Displaying 5 results from an estimated 5 matches for "dbm0".
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2011 Oct 01
1
Converting dahdi_monitor unit to dbm0
Hello,
I need to convert the dahdi_monitor output to dBm0, so I can measure Echo
Return Loss in dB.
I've read a formula that calculate S(k) in ITU-T G.168 recommendation, where
S(k) is the signal level in dBm0. Can I use this formula to convert it? If
yes, what value should I use to the number of samples if I want to convert a
single output from dahdi...
2014 Jun 10
2
Overload Point for OPUS
Hello,
Can you please tell me what the overload point is for OPUS in dBm0 or dBV?
As an example, the G.711 A law codec has an overload point of +3.14 dBm0
across a 600 ohm circuit.
In ITU-T G.100.1 section 5.8 you can read more about the relationship
between dBm0 and dBov. In that same section you can see that the G.711 A
law, u law, and G.722 codec overload point...
2014 Jun 20
0
Overload Point for OPUS
...CM
saturation point and if you use the float implementation you can
actually encode and decode files that are much louder than +/- 1.0.
Cheers,
Jean-Marc
On 10/06/14 10:33 AM, Marc Marroquin wrote:
> Hello,
>
>
>
> Can you please tell me what the overload point is for OPUS in dBm0 or
> dBV? As an example, the G.711 A law codec has an overload point of
> +3.14 dBm0 across a 600 ohm circuit.
>
>
>
> In ITU-T G.100.1 section 5.8 you can read more about the relationship
> between dBm0 and dBov. In that same section you can see that the G.711
> A la...
2005 Mar 16
0
Obscure * command and audio questions
...as answers for.
Basically, I'm in the audio business and I hope to get better control of
the audio performance in *.
1. I seem to recall seeing a tonelist parameter that allowed tones to be
set at levels other than 0, for instance !1000/500@-20 would generate 1
kHz for half a second at -20 dBm0. But this doesn't work and I can't
find the original reference. Anyone?
2. In ztmonitor there is a bargraph for setting levels, and there's a
patch available in bug 2783 to show numeric values for the levels on tx
and rx paths. Has anyone calibrated these numbers to dBfs or dBm0? Th...
2004 Apr 18
4
Intel 536ep as a FXO?
Hi,
I've seen some reports about ruuning Intel modem with 537 or MD3200
chipset running with Zaptel drivers as a FXO port. Did anybody managed
to set up a PCI faxmodem based on Intel536ep chipset to work with * and
Zaptel drivers?
Modem seemd to work just fine with Linux, but the driver says no;)
some more info:
Linux 2.4.26
mazuchna:~# cat /proc/pci | grep 536
Communication