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[ DTMF TONE FREQUENCY ]

1 = 697 HZ AND 1209 HZ

2 = 697 HZ AND 1336 HZ

3 = 697 HZ AND 1477 HZ

4 = 770 HZ AND 1209 HZ

5 = 770 HZ AND 1336 HZ

6 = 770 HZ AND 1477 HZ

7 = 852 HZ AND 1209 HZ

8 = 852 HZ AND 1336 HZ

9 = 852 HZ AND 1477 HZ


	
= 941 HZ AND 1209 HZ


0 = 941 HZ AND 1336 HZ

# = 941 HZ AND 1477 HZ

MSG = HELLO LOL

DTMF

ENCRYPTED = 44*33*555*555*666*9*0555*666*555

H = 44

NEXT WORD = *

E = 33

NEXT WORD = *

L = 555

NEXT WORD = *

L = 555

NEXT WORD = *

O = 666

NEXT WORD = *

W = 9

NEXT WORD = *

SPACE = 0

L = 555

NEXT WORD = *

O = 666

NEXT WORD = *

L = 555

[ MANUALLY ENCRYPT ]

sox -n /home/whitex/o1.wav synth 0.1 sine 770 sine 1209 pad 0.2

sox -n /home/whitex/o2.wav synth 0.1 sine 770 sine 1209 pad 0.2

ETC ...

• AFTER CREATING ALL WAV FILES MEARG ALL FILES USING SOX

sox o1.wav o2.wav o3.wav final.wav

play final.wav

[ OR ]

[ ENCRYPT USING BASH SCRIPT ]

DTMF.SH

[ IF YOU ARE USING BASH SCRIPT FOR ENCRYPTION THEN PLEASE MEARG MANUALLY YOUR OUTPUT.WAV FILES ]

[ DTMF BINARY ENCRYPTION ]

[ YOU CAN ALSO HIDE YOUR DATA USING DTMF + BINARY FORMAT ]

[ FIRST CONVERT YOUR MSG TO BINARY ]

echo -n "good" | xxd -b

[ NOW CONVERT BINARY TO DTMF ]

sox -n o1.wav synth 0.1 sine 941 sine 1336 pad 0.2

sox -n o2.wav synth 0.1 sine 697 sine 1209 pad 0.2

[ DTMF DECODE ]

pip install --break-system-packages scipy

pip install --break-system-packages matplotlib

pip install --break-system-packages numpy

DTMF.py

python3 dtmf.py final.wav