## 6.7.11 MapSelectorBySource

### 6.7.11.1 Outline of the node

A filtering node which filters the multiple sound source separation results given as the input to output results that satisfy the conditions specified by parameters based on the information (ID, power , direction) in the Source . Regarding ID or power of a sound source, output the sound source whose ID or power is the minimum, the maximum, or within a certain range specified. Regarding the direction of the sound source, output the sound source whose direction is in the nearest to the specified angle, or angle within a certain range specified.

### 6.7.11.2 Necessary file

No files are required.

### 6.7.11.3 Usage

When to use

This node is used to obtain the sound source separation results when the information on ID, power, or direction of the sound source is available. It is useful to output some portion of data in the Map type. For example, when replaying the output result of sound source separation nodes such as GHDSS in PlayAudio . In this case, connect Synthesize and MapSelectorBySource to GHDSS node so that sound sources in different directions with Lch and Rch can be played separately.

Typical connection

Figure 6.113 shows a connection example. As shown in the figure, this node is connected later than the sound source separation module such as GHDSS .

### 6.7.11.4 Input-output and property of the node

Input

INPUT

: Map<int, ObjectRef>  type. The key of the Map , int , corresponds to the sound source ID since this node is connected to after a sound source separation node in general. The ObjectRef is either Vector<float> (Power Spectral) or Vector<complex<float> > (Complex Spectral) which are indicating sound source separation.

SOURCES

: Vector<ObjectRef>  type. The directions of sound sources to which ID are assigned. The ObjectRef refers to data in the Source type indicating the sound source information with an ID.

Output

OUTPUT

: Map<int, ObjectRef>  type. The data that satisfy conditions specified by parameters.

Parameter

Table 6.104: Parameter list of MapSelectorBySource
 Parameter list Type Default value Unit Description SELECTION_TYPE ID The filter condition for outputting data. Select ALL, ID, POWER, DIRECTION($*$), DIRECTION_AZIMUTH, or DIRECTION_ELEVATION. ID_SELECTION_TYPE LATEST The type of the sound source ID. Select LATEST, OLDEST or BETWEEN. ID_RANGE_MIN 0 The lower limit of the range for the sound source ID. ID_RANGE_MAX 0 The upper limit of the range for the sound source ID. POWER_SELECTION_TYPE HIGHEST The type of the sound source power. Select HIGHEST, LOWEST or BETWEEN. POWER_RANGE_MIN 0 The lower limit of the range for the sound source power. POWER_RANGE_MAX 40.0 The upper limit of the range for the sound source power. DIRECTION_SELECTION_TYPE($*$) BETWEEN The type of the direction of a sound source. Select NEAREST or BETWEEN. DIRECTION($*$) 0 [deg] The direction angle of a sound source. DIRECTION_RANGE_MIN($*$) 0 [deg] The lower limit of the range for the direction angle of a sound source. DIRECTION_RANGE_MAX($*$) 360.0 [deg] The upper limit of the range for the direction angle of a sound source. AZIMUTH_SELECTION_TYPE BETWEEN The type of the azimuth angle of a sound source. Select NEAREST or BETWEEN. AZIMUTH 0 [deg] The azimuth angle of a sound source. AZIMUTH_RANGE_MIN 0 [deg] The lower limit of the range for the azimuth angle of a sound source. AZIMUTH_RANGE_MAX 360.0 [deg] The upper limit of the range for the azimuth angle of a sound source. ELEVATION_SELECTION_TYPE BETWEEN The type of the elevation angle of a sound source. Select NEAREST or BETWEEN. ELEVATION 0 [deg] The elevation angle of a sound source. ELEVATION_RANGE_MIN 0 [deg] The lower limit of the range for the elevation angle of a sound source. ELEVATION_RANGE_MAX 360.0 [deg] The upper limit of the range for the elevation angle of a sound source. DEBUG_PRINT false Prints the debug message of this module if set to true.
SELECTION_TYPE

: string  type. The filter condition for outputting data. Select ALL, ID, POWER, DIRECTION($*$), DIRECTION_AZIMUTH, or DIRECTION_ELEVATION. Selecting ALL outputs all results unconditionally. When selecting ID, POWER, or DIRECTION($*$)/DIRECTION_AZIMUTH/DIRECTION_ELEVATION, outputs results that satisfy the conditions specified by the subsequent parameters for the sound source ID, the sound source power, or the sound source direction.

ID_SELECTION_TYPE

: string  type. The type of the sound source ID available when ID is selected in the SELECTION_TYPE parameter. Select LATEST, OLDEST, or BETWEEN. Selecting LATEST or OLDEST outputs the results of the sound source with the latest ID or the oldest ID. Selecting BETWEEN outputs the results of which ID are in between the values specified in ID_RANGE_MIN and ID_RANGE_MAX parameters. When multiple sound sources satisfy the condition, output the results of the multiple sound sources.

