7615 Dolby E Audio Sub Module for the 7550 and 7900 series (with AES I/O)

Audio Processing

The 7615 is an eight-channel sub module for use with the Avenue 7900 Series Up/Down/Cross Converters. It offers all the functionality of the 8415 sub module plus the ability to decode Dolby E signals. The 7615 has four channels of AES I/O. Embedded AES and Dolby E signals are disembedded, decoded if applicable, and presented on four BNCs. Alternately, AES and Dolby E can be re-embedded into the video stream. Dolby E, Dolby Digital/AC-3 and PCM are all supported. All audio processing is performed at full 24 bit resolution by a digital signal processor (DSP).

Lip Sync Preservation

The 7615 has been designed to provide superior handling of embedded audio. The disembedder on the input side follows the timing of the video input, even if that input is asynchronous to the house reference. The embedder on the output side is synchronous to house. This allows embedded audio to be safely bypassed around the video framestore with lip sync properly preserved.

Mix, Swap, and Shuffle

The 7615 provides a full-featured, eight-channel audio mixer for AES audio. It provides precise control over audio level, with up to 12 dB of gain to compensate for low level sources. The channel swap and shuffle capability allows you to completely rearrange and remix audio channels. Because the 7615 has simultaneous disembedding and embedding, it is an in-line processor for embedded audio. It can take embedded content, adjust levels and remap channels, and deliver it to the output as an embedded signal. In addition to the tracking delay functionality, audio delay can be manually adjusted through the Avenue control system.