[op25-dev] Re: OP25 GRC - Almost but not quite working

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/op25-dev@lists.osmocom.org/.

argilo314 argilo at gmail.com
Sat Jun 9 16:17:51 UTC 2012

I'm getting the same issue with the sound: speech is intelligible but with a strong warble that makes it sound like talking through a fan.  I had a quick look at the waveform and spectrum of the output but didn't spot any obvious problems there.  Not knowing IMBE, I couldn't get far with the code.  Any ideas?

- Clayton

--- In op25-dev at yahoogroups.com, "rrgsti" <bobrich at ...> wrote:
> Basically looking at bit 113 (only) seems to indicate whether or not it's a voice frame of some sort.  The audio still sounds like everyone is talking through a fan, but there are no dropouts, no clicks, no stutters, etc.  
> I could not find anything resembling a DUID or NAC in the headers.  If anyone has a suggestion to de-warble the audio, I would greatly appreciate it.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osmocom.org/pipermail/op25-dev/attachments/20120609/a63bbebc/attachment.htm>

More information about the op25-dev mailing list