Controller

Abstract

A controller remote-controlling a digital mixer which performs signal processing to an input signal by a DSP to output the processed signal is provided with functions of: accepting the setting of level of a dummy signal; calculating a gain of the signal processing at each stage in the DSP based on a value of a parameter used for the remote controlling; calculating level that the dummy signal would have at a reference point selected by a reference point selection button if the dummy signal is assumed to be inputted to the DSP, based on the level of the dummy signal and the calculated gain; and displaying the calculated level in a level display portion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing the configuration of a mixer system including a PC which is an embodiment of the controller of the invention and a digital mixer which is an example of a signal processing device controlled by the PC;

FIG. 2 is a diagram showing in more detail components involved in signal processing realized by a waveform I/O and a DSP shown in FIG. 1;

FIG. 3 is a diagram showing in more detail the structure of an input channel shown in FIG. 2;

FIG. 4 is a diagram showing in more detail the structure of an output channel shown in FIG. 2;

FIG. 5 is a view showing a display example of a dummy input setting screen displayed on the PC shown in FIG. 1;

FIG. 6 is a view showing a display example of a level display screen displayed on the same PC;

FIG. 7 is a flowchart of processes executed by a CPU of the PC shown in FIG. 1 when displaying the level display screen is instructed;

FIG. 8 is a flowchart of an effective path detection process shown in FIG. 7 when a target channel is an input channel;

FIG. 9 is a flowchart of a level integration process shown in FIG. 7 in a case where the target channel is an input channel;

FIG. 10 is a flowchart of calculation processes of a gain value of a volume used at Step S45 in FIG. 9 and so on;

FIG. 11 is a flowchart of the effective path detection process shown in FIG. 7 in a case where the target channel is an output channel;

FIG. 12 is a view showing an example of path data registered as a search result by the processes shown in FIG. 11; and

FIG. 13 is a flowchart of the level integration process shown in FIG. 7 in a case where the target channel is an output channel.

Claims

1. A controller remote-controlling a signal processing device which performs signal processing to an input signal by a plurality of processing elements to output the processed signal, comprising: a setting device that sets input of a dummy signal to a predetermined processing element among the processing elements;a reference point designating device that designates, as a reference point, a point which is set in a path of the signal processing and regarding which level display is to be performed;a path detector that detects a signal processing path from said predetermined processing element to said reference point;a level calculator that calculates a level of said dummy signal which reaches said reference point via the detected path, based on a value of a parameter used for said remote controlling; anda display controller causing a display to perform a level display regarding said reference point, based on the calculated level.

2. A controller according to claim 1, wherein said path detector is capable of detecting a plurality of the signal processing paths for said reference point,said level calculator has a device that calculates a level of the dummy signal in each of the plural signal processing paths when the plural signal processing paths are detected, andsaid display controller has a device that integrates the plural calculated levels and causing the display to perform the level display based on the integrated level.

3. A controller according to claim 1, wherein said display controller causes the display to perform the level display indicating that no signal is inputted, regarding the reference point for which no signal processing path is detected by said path detector.

4. A controller according to claim 1, wherein said display controller has a device that obtains from said signal processing device a level of a signal under processing in said signal processing device at said reference point and causes said display to perform the level display regarding the reference point, based on the obtained level, when the controller and said signal processing device are in an online state.

5. A controller according to claim 1, wherein said path detector and said level calculator operate when said signal processing device is in an offline state.

6. A machine-readable medium containing program instructions executable by a computer and causing said computer to function as said controller according to claim 1.