Sound in sync

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Sound in Sync [ saʊnd ɪn sɪŋk ], also known as Sound-in-syncs in Great Britain , is a process in which the horizontal blanking interval of a PAL signal accommodates a digital, usually uncompressed audio signal instead of the conventional sync pulse and the black shoulders .

An additional decoder is required for playback . The method is therefore mainly used for internal transmissions between television stations , for example by the European Broadcasting Union .