filtered from the signal to be transmitted. This leads to a reduction in the transmitted data
stream with no noticeable difference in sound for the listener (HE AAC v2 method as an
additional coding method for DAB+).
6.1.2
Audio
stream
In digital radio, audio streams are continuous data streams that contain MPEG 1 Audio
Layer 2 frames and thus represent acoustic information. This allows known radio
programmes to be broadcast and listened to on the receiver side.
Digital radio not only provides excellent sound quality, but also additional information.
This can be related to the current programme or independent of it (e.g. news, weather,
traffic, directions).
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