Codec2Talkie

Turn your Android phone into Codec2 Walkie-Talkie
AppID:com.radio.codec2talkie
Author:sh123
License:GPL-2.0-only
Donation:
InRepoSince:2022-06-19
LastRepoUpdate:2024-02-21
LastAppUpdate:2024-02-20
LastVersion:1.71
Categories:Connectivity
APK source:Github
Google Play:Check if it's there
icon

With Codec2 Talkie you can turn your Android phone into real VHF/UHF Walkie-Talkie (requires additional digital radio hardware/software modem). This minimalistic Android application is a Walkie-Talkie style digital voice frontend for your radio modem, which uses open source Codec2 for speech audio frame encoding/decoding.

It is mainly intended for DV experimentation with ultra low cost 3-8 dollar radio modems, such as LoRa and 15-25 dollar ESP32 board flavours with built-in LoRa module: T-Beam, LoPy, TTGO, Heltec and others, but could also be used with custom hardware of software (Direwolf) modems + external transceivers or as a test harness for Codec2 frames generation and their playback.

Application connects to your radio KISS Bluetooth/USB/TCPIP modem, records speech from the phone microphone on transmit, encodes audio into Codec2 format, encapsulates into KISS frames and sends to your modem. On receive, modem sends KISS packets to the phone with Codec2 speech, application decodes Codec2 samples and plays them through phone speaker.

It does not deal with radio management, modulation, etc, it is up to your modem and radio, it could be just AFSK1200, GMSK 9600, LoRa, FSK, FreeDV or any other modulation scheme. Radio just needs to expose KISS Bluetooth/USB/TCPIP interface for speech frames.

Download Website Source Issues ChangeLog
screenshot.jpg screenshot_settings.jpg
While you can download the APKs here directly, you should preferably use an F-Droid client so the app stays up-to-date on your device. Some clients have this repo enabled by default, e.g. Neo Store or, of course, the IzzyOnDroid client by Sunil. With others (like the official client) you'll have to add this repo manually (see the hint on top of the package list for how to do that).

Packages

Version 1.71 (2024-02-21)

Android Versions:
  • Target: 11.0
  • MinVer: 6.0
  • ABIs: arm64-v8a,armeabi-v7a,x86,x86_64
Permissions: help icon
Features:
Malware-Check:Notif help icon
45 Libraries detected: help icon

Download (8.9 M)

Version 1.70 (2024-02-20)

Version 1.69 (2024-02-19)