Assempix - Decode COFDMTV
Android app by aicodix GmbH. Communication · aicodix GmbH
- Store rating
- Unknown
- Store rating count
- Unknown
- Download price
- Free to download
- In-app purchases
- Not listed in captured metadata
- Version
- 1.18
- Listing last refreshed
- 2026-09-14
View the original store listing
Store description excerpt
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 correction Following modes are supported: Using SPC(64800, 43072): Mode 6: 8PSK, 2700 Hz BW and about 10 seconds long Mode 7: 8PSK, 2500 Hz BW and about 11 seconds long Mode 8: QPSK, 2500 Hz BW and about 16 seconds long Mode 9: QPSK, 2250 Hz BW and about 18 seconds long Using SPC(64512, 43072): Mode 10: 8PSK, 3200 Hz BW and about 9 seconds long Mode 11: 8PSK, 2400 Hz BW and about 11 seconds long Mode 12: QPSK, 2400 Hz BW and about 16 seconds long Mode 13: QPSK, 1600 Hz BW and about 24 seconds long Payload 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.
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