> ## 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

获取 FLTVOL 上下文的转折频率。

## 语法

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

### 参数

*context*   \_In\_\
类型:[SHAPE\_FILTVOL\_CONTEXT](/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context)\*

指向 [SHAPE\_FILTVOL\_CONTEXT](/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context) 对象的指针。

### 返回值

类型:float

转折频率。

## 注解

滤波器/音量(FLTVOL)模块实现为 Chamberlin 滤波器。若要更改转折频率,请使用 [SetShapeFiltVolFrequency](/reference/audio/shapefiltvolcontext/functions/setshapefiltvolfrequency)。

其滤波行为设计上与 XAudio2 中的完全一致。

有关详细信息,请参阅 [SHAPE 概述](/build/console-features/audio/overviews/shape-overview) 的 [滤波器/音量模块 (FLTVOL)](/build/console-features/audio/overviews/shape-overview#ID4EBH) 部分。

## 要求

**头文件:** shapefiltvolcontext.h

**支持的平台:** XBOX One 系列主机和 XBOX Series 主机

## 另请参阅

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


## Related topics

- [GetShapeFiltVolFrequencyTarget](/zh-CN/reference/audio/shapefiltvolcontext/functions/getshapefiltvolfrequencytarget.md)
- [SetShapeFiltVolFrequency](/zh-CN/reference/audio/shapefiltvolcontext/functions/setshapefiltvolfrequency.md)
- [ShapeFiltVolContext](/zh-CN/reference/audio/shapefiltvolcontext/shapefiltvolcontext_members.md)
- [SetShapeFiltVolFrequencyTarget](/zh-CN/reference/audio/shapefiltvolcontext/functions/setshapefiltvolfrequencytarget.md)
- [GetShapeFiltVolQ](/zh-CN/reference/audio/shapefiltvolcontext/functions/getshapefiltvolq.md)