> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# GetShapeFiltVolFrequencyTarget

> GetShapeFiltVolFrequencyTarget

# GetShapeFiltVolFrequencyTarget

取得 FLTVOL 內容的頻率目標值。

## 語法

```cpp theme={null}
float GetShapeFiltVolFrequencyTarget(  
         const SHAPE_FILTVOL_CONTEXT* context  
)  
```

### 參數

*context*   \_In\_\
類型: [SHAPE\_FILTVOL\_CONTEXT](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context.md)\*

指向 [SHAPE\_FILTVOL\_CONTEXT](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context.md) 物件的指標。

### 傳回值

類型: float

頻率目標值。

## 備註

濾波器/音量 (FLTVOL) 區塊是以 Chamberlin 濾波器的形式實作。若要變更頻率目標值,請使用 [SetShapeFiltVolFrequencyTarget](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/functions/setshapefiltvolfrequencytarget.md)。

濾波行為的設計與 XAudio2 中的濾波行為完全相同。

如需詳細資訊,請參閱 [SHAPE 概觀](https://docs.xbox.com/zh-TW/build/console-features/audio/overviews/shape-overview.md)的[濾波器/音量區塊 (FLTVOL)](https://docs.xbox.com/zh-TW/build/console-features/audio/overviews/shape-overview.md#ID4EBH) 一節。

## 需求

**標頭:** shapefiltvolcontext.h

**支援的平台:** XBOX One 系列主機和 XBOX Series 主機

## 另請參閱

[GetShapeFiltVolFrequency](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/functions/getshapefiltvolfrequency.md)\
[ShapeFiltVolContext](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/shapefiltvolcontext_members.md)


## Related topics

- [GetShapeFiltVolFrequency](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/functions/getshapefiltvolfrequency.md)
- [SetShapeFiltVolFrequencyTarget](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/functions/setshapefiltvolfrequencytarget.md)
- [ShapeFiltVolContext](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/shapefiltvolcontext_members.md)
- [SetShapeFiltVolFrequency](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/functions/setshapefiltvolfrequency.md)
- [GetShapeFiltVolQTarget](https://docs.xbox.com/zh-TW/reference/audio/shapefiltvolcontext/functions/getshapefiltvolqtarget.md)