Wiki: "Dual-tone multi-frequency signaling (DTMF) is used for telecommunication signaling over analog telephone lines in the voice-frequency band between telephone ...
The song "867-5309" in actual DTMF
Dual tone multi-frequency (DTMF) dialing 1-2-3-A-4-5-6-B-7-8-9-C-*-0-#-D in this order. Made with Audacity.
A slower telephone dial tone generated in Audacity with it's DTMF tone generator.
A telephone dial tone generated in Audacity with it's DTMF tone generator.
Tone dialing number - generated
Record of my cellphone pressing buttons 1-#.Used my headset mic to record this.background noise was removed with Audacity.the several beeps ...
Physical + beeping sound of clicking cellphone keys. Physical popping sound + electronic (DTMF-like) beeps. Siemens M55 mobile phone recorded ...
Sound produced to kick the soccer ball. Recorded by a Zoom H2
The countdown beeps of a bomb about to go off.
a bird singing in the city - rec with R1 - normalized, noise cleaned with Audacity1.3B