ÿWPCL ûÿ2BJ|xÐ ° ÐÐÌÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿH øÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÌÐÐ °°°è ÐÑ Âx„|ü@Ž ÑÐ Å°6Ø'°6Ø'Å Ð8.ÁHÁÓÓÃÃAmendments to Recommendation G.711 (Fascicle III.3 of the Red Book)ÄÄ 8.1ÁHÁÃÃDeleteÄÄ Note 2 to Tables 3 and 4 and the associated small table. 8.2ÁHÁÃÃAddÄÄ a fourth paragraph to Note 3*: Ð H ÐÁHÁ"The A©ÀÀ©A transparency for bits 1 to 7 was achieved by modifying the table slightly from the optimum conversion in that ÀÀ©80 is converted to A©81 instead of A©80, and A©80 is converted to ÀÀ©79 instead of ÀÀ©80. This has an insignificant effect on quantizing distortion". 8.3ÁHÁÃÃAddÄÄ a new section 3.6 as follows: "3.6ÁHÁÃÃConversion to and from uniform PCMÄÄ ÁHÁEvery "decision value" and "quanitized value" of the A (resp. ÀÀ) law should be associated with a "uniform PCM value". (For a definition of "decision value" and "quantized value", see Recommendation G.701 and in particular Figure 2/G.701.) This requires the application of a 13 (14) bit uniform PCM code. The mapping from A©law PCM, and ÀÀ©law PCM, respectively, to the uniform code is given by Tables 1/G.711 and 2/G.711. The conversion to A©law or ÀÀ©law values from uniform PCM values corresponding to the decision values, is left to the individual equipment specification. One option is described in Recommendation G.721, ÀÀ 4.2.7 subblock COMPRESS.". 8.4ÁHÁÃÃAddÄÄ the following note to clarify the content of Tables 1/G.711 and 2/G.711: Ð h Ð"ÃÃNote 5ÄÄ © In Tables 1/G.711 and 2/G.711 the values of the uniform code are given in columns 3, 5 and 7." ÁHÁFurthermore, at the heads of Tables 1 and 2, the entry in column 7 should be changed as follows: Áà8JÁ"Quantized valueƒ Áà8JÁ(value at decoderƒ Áà8LÁoutput), Yn"ƒ 8.5ÁHÁÃÃInsertÄÄ a new section 4 and to renumber present section 4 as section 5: "4ÁHÁÃÃTransmission of character signalsÄÄ ÁHÁWhen character signals are transmitted serially, i.e. consecutively on one physical medium, bit No. 1 (polarity bit) is transmitted first and No. 8 (the least significant bit) last." 8.6ÁHÁThe following note should be added to new section 5: ÃÃNoteÄÄ © The use of another digital periodic sequence representing a nominal reference frequency of 1 020 Hz at a nominal level of ©10 dBm0 (preferred value, see Recommendation ÃÃO.XXÄÄ) or 0 dBm0 is acceptable, provided that the theoretical accuracy of that sequence does not differ more than ÃÃ+ÄÄ 0.03 dB from a level of ©10 dBm0 or 0 dBm0 respectively. In accordance with Recommendation ÃÃO.XXÄÄ, the specified frequency tolerance should be 1 020 Hz + 2 Hz, © 7 Hz. ÁHÁIf a sequence representing ©10 dBm0 is used, the nominal level at the voice frequency outputs should be ©10 dBm0.