Audio decoding with selective post filtering
Номер патента: CA3160488A1
Опубликовано: 05-01-2012
Автор(ы): Barbara Resch, Kristofer KJÖRLING, Lars Villemoes
Принадлежит: DOLBY INTERNATIONAL AB
Опубликовано: 05-01-2012
Автор(ы): Barbara Resch, Kristofer KJÖRLING, Lars Villemoes
Принадлежит: DOLBY INTERNATIONAL AB
Реферат: A method for decoding a bit stream signal as an audio time signal is described herein. The method includes decoding the bit stream signal as a preliminary audio time signal according to a decoding mode selected from a plurality of decoding modes. The plurality of decoding modes includes at least a first decoding mode which includes a post-filtering step and at least a second decoding mode which does not include the post-filtering step. The post-filtering step applies a pitch-enhancement filter to the preliminary audio time signal, thereby obtaining the audio time signal. The post-filtering step is selectively omitted responsive to post-filtering information encoded in the bit stream signal. The post-filtering information indicates an encoder-side decision of whether or not to omit the post-filtering step, whereby the post-filtering step is selectively omitted in the first decoding mode.
Audio decoding with selective post filtering
Номер патента: CA3239015A1. Автор: Lars Villemoes,Kristofer KJÖRLING,Barbara Resch. Владелец: DOLBY INTERNATIONAL AB. Дата публикации: 2012-01-05.