ANSI Approves 3 SCTE Standards

The American National Standards Institute has approved three SCTE standards.ANSI/SCTE 24-24 2013, "iLBCv2.0 Speech Codec Specification for Voice over IP Applications in Cable Telephony," contains the description of an algorithm for coding of speech signals sampled at 8 kHz. Some of the applications for which this coder is intended are real-time communications such as telephony and videoconferencing, streaming audio, archival, and messaging.ANSI/SCTE 138 2013, "Stream Conditioning for Switching of Addressable Content in Digital Television Receivers," describes the stream conditioning required to enable client-DPI receivers to implement switching in a both non-seamless fashion ("Level 0" or "L0"), and in a seamless fashion ("Level 1" or "L1").ANSI/SCTE 145 2013, "Test Method for Second Harmonic Distortion of Passives Using a Single Carrier," is intended to establish the standard methodology to measure second harmonic distortion in a cable system passive at high signal level conditions (50-60 dBmV).All three standards are available at http://www.scte.org/standards/Standards_Available.aspx.