| 摘要 |
FIELD: physics, acoustics.SUBSTANCE: invention relates to audio signal processing. Sync signal is introduced into multichannel sound flow and comprises track identifier and frame counter for adaptive sound flow to be played back. Track identifier and adaptive sound received frame counter are compared with those contained in sync signal. In case any of the above does not comply with sync signal, changeover process smoothly decreases the adaptive sound track level and smoothly increases that of multichannel sound track. The system plays back said multichannel sound track unless track identifier and sync signal frame counter and track identifier and adaptive sound track frame counter coincide. Thereafter, the level of adaptive sound content is smoothly increased again.EFFECT: adequate synchronisation of sound and video content and sound transmission in side band of connection with Ethernet network.27 cl, 10 dwg |
