> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# SHAPE_FILTER_HEADROOM

> SHAPE_FILTER_HEADROOM

# SHAPE\_FILTER\_HEADROOM

状态变量滤波器的余量(headroom)值。

## 语法

```cpp theme={null}
enum SHAPE_FILTER_HEADROOM    
{  
    SHAPE_FILTER_HEADROOM_0_DB,  
    SHAPE_FILTER_HEADROOM_6_DB,  
    SHAPE_FILTER_HEADROOM_12_DB,  
    SHAPE_FILTER_HEADROOM_18_DB  
}  
```

## 常量

| 常量                              | 说明    |
| ------------------------------- | ----- |
| SHAPE\_FILTER\_HEADROOM\_0\_DB  | 0 dB  |
| SHAPE\_FILTER\_HEADROOM\_6\_DB  | 6 dB  |
| SHAPE\_FILTER\_HEADROOM\_12\_DB | 12 dB |
| SHAPE\_FILTER\_HEADROOM\_18\_DB | 18 dB |

## 注解

此枚举用于 [SHAPE\_FILTVOL\_CONTEXT](/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context) 结构。它也被 [GetShapeFiltVolInputHeadroom](/reference/audio/shapefiltvolcontext/functions/getshapefiltvolinputheadroom) 和 [SetShapeFiltVolInputHeadroom](/reference/audio/shapefiltvolcontext/functions/setshapefiltvolinputheadroom) 函数使用。

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

[ShapeFiltVolContext](/reference/audio/shapefiltvolcontext/shapefiltvolcontext_members)


## Related topics

- [GetShapeFiltVolInputHeadroom](/zh-CN/reference/audio/shapefiltvolcontext/functions/getshapefiltvolinputheadroom.md)
- [SetShapeFiltVolInputHeadroom](/zh-CN/reference/audio/shapefiltvolcontext/functions/setshapefiltvolinputheadroom.md)
- [ShapeFiltVolContext](/zh-CN/reference/audio/shapefiltvolcontext/shapefiltvolcontext_members.md)
- [SHAPE_FILTVOL_CONTEXT](/zh-CN/reference/audio/shapefiltvolcontext/structs/shape_filtvol_context.md)
- [SHAPE_FILTER_MODE](/zh-CN/reference/audio/shapefiltvolcontext/enums/shape_filter_mode.md)