpu time required for that (especially on smaller systems) would 
> be MOST prohibitive.
> Therefore, its *really* designed to have a queue of native format 
> messages (and log files, also) get copied to a larger server on a 
> periodic basis and let the
> large server with big CPU's handle the MP3 crunching.
>
> ------------------------------------------------------------------------
> Date: Sat, 4 Oct 2008 22:10:11 +0100
> From: g4rky at yahoo.co.uk
> To: app_rpt at lists.illiana.net
> Subject: Re: [App_rpt] Recording repeater audio
>
> Thanks to everyone who replied.
>  
> I've found it now and it works a treat!
>  
> Are there any other options I can use with that command, for example, 
> to change to MP3 format or something?
>  
> If not, no problem - its working well and seems to require about 8Kb / 
> sec of disc space, which equates to almost 700 hours for a 20Gb 
> partition..
>  
> Cool!  Thanks,
>  
> Matt
> G4RKY
>
> 2008/10/4 Steven Henke <steve.w9sh at gmail.com 
> <mailto:steve.w9sh at gmail.com>>
>
>     Rodger,
>
>     The 'locate' command can be used to find it.
>     It's in
>     /usr/src/EVB/ast_base/asterisk-1.4.21.2/configs/rpt.conf.sample
>     You're right that we should make an obvious link to it in the web
>     based documentation
>
>     73,
>
>     Steve
>
>     On Sat, Oct 4, 2008 at 8:46 AM, Roger F. Jordan Sr.
>     <w4rfj at comcast.net <mailto:w4rfj at comcast.net>> wrote:
>     > Hey Steve,
>     >
>     >        I did not find rpt.conf.sample in the /etc/asterisk
>     directory of the
>     > network install...  We could make it available in the XIPAR
>     downloads...
>     >
>     > VR
>     > Roger W4RFJ
>     > Xipar Application Engineer Extraordinaire
>     >
>     >
>     > -----Original Message-----
>     > From: app_rpt-bounces at lists.illiana.net
>     <mailto:app_rpt-bounces at lists.illiana.net>
>     > [mailto:app_rpt-bounces at lists.illiana.net
>     <mailto:app_rpt-bounces at lists.illiana.net>] On Behalf Of Steven Henke
>     > Sent: Thursday, October 02, 2008 5:52 PM
>     > To: Asterisk Repeater Controler
>     > Subject: Re: [App_rpt] Recording repeater audio
>     >
>     > It's already in there. Check out the rpt.conf sample file...
>     > 73, Steve W9SH
>     >
>     >
>     > On Thu, Oct 2, 2008 at 3:57 PM, Matt Beasant <g4rky at yahoo.co.uk
>     <mailto:g4rky at yahoo.co.uk>> wrote:
>     >> Hi everyone,
>     >>
>     >> Does anyone know a way of recording the traffic (audio)  in /
>     out of the
>     >> node and saving it as a file ( MP3 or whatever ) on the node
>     hard drive?
>     >>
>     >> Something along the lines of Scanrec, which is a windows
>     application with
>     >> built in Vox and timestamps, would be ideal but I wanted to
>     avoid having
>     >> another machine involved.
>     >>
>     >> Anyone any ideas or thoughts on how this could be done - I
>     should add that
>     >> I'm a complete newbie!
>     >>
>     >> Thanks in advance for any replies.
>     >>
>     >> 73,
>     >>
>     >> Matt
>     >> G4RKY
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>     >>
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