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# PHASECardioidDirectivityModelSubbandParameters

A data set that projects sound of a certain frequency outward in the shape of a heart.

```
class PHASECardioidDirectivityModelSubbandParameters
```

## Overview

This class defines one subband in the [`PHASECardioidDirectivityModelParameters`](/documentation/PHASE/PHASECardioidDirectivityModelParameters) class’s `subbands`. Depending on the specific shape you define with [`pattern`](/documentation/PHASE/PHASECardioidDirectivityModelSubbandParameters/pattern) and [`sharpness`](/documentation/PHASE/PHASECardioidDirectivityModelSubbandParameters/sharpness), you can attenuate sound focused at [`frequency`](/documentation/PHASE/PHASECardioidDirectivityModelSubbandParameters/frequency) to the sides of the listener, while leaving the sound in front of or behind the listener unchanged.

## Topics

### Creating Cardioid Directivity Subband Parameters

[`-  init`](/documentation/PHASE/PHASECardioidDirectivityModelSubbandParameters/init())

Creates a data set that projects sound of a certain frequency outward in the shape of a heart.

### Sizing the Subband

[`frequency`](/documentation/PHASE/PHASECardioidDirectivityModelSubbandParameters/frequency)

A frequency in the audio spectrum where the pattern and sharpness resonate most.

### Shaping Directivity

[`pattern`](/documentation/PHASE/PHASECardioidDirectivityModelSubbandParameters/pattern)

A shape that determines the direction of sound.

[`sharpness`](/documentation/PHASE/PHASECardioidDirectivityModelSubbandParameters/sharpness)

The amount that the shape overlaps with bordering subbands.

## Relationships

### Conforms To

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`CVarArg`](/documentation/Swift/CVarArg)

[`Hashable`](/documentation/Swift/Hashable)

[`Equatable`](/documentation/Swift/Equatable)

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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