Signal Lab
DTMF Decoder
Start listening
Microphone
Open tone tab
Upload audio
Clear
Copy
Decoded sequence
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1
2
3
A
4
5
6
B
7
8
9
C
*
0
#
D
Tone generator
Use this in a second tab, then share that tab's audio from the decoder tab.
Play 0–9 * #
1
2
3
A
4
5
6
B
7
8
9
C
*
0
#
D
Logs
No events yet. Connect a source to start.
Decoded sessions
Past sessions appear here when you start a new capture.