公开(公告)号：US09778899B2

公开(公告)日：2017-10-03

申请号：US14631177

申请日：2015-02-25

Applicant: INTEL CORPORATION

Inventor： Jaska Uimonen ,  Ismo Puustinen ,  Jan Ekstrom

IPC: H03G3/00 ,  G06F3/16 ,  H03G3/30 ,  H03G3/02 ,  H03G5/16 ,  H03G9/00 ,  H03G9/02

CPC classification number: G06F3/165 ,  H03G3/02 ,  H03G3/3005 ,  H03G5/165 ,  H03G9/005 ,  H03G9/025

Abstract: Techniques are disclosed for synchronizing gain adjustments across a cascaded network of audio gain stages having variant operating delays. In particular, a delay-synchronized volume adjustment system configured in accordance with an embodiment of the present disclosure includes a controller operatively coupled to the cascaded network of audio and configured to apply gain adjustments in a synchronized manner that accounts for operating delays that are inherent to each gain stage. In an embodiment, the controller synchronously adjusts each gain stage relative to a corresponding operating delay such that gain adjustments fully propagate at substantially a same point in time within a given acceptable tolerance, and thus, eliminates or otherwise mitigates perceivable volume shifts when mixing audio from two or more audio sources.