ScalerDB

Discussion

THIS MODULE IS DEPRECATED AND NOT RECOMMENDED FOR NEW DESIGNS. PLEASE USE THE ScalerV2 MODULE INSTEAD.

The Scaler dB module scales multichannel signals by a single gain value. By default, the module has a 1 input and 1 output pin.

The module can also be configured for an arbitrary number of input and output pins. In this case, the ith input pin is scaled and copied to the ith output pin. The same scale factor is used in all cases and the dimensions and sample rate of each signal can be arbitrary.

Note that the module is not smoothly varying. If you update the gain value, you may introduce an audible click. For clickless operation, use the ScalerDBSmoothed module instead.

Module Pack

Deprecated

ClassID

classID = 2036

Type Definition

typedef struct _ModuleScalerDB
{
ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
FLOAT32 gainDB;                               // Gain in dB.
FLOAT32 gain;                                 // Gain in linear units.
} ModuleScalerDBClass;

Variables

Properties

Name	Type	Usage	isHidden	Default Value	Range	Units
gainDB	float	parameter	0	0	-40:0.1:20	dB
gain	float	derived	1	1	Unrestricted	linear

Pins

Input Pins


Name	in1
Description	Input signal
Data type	float
Channel range	Unrestricted
Block size range	Unrestricted
Sample rate range	Unrestricted
Complex support	Real and Complex

Output Pins


Name	out1
Description	Output signal
Data Type	float

Matlab Usage

File Name: scaler_db_module.m 
 M=scaler_db_module(NAME, NUMPINS)  
 Creates a dB scaler for use with the Audio 
 Weaver environment. The scaler has a single multichannel input and scales 
 all channels by the same value.  

 Arguments: 
    NAME - name of the module. 
    NUMPINS - Optional: number of inputs. Default = 1 input, 1 output. 
       The ith input pin is then scaled and placed in the ith output 
       pin. In all cases, the same scale factor is applied to all values.