Complex sentence: Codec2 consists of 3200,2400,1600,1400,1300, and 1200 bit/s codecs, outperforming most other low-bitrate speech codecs.
Split into simpler sentences: Codec2 consists of 3200,2400,1600,1400,1300, and 1200 bit/s codec modes. It outperforming most other low-bitrate speech codecs.