Digital transmission of high-quality sound-programme signals using one, two or three 64 kbit/s channels per mono signal (and up to six per stereo signal) Amendment 1: New Appendix II - Extracts from EBU specification of an ISDN Codec capable of delivering
The members of the EBU have recognized the need to use ISDN equipment implementing ITU-T Recommendation J.52 for the transmission of audio signals. It was necessary to vens, the interworking of equipment from different suppliers in order to allow international transmission. A series of tests was organized during 199711998 and it has shown an interworking capability between four codecs from different suppliers, but not at the bit rate required for contribution-quality transmission.