RADE, a neural autoencoder with OFDM modulation, transmits speech over HF radio with up to 13 dB better intelligibility than SSB at the same signal-to-noise ratio.
We use 20-dimensional feature vectors f that consist of 18 Bark-scale cepstral coefficients, the pitch period, and a voicing parameter
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RADE: A Neural Codec for Transmitting Speech over HF Radio Channels
RADE, a neural autoencoder with OFDM modulation, transmits speech over HF radio with up to 13 dB better intelligibility than SSB at the same signal-to-noise ratio.