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

# GetShapeFiltVolFrequency

> GetShapeFiltVolFrequency

# GetShapeFiltVolFrequency

取得 FLTVOL 內容的轉折頻率。

## 語法

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

### 參數

*context*   \_In\_\
類型: [SHAPE\_FILTVOL\_CONTEXT](/zh-TW/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context)\*

指向 [SHAPE\_FILTVOL\_CONTEXT](/zh-TW/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context) 物件的指標。

### 傳回值

類型: float

轉折頻率。

## 備註

濾波器/音量 (FLTVOL) 區塊是以 Chamberlin 濾波器的形式實作。若要變更轉折頻率,請使用 [SetShapeFiltVolFrequency](/zh-TW/reference/audio/shapefiltvolcontext/functions/setshapefiltvolfrequency)。

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](/zh-TW/build/console-features/audio/overviews/shape-overview)的[濾波器/音量區塊 (FLTVOL)](/zh-TW/build/console-features/audio/overviews/shape-overview#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

[GetShapeFiltVolFrequencyTarget](/zh-TW/reference/audio/shapefiltvolcontext/functions/getshapefiltvolfrequencytarget)\
[ShapeFiltVolContext](/zh-TW/reference/audio/shapefiltvolcontext/shapefiltvolcontext_members)


## Related topics

- [GetShapeFiltVolFrequency](/reference/audio/shapefiltvolcontext/functions/getshapefiltvolfrequency.md)
- [GetShapeFiltVolFrequencyTarget](/reference/audio/shapefiltvolcontext/functions/getshapefiltvolfrequencytarget.md)