DialABC Logo
Contents
DialABC
Words
Numbers
Motion
Sound
DTMF
Generate
Explain
FAQ
Detect
Music
Anagrams
Links
About
Tools
DTMF-Tone Generation Frequently Asked Questions

Audio Formats

What audio file formats are available?

We can generate DTMF audio clips for these audio file formats:

  • Sun/NeXt Audio (.au) mono 8bit ulaw encoded at 8000 samples per second
  • Microsoft RIFF (.wav) mono 16bit PCM encoded at 8000, 16000, and 44100 samples per second
  • GSM 06.10 Lossy Speech Compression at 8000 samples per second

How can I get the DTMF into my favourite format?

There are many sound conversion utilities on the web, many of them are free. For instance, for unix (Linux, FreeBSD, Solaris), there is sox.

If you need to convert the DTMF sound clips, I suggest you start with the highest possible sampling rate. You can always downsample later on.

Ask Questions

If you have a question that is not already answered here, send us email.

Last updated Tuesday December 11 2012
For more info contact Zeebar Technology Services, Inc..
(C) Copyright 1996-2006 by Helmut Hissen and Zeebar Technology Services, Inc.
All rights reserved.
Zeebar Technology Services, Inc