technology licence from DVSI is required. The patent for IMBE has expired. Codec2 is an open source alternative which uses half of the bandwidth of AMBE to...
5 KB (660 words) - 08:57, 21 July 2024
MP3 standard 700 bit/s – lowest bitrate open-source speech codec Codec2, but Codec2 sounds much better at 1.2 kbit/s 800 bit/s – minimum necessary for...
30 KB (3,421 words) - 13:52, 15 June 2024
chat. A number of codecs with even lower bit rates have been demonstrated. Codec2, which operates at bit rates as low as 450 bit/s, sees use in amateur radio...
16 KB (1,760 words) - 06:51, 10 September 2024
A/52 stream decoder (AC-3) libdca – a free DTS Coherent Acoustics decoder Codec2 – Low bitrate compression, primarily voice Free and open-source software...
9 KB (981 words) - 20:06, 4 August 2024
Low latency, Studio/transmitter link, wireless audio Yes Yes No No No Codec2 David Rowe 2010-08-25 1.2.0 (2023-07-14) Free ? c2enc, c2dec Low bandwidth...
69 KB (1,415 words) - 16:24, 2 October 2024
(RCELP) Low-delay CELP (LD-CELP) Adaptive Multi-Rate (used in GSM and 3GPP) Codec2 (noted for its lack of patent restrictions) Speex (noted for its lack of...
26 KB (3,284 words) - 10:05, 24 September 2024
standards: NVOC – used in China Spirit DSP RALCWI DSPINI SPR Robust TWELP Robust Codec2 libcodec2 RL-CELP (used in Japanese railways) U.S. Department of Defense...
48 KB (5,134 words) - 03:42, 10 October 2024
Link Repeater. FlexRadio Systems D-STAR equipment Transceivers—D-STAR, CODEC2, Analog FM Capable and all mode: FLEX-6700: HF-2m all mode including digital...
46 KB (6,203 words) - 21:00, 19 September 2024