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2ba6d25aa9
This reverts commit 57781dc0bc.
The rename, although in line with what we did in the engine, caused problems with RTD we need to fix (or push for a fix) first.
176 lines
7.0 KiB
ReStructuredText
176 lines
7.0 KiB
ReStructuredText
:github_url: hide
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.. _class_AudioEffectSpectrumAnalyzer:
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AudioEffectSpectrumAnalyzer
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===========================
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**继承：** :ref:`AudioEffect<class_AudioEffect>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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可用于实时音频可视化的音频效果。
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.. rst-class:: classref-introduction-group
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描述
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----
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这种音频效果不影响声音输出，但可以用于实时音频可视化。
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该资源配置了一个 :ref:`AudioEffectSpectrumAnalyzerInstance<class_AudioEffectSpectrumAnalyzerInstance>`\ ，会在运行时执行实际的分析工作。可以使用 :ref:`AudioServer.get_bus_effect_instance()<class_AudioServer_method_get_bus_effect_instance>` 获取实例。
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另见用于程序式声音生成的 :ref:`AudioStreamGenerator<class_AudioStreamGenerator>`\ 。
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.. rst-class:: classref-introduction-group
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教程
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----
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- `音频频谱可视化演示 <https://godotengine.org/asset-library/asset/2762>`__
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.. rst-class:: classref-reftable-group
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属性
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----
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.. table::
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:widths: auto
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+----------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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| :ref:`float<class_float>` | :ref:`buffer_length<class_AudioEffectSpectrumAnalyzer_property_buffer_length>` | ``2.0`` |
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+----------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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| :ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` | :ref:`fft_size<class_AudioEffectSpectrumAnalyzer_property_fft_size>` | ``2`` |
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+----------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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| :ref:`float<class_float>` | :ref:`tap_back_pos<class_AudioEffectSpectrumAnalyzer_property_tap_back_pos>` | ``0.01`` |
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+----------------------------------------------------------+--------------------------------------------------------------------------------+----------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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枚举
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----
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.. _enum_AudioEffectSpectrumAnalyzer_FFTSize:
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.. rst-class:: classref-enumeration
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enum **FFTSize**: :ref:`🔗<enum_AudioEffectSpectrumAnalyzer_FFTSize>`
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_256:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **FFT_SIZE_256** = ``0``
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使用 256 个样本的缓冲器进行快速傅里叶变换。最低延迟，但随着时间的推移最不稳定。
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_512:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **FFT_SIZE_512** = ``1``
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使用 512 个样本的缓冲器进行快速傅里叶变换。低延迟，但随着时间的推移不太稳定。
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_1024:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **FFT_SIZE_1024** = ``2``
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使用 1024 个样本的缓冲器进行快速傅里叶变换。这是延迟和随着时间的推移的稳定性之间的折衷。
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_2048:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **FFT_SIZE_2048** = ``3``
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使用 2048 个样本的缓冲器进行快速傅里叶变换。高延迟，但随着时间的推移稳定。
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_4096:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **FFT_SIZE_4096** = ``4``
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使用 4096 个样本的缓冲器进行快速傅里叶变换。延迟最高，但随着时间的推移最稳定。
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.. _class_AudioEffectSpectrumAnalyzer_constant_FFT_SIZE_MAX:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **FFT_SIZE_MAX** = ``5``
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代表 :ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` 枚