atrac3p:serialized_quantization_unit_quantization_precisions
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| atrac3p:serialized_quantization_unit_quantization_precisions [2010/07/23 18:07] – megadiscman | atrac3p:serialized_quantization_unit_quantization_precisions [2010/07/23 18:08] (current) – base table -> prediction vector megadiscman | ||
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| === 3: prediction vector + delta encoded delta === | === 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 ==== | ==== Expansion Modes ==== | ||
atrac3p/serialized_quantization_unit_quantization_precisions.1279908478.txt.gz · Last modified: 2010/07/23 18:07 by megadiscman