The SCTE has approved four standards: two on VoIP, one on test points, and another on optical fiber.SCTE 24-21 2012, "BV16 Speech Codec Specification for Voice over IP Applications in Cable Telephony," contains the description of the BV16 speech codec, which compresses 8 kHz sampled narrowband speech to a bit rate of 16 kbps by employing a speech coding algorithm called Two-Stage Noise Feedback Coding (TSNFC), developed by Broadcom.SCTE 24-23 2012, "BV32 Speech Codec Specification for Voice over IP Applications in Cable Telephony," contains the description of the BV32 speech codec, which compresses 16 kHz sampled wideband speech to a bit rate of 32 kbps by employing the TSNFC speech coding algorithm.SCTE 75 2012, "Test Point Accuracy," describes a procedure for evaluating the accuracy of internal and external RF test points as used to monitor input and output ports of cable equipment.SCTE 122 2012, "SCTE Recommended Optical Fiber Cable Types for Outside Plant Drop Applications," is intended to provide guidance in selection of a suitable outside plant (OSP) optical drop cable with respect to different application environments.All four standards are available at http://www.scte.org/standards/Standards_Available.aspx.
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