Snapshot is an important function of live sound reinforcement digital mixer. It is rooted in the concept of Console Automation in the post-production process. The mixer snapshot function can record the channel switch, fader scale, input and output routing, signal processing and other parameters in a certain working state, and quickly call or switch to a certain state when needed. In today's increasingly diverse and complex performances, in the face of more and more input and output channels, when complex and fast processing of these signals is required, the snapshot function becomes more and more important.
The snapshot function is mainly used in dramas (dramas, musicals, etc.), music festivals, concerts, TV talent shows, comprehensive evening parties, comprehensive concerts, commercial shows, etc. A common feature of these usage scenarios is that they are in a performance There are totally different performance forms or totally different requirements for the same performance form, and the mixer needs to be able to quickly switch according to these requirements.
▲Take the snapshot interface of the Allen&Heath mixer as an example
Teacher Ji first shared the two working habits of creating and saving snapshots and their specific steps: "New + Save As", "Overwrite Save", "New + Save As" is suitable for situations where there is a large difference in programs and sufficient time to go. , "Overwrite and save" is more practical for performances with tight time on the stage.
The Recall Scope determines which parameters the mixer will recall when the operator performs the "recall" operation. The calling range is divided into two levels. The first level is the Global Scope, which specifies the parameter recall of all snapshots in the mixer, and can determine whether a certain parameter of all snapshots in the mixer is to be recalled. The second level is the single snapshot call range (Recall Filter/Scope), which specifies the parameter recall of a specific snapshot. The user can decide whether to recall some parameters of a certain snapshot according to the actual needs of the performance.
Corresponding to the recall is the Global Safe setting, that is, when the mixer performs the recall operation, the "isolated" channels or parameters will remain in the current state without any change. There are two ways to set global isolation: one is to isolate the entire channel through the isolation switch (Safe/Isolate/Automation Recall Protection) on the channel, and the other is to isolate the entire channel through the global isolation list (Global Safe/Global Filter). Specific parameters are isolated. Global isolation is very suitable for output channels that require frequent adjustment of certain parameters or do not want to be affected by snapshots, such as host microphone and director microphone.
