From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: Wolfgang Fritz <wolfgang.fritz@gmx.net>, linux-kernel@vger.kernel.org
Subject: Re: [Asterisk] DTMF noise
Date: Fri, 10 Jan 2003 13:03:50 +0100 [thread overview]
Message-ID: <200301101303.50046.roy@karlsbakk.net> (raw)
In-Reply-To: <3E1D79CB.5010503@gmx.net>
> My simple patch added a relative energy comparision of the DTMF tones
> and a simple plausibiltity check (DTMF is only accepted if there is
> exactly one DTNF pair and no/low signal level on the other DTMF
> frequencies. That worked with my (very limited) tests.
I'm not sure if we're at the source of the problem. I mean - it should be
possible to set a minimum length as well, so just touching a key won't be
accepted. I beleive this'll remove most of the falsly detected dtmf signals
as well, as noone really holds the same tone for a long time while speaking
roy
--
Roy Sigurd Karlsbakk, Datavaktmester
ProntoTV AS - http://www.pronto.tv/
Tel: +47 9801 3356
Computers are like air conditioners.
They stop working when you open Windows.
next prev parent reply other threads:[~2003-01-10 11:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030107140012$1b66@gated-at.bofh.it>
[not found] ` <20030107150006$4896@gated-at.bofh.it>
2003-01-07 19:08 ` [Asterisk] DTMF noise Thomas Tonino
2003-01-07 22:46 ` Roy Sigurd Karlsbakk
2003-01-08 7:51 ` Thomas Tonino
2003-01-08 12:43 ` David D. Hagood
2003-01-08 13:04 ` Matti Aarnio
2003-01-08 15:49 ` Wolfgang Fritz
2003-01-08 16:30 ` Wolfgang Fritz
2003-01-08 19:48 ` Andrew McGregor
2003-01-08 22:19 ` Jamie Lokier
2003-01-09 12:51 ` David D. Hagood
2003-01-09 13:31 ` Wolfgang Fritz
2003-01-09 23:32 ` David D. Hagood
2003-01-10 6:52 ` Matti Aarnio
2003-01-10 12:42 ` David D. Hagood
2003-01-10 12:03 ` Roy Sigurd Karlsbakk [this message]
2003-01-08 20:22 ` Thomas Tonino
2003-01-09 12:42 ` David D. Hagood
2003-01-07 13:55 Roy Sigurd Karlsbakk
2003-01-07 14:49 ` [Asterisk] " Mark Spencer
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