TWELP Robust 1600 bps vocoder provides high speech quality as in clear channel as well as in noisy radio channel.

Unrobust TWELP 1600 bps vocoder provides more better speech quality in clear channel, but has worse robustness to channel errors.

TWELP 1600 bps Vocoder and TWELP Robust 1600 bps vocoders are available right now as an object libraries for any DSP, RISC and other platforms.

Please visit the following page for details:

TWELP 1600 bps Robust vocoder

Speech quality of the updated TWELP 300 bps vocoder is enough to provide voice communication in such hard conditions, where voice transmission was impossible earlier. Digital solution on the vocoder base provides reliable voice communication in channel with negative SNR down to -6 dB and worse, where usual analogue radio provides only noise in practice.

TWELP 300 bps Vocoder is available right now as an object library for any DSP, RISC and other platforms.

Please watch short DEMO-video with the TWELP 300 bps Vocoder usage:

DEMO-video

Please visit the following page for details:

TWELP 300 bps vocoder