Audio Signal Experiment Workshop

Basic digital audio encoding systems

Current mode: Mf

• AFSK
• ASCII TO DTMF
• DTMF
• EXPERIMENTAL MODE
• MF
• MORSE
• SPECTRUM TEXT

String to encode (0-9,#,*,A,B,C): [required]

Total duration (in seconds): [required]

Digit spacing (in milliseconds): [required]

Amount to fade edges of tones (in milliseconds): [required]

Audio Sample Rate: 8000 11025 16000 22050 24000 32000 33075 40000 44100 48000

Volume: 0 10 20 30 40 50 60 70 80 90 100

MF tones are the predecessor of DTMF tones. Both were used in telephone systems before the digital conversion. MF tones are rare since they have been replaced by out-of-band digital signals in modern systems.

After submitting the form, the resulting file will download to your computer.