Differences

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--- atrac3p:serialized_quantization_unit_quantization_precisions [2010/07/23 18:06] – quantizer -> quantization precision megadiscman
+++ atrac3p:serialized_quantization_unit_quantization_precisions [2010/07/23 18:08] (current) – base table -> prediction vector megadiscman
@@ Line 23: / Line 23: @@
 === 3: prediction vector + delta encoded delta ===
-A prediction vector and a delta table are combined just like in mode 1 for the master channel, but only the first entry of the delta table is directly encoded. All later entries of the delta table are huffman encoded differences to the previous entry of the delta table. The difference is stored modulo 8 (so a wrapping addition is used), resulting in a delta table containing the numbers 0 to 7. This delta table is then added after expansion to the base table.
+A prediction vector and a delta table are combined just like in mode 1 for the master channel, but only the first entry of the delta table is directly encoded. All later entries of the delta table are huffman encoded differences to the previous entry of the delta table. The difference is stored modulo 8 (so a wrapping addition is used), resulting in a delta table containing the numbers 0 to 7. This delta table is then added after expansion to the prediction vector.
 ==== Expansion Modes ====
@@ Line 31: / Line 31: @@
 === 1: Expand with zero ===
-Deltas are only stored for the first //n// quantization units (number is given in the bitstream), the delta table is expanded with zeroes (meaning no change to the base table)
+Deltas are only stored for the first //n// quantization units (number is given in the bitstream), the delta table is expanded with zeroes (meaning no change to the prediction vector)
 === 2 (on master channel): Expand with one ===