ASR straight from P25 IMBE codec parameters — skip audio reconstruction entirely and go from the digital bitstream to text. 290M Conformer-CTC, 3.35% WER with included language model on ...
The phrase "enhanced vocoder" — not "IMBE vocoder," not "half-rate vocoder" — confirms BABG is about testing something beyond the original IMBE baseline. In the TDMA context, this is the dual-rate ...
Abstract: APCO Project 25 (P25) digital radios became widespread for either government or personal communication in the last two decades. Since the P25 standards are quite old, performance of its ...
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