Re: [Kaldi-developers] DTMF, dialtone and ringtone examples

[Chiwei C. <ch...@vo...>]

Hello, premature idea, did we try to simply “record” these tone with some real phones (analog, digital phone are just re-synthesize) pressing?

From: Daniel Povey [mailto:dp...@gm...]
Sent: Thursday, April 30, 2015 11:35 AM
To: kal...@li...
Cc: David Snyder
Subject: [Kaldi-developers] DTMF, dialtone and ringtone examples

Everyone,
I want to add some code for DTMF, dialtone and ringtone detection and removal, to help clean up training data and hopefully to be used in telephone applications.  However, it seems hard to find "real-world" examples of these kinds of tones in speech.  Does anyone have any idea where we could find data with these tones in it?  We could consider non-releasable data, as it's possible to just tune the methods on it but not release the setup.
Dan