Audio MODEM
Free App
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About Audio MODEM
This application enables the user to transmit data between air-gapped devices using audio.
It uses a simple MODEM algorithm to enable the user to send and receive short data messages (up to 250 bytes, within up to 3 seconds) between nearby phones or computers, utilizing the sender's speaker and the receiver's microphone.
Please use GitHub (https://github.com/romanz/audiomodem-android/issues) to report any issue you have with the application.
You can also use the following Python implementation (https://github.com/romanz/amodem) to communicate with a computer.
It uses a simple MODEM algorithm to enable the user to send and receive short data messages (up to 250 bytes, within up to 3 seconds) between nearby phones or computers, utilizing the sender's speaker and the receiver's microphone.
Please use GitHub (https://github.com/romanz/audiomodem-android/issues) to report any issue you have with the application.
You can also use the following Python implementation (https://github.com/romanz/amodem) to communicate with a computer.
All Application Badges
Free
downl.
downl.
Android
3.0+
3.0+
Android app
App History & Updates
What's Changed
Initial version for Audio MODEM Android application.
Initial version for Audio MODEM Android application.
More downloads Audio MODEM reached 1 000 - 5 000 downloads
More downloads Audio MODEM reached 500 - 1 000 downloads
More downloads Audio MODEM reached 100 - 500 downloads
What are users saying about Audio MODEM
C
by C####:
by C####:
Fun to play with, you think encryption can be implimented?
Z
by Z####:
by Z####:
Best way to easily transfer links between my old devices. Very fast.
J
by J####:
by J####:
Really cool app!
Q
by Q####:
by Q####:
2nd Review after a while of use: While the transmission stream sounded fine, I don't quite get why there is a beep at the preamble of the transmission, couldn't it sound like the rest of the TX stream or could it be omitted? It seems to bother me because a actual radio TX I know if don't usually have a distinct sound at the beginning—in fact, it kind of sounds like my notification beeping sound.
Q
by Q####:
by Q####:
One of a kind App. I like the idea very much. Could this be modified to act as a coupling to the Phone Audio so that a Smartphone could be used to connect with a Fax machine? If so you could add a RIP interface for documents and have the worlds first true Direct Smartphone Fax !!! Much money $$$ :-D
Q
by Q####:
by Q####:
Can't wait to connect this to an fm xmtr or walkie talkie to see if it works. Kinda wish you didn't have to press receive every time but not a big deal. I'm sure I'll be use the python code anyway.
F
by F####:
by F####:
My only limit is that it only allows text up to 250 bytes. It would be much nicer if I could transfer files, or at least an unlimited amount of text! I would support this any day!
Q
by Q####:
by Q####:
Ultimate use of tone... roman i wud like to know the algorithm u have written to implement this app..
Q
by Q####:
by Q####:
Wow amazing
E
by E####:
by E####:
Super fast! Works on my old devices! Thanks!
K
by K####:
by K####:
Thanks for the link to github.
K
by K####:
by K####:
Now all it needs is a way to broadcast this digital signal via radio!
D
by D####:
by D####:
Works great and is reliable at up to 40 cm between two phones.
X
by X####:
by X####:
Tested the application with multiple phones, keep getting bad checksum error.
by Z####:
This app works great and has alot of potential, ome thing I would like to see added is a higher file size limit (I like using it to transmit my html code around )