---
title: PHASECardioidDirectivityModelSubbandParameters
framework: phase
role: symbol
role_heading: Class
path: phase/phasecardioiddirectivitymodelsubbandparameters
---

# PHASECardioidDirectivityModelSubbandParameters

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

## Declaration

```swift
class PHASECardioidDirectivityModelSubbandParameters
```

## Overview

Overview This class defines one subband in the PHASECardioidDirectivityModelParameters class’s subbands. Depending on the specific shape you define with pattern and sharpness, you can attenuate sound focused at 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()](phase/phasecardioiddirectivitymodelsubbandparameters/init().md)

### Sizing the Subband

- [frequency](phase/phasecardioiddirectivitymodelsubbandparameters/frequency.md)

### Shaping Directivity

- [pattern](phase/phasecardioiddirectivitymodelsubbandparameters/pattern.md)
- [sharpness](phase/phasecardioiddirectivitymodelsubbandparameters/sharpness.md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Sound Directivity

- [PHASECardioidDirectivityModelParameters](phase/phasecardioiddirectivitymodelparameters.md)
- [PHASEConeDirectivityModelParameters](phase/phaseconedirectivitymodelparameters.md)
- [PHASEConeDirectivityModelSubbandParameters](phase/phaseconedirectivitymodelsubbandparameters.md)
- [PHASEDirectivityModelParameters](phase/phasedirectivitymodelparameters.md)