User manual

Imagestore HDTV User Manual Standard Mixfiles

Miranda Technologies Ltd Page 229

5.1 Channel Mixfiles

Introduction

A set of related mixfiles are now provided to cater for 5.1 surround mixing

within the Imagestore audio engine. There are variations for AES and

embedded mixing, with Easyplay and/or external AES voice-over insertion.

All of the 5.1 mixfiles use the channel ordering presented below:

Mix Modes

To provide the maximum level of flexibility for 5.1 surround sound, three

common mix modes are provided for the Imagestore audio engine. These mix

modes allow a variety of common tasks to be performed by the dynamic

reconfiguration of the audio engine via the input select automation command,

substituting the “group” number with the mix mode number. The shuffles

required to tweak each mix mode can be triggered from a number of sources

including automation, the front panel, a PresMaster and GPI macros.

Please see page 232 for more detail.

Versatile Voice-over Shuffling

The majority of voice-overs in a surround-sound environment are performed

onto the stereo left, stereo right and centre outputs. To provide the maximum

level of flexibility for users, the voice-over shuffle matrix will allow free

mapping of each voice-over input onto the left, right and centre outputs.

These mixfiles have been designed to be as compatible as possible with the

PresMaster master control system. Easyplay versions of the 5.1 mixfiles offer

Stereo left

Stereo right

Centre

Surround left