[App_rpt-users] Streaming questions

Steve Passmore k6kya at hokeynet.net
Fri Sep 23 01:00:13 EDT 2011


I don't believe wav is a stream-able protocol.  The metallic sound is 
more an artifact of compression than the protocol used.   You might try 
bumping up the bitrate and/or adding a lowpass filter to strip off the 
highest  frequencies,  this is commonly done with stream encoders.  I've 
added a lowpass filter to remove PL.  I imagine you could do high pass 
the same way.   Here's what I use.

outstreamcmd=/bin/sh,-c,/usr/bin/lame --preset cbr 24 --highpass 0.2 -r 
-m m -s 8 --bitwidth 16 - -  | /usr/bin/ezstream -c /etc/ezstream.xml

Steve

On 9/22/2011 7:47, Jim Duuuude wrote:
> I understand. Some people just don't like a "metallic sound". I'm not 
> sure what other options
> are readily available. Certainly if you want more of a "dubstep" 
> sound, perhaps you should
> pipe the stream through something like "zcat". That would certainly 
> make it more "dubstep"-like. :-)
>
> Seriously, I don't think any of those streaming server things will 
> accept anything other then mp3 (or ogg)
> Believe me, it was *not* done by any of my choice (being that mp3 is 
> certainly *not* my favorite
> codec for ANYTHING!).
>
> JIM WB6NIL
>
> > Date: Thu, 22 Sep 2011 07:39:54 -0700
> > From: kt9ac at ameritech.net
> > To: App_rpt-users at ohnosec.org
> > Subject: [App_rpt-users] Streaming questions
> >
> > Good Morning,
> > I have Icecast, Ezstream and Lame all working together to output 
> audio from Asterisk. Currently using .mp3 format from the setup 
> examples but not happy with the audio quality (has a metallic 
> background sound to it).
> >
> > Is there a way to output WAV file audio instead of MP3? I've tried 
> different settings for LAME but it doesn't help. I know that Asterisk 
> has great audio written to the log files, so why can't I use this 
> instead of piping through Lame?
> >
> > Secondly, would anyone be willing to share an Icecast/Ezstream XML 
> example that does not require the filename extensions (i.e 
> http://localhost:8000/Filename.mp3)? I would like to just publish the 
> basic URL and port (http://localhost:8000). We used to do this with a 
> Windows Media Server before consolidating on one Linux server.
> >
> > Thanks for any help.
> >
> > Tony
> > _______________________________________________
> > App_rpt-users mailing list
> > App_rpt-users at ohnosec.org
> > http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
>
>
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