ID_RANGE_MIN

: int  type. The lower limit of the range for the sound source ID available when BETWEEN is selected in the ID_SELECTION_TYPE parameter.

ID_RANGE_MAX

: int  type. The upper limit of the range for the sound source ID available when BETWEEN is selected in the ID_SELECTION_TYPE parameter.

POWER_SELECTION_TYPE

: string  type. The type of the sound source power available when POWER is selected in the SELECTION_TYPE parameter. Select HIGHEST, LOWEST, or BETWEEN. Selecting HIGHEST or LOWEST outputs the results of the sound source with the highest power or the lowest power. Selecting BETWEEN outputs the results whose power is in between the values specified in POWER_RANGE_MIN and POWER_RANGE_MAX parameters. When multiple sound sources satisfy the condition, output the results of multiple sound sources.

POWER_RANGE_MIN

: float  type. The lower limit of the range for the sound source power available when BETWEEN is selected in the POWER_SELECTION_TYPE parameter.

POWER_RANGE_MAX

: float  type. The upper limit of the range for the sound source power available when BETWEEN is selected in the POWER_SELECTION_TYPE parameter.

DIRECTION_SELECTION_TYPE

: string  type. The type of the direction of a sound source available when DIRECTION is selected in the SELECTION_TYPE parameter. Select NEAREST or BETWEEN. Selecting NEAREST outputs the result whose direction is located in the nearest to the angle specified in the DIRECTION parameter. Selecting BETWEEN outputs the results whose direction is in between the specific values specified in DIRECTION_RANGE_MIN and DIRECTION_RANGE_MAX parameters. When multiple sound sources satisfy the condition, output the results of multiple sound sources. ($*$)

DIRECTION

: float  type. The direction angle of a sound source available when NEAREST is selected in the DIRECTION_SELECTION_TYPE parameter. ($*$)

DIRECTION_RANGE_MIN

: float  type. The lower limit of the range for the direction angle of a sound source available when BETWEEN is selected in the DIRECTION_SELECTION_TYPE parameter. ($*$)

DIRECTION_RANGE_MAX

: float  type. The upper limit of the range for the direction angle of a sound source available when BETWEEN is selected in the DIRECTION_SELECTION_TYPE parameter. ($*$)

AZIMUTH_SELECTION_TYPE

: string  type. The type of the azimuth of a sound source available when DIRECTION_AZIMUTH is selected in the SELECTION_TYPE parameter. Select NEAREST or BETWEEN. Selecting NEAREST outputs the result whose azimuth is located the nearest to the azimuth specified in the AZIMUTH parameter. Selecting BETWEEN outputs the results whose azimuth is in between the specific values specified in AZIMUTH_RANGE_MIN and AZIMUTH_RANGE_MAX parameters. When multiple sound sources satisfy the condition, output the results of multiple sound sources.

AZIMUTH

: float  type. The azimuth angle available when NEAREST is selected in the AZIMUTH_SELECTION_TYPE parameter.

AZIMUTH_RANGE_MIN

: float  type. The lower limit of the range for the azimuth angle of a sound source available when BETWEEN is selected in the AZIMUTH_SELECTION_TYPE parameter.

AZIMUTH_RANGE_MAX

: float  type. The upper limit of the range for the azimuth angle of a sound source available when BETWEEN is selected in the AZIMUTH_SELECTION_TYPE parameter.

ELEVATION_SELECTION_TYPE

: string  type. The type of the elevation of a sound source available when DIRECTION_ELEVATION is selected in the SELECTION_TYPE parameter. Select NEAREST or BETWEEN. Selecting NEAREST outputs the result whose elevation is located in the nearest to the elevation specified in the ELEVATION parameter. Selecting BETWEEN outputs the results whose elevation is in between the values specified in ELEVATION_RANGE_MIN and ELEVATION_RANGE_MAX parameters. When multiple sound sources satisfy the condition, output the results of multiple sound sources.

ELEVATION

: float  type. The elevation angle of a sound source available when NEAREST is selected in the ELEVATION_SELECTION_TYPE.

ELEVATION_RANGE_MIN

: float  type. The lower limit of the range for the elevation angle of a sound source available when BETWEEN is selected in the ELEVATION_SELECTION_TYPE.

ELEVATION_RANGE_MAX

: float  type. The upper limit of the range for the elevation angle of a sound source available when BETWEEN is selected in the ELEVATION_SELECTION_TYPE.

DEBUG_PRINT

: bool  type. Prints the debug message of this module if set to true..

### 6.7.11.5 ($*$)Parameters for compatibility

DIRECTION and DIRECTION_AZIMUTH, choices in the SELECTION_TYPE parameter, are compatible. The DIRECTION parameter and the AZIMUTH parameter are compatible. The DIRECTION_RANGE_MIN parameter and the AZIMUTH_RANGE_MIN parameter are compatible so are the DIRECTION_RANGE_MAX parameter and the AZIMUTH_RANGE_MAX parameter.