Broadcom lanza un códec HD con licencia GPL

Dandome un receso de tanto trabajo estaba revisando la pagina de Elio Rojano quea empresa Broadcom ha lanzado un códec que muestrea a 16 Khz:

Broadcom (la empresa que hay detrás de los dispositivos de red) acaba de anunciar la disposición pública y libre de un códec que muestrea a 16Khz:

BroadVoice16 (BV16) for narrowband telephone-bandwidth speech sampled at 8 kHz,
and a 32 kb/s version called BroadVoice32 (BV32) for wideband speech sampled at 16 kHz.

Las ventajas:

• Low Delay (Latency): algorithmic buffering delay of merely 5 ms (compared with 15 to 40 ms of most competing codecs)


• Low Complexity: much lower MIPS requirements than most competing codecs (typically 1/3 to 1/2 of comparable ITU-T G.72x codecs), also lower memory requirement than most competing codecs


• High Quality: equivalent or better speech quality than most competing codecs in PESQ comparisons and in extensive formal subjective MOS listening tests conducted by AT&T Labs, COMSAT Labs, and Dynastat, Inc


• Moderate Bit-Rate: at 2 bits/sample, coding efficiency is higher than G.711, G.726, and G.722 and comparable to many other codecs


• Availability: Broadcom is providing both the floating-point and fixed-point C source code of BroadVoice16 and BroadVoice 32 under an open source license and on a royalty-free basis

Aquí les dejo el link de la noticia

NOTA:

Aquí les dejo una lista de los codecs que hay para Asterisk y el ancho de banda que utiliza, para más información visiten la página BYTECODERS:

• G.711 ulaw (utilizado en EEUU) (64 Kbps)


• G.711 alaw (utilizado en Europa) (64 Kbps)


• G.723.1 - pass-thru sin licencia (6.3/5.3Kbps) usado en H.323


• G.726 - (16/24/32/40kbps)


• G.729 - pass-thru sin licencia (8Kbps)


• GSM (13Kbps)


• iLBC (13.33/15.2Kbps)


• LPC10 (no recomendado!)


• Speex - configurable 4-48kbps

De paso les paso una imagen tomada de voiptoday: