Assempix - Decode COFDMTV vs Com-Phone Story Maker
Side-by-side comparison of two open source alternatives
Assempix - Decode COFDMTV
*Assempix* decodes COFDMTV encoded audio signals to images and is based on open-source software.COFDMTV is based on COFDM (coded orthogonal frequency-division multiplexing) technology:- 160 ms long OFDM symbols- 6.25 Hz per sub-carrier- 1/8 guard interval- differentially encoded PSK (phase-shift keying) modulation- systematic polar codes for forward error correctionFollowing modes are supported:Using SPC(64800, 43072):Mode 6: 8PSK, 2700 Hz BW and about 10 seconds longMode 7: 8PSK, 2500 Hz BW and about 11 seconds longMode 8: QPSK, 2500 Hz BW and about 16 seconds longMode 9: QPSK, 2250 Hz BW and about 18 seconds longUsing SPC(64512, 43072):Mode 10: 8PSK, 3200 Hz BW and about 9 seconds longMode 11: 8PSK, 2400 Hz BW and about 11 seconds longMode 12: QPSK, 2400 Hz BW and about 16 seconds longMode 13: QPSK, 1600 Hz BW and about 24 seconds longPayload must be smaller or equal to 5380 bytes.JPEG, PNG and WebP image formats are supported.Width and height are limited to between 16 and 1024 pixels.
Com-Phone Story Maker
Com-Phone Story Maker helps you create multimedia narratives, combining photos, audio and text in exciting ways to tell digital stories. The app's simple interface helps you create your own photo slideshows to document your life; send to other devices running the application or play back locally; create templates; export as a movie; upload to YouTube; or, save a web version to self-publish. Each story can include any number of media frames. Each individual frame of the story can include an image or photo, up to three layered audio or music tracks, and text content. Anything in a frame can be edited at any time – for example, you can pause audio recording and then resume later, or load pictures from your media library. All elements of each frame are optional. For example, Com-Phone can also be used as an annotated photo diary, a simple audio recorder, a text and sound tool for discussion about current events, or even a multimedia survey app. A simple printable user manual is available at: https://digitaleconomytoolkit.org/manuals/com-phone.pdf. Com-Phone is completely free, with no adverts and no unnecessary permissions. The app is open source as part of the Com-Me toolkit – you can fork any of the Com-Me tools on GitHub: https://github.com/communitymedia. For more information about the Com-Me project, see: https://digitaleconomytoolkit.org.
| Feature | Assempix - Decode COFDMTV | Com-Phone Story Maker |
|---|---|---|
| License | 0BSD | LGPL-3.0-only |
| Install sources | GitHubIzzyOnDroid | F-DroidGitHub |
| Categories | Media PlayerVideo | Media PlayerVideo |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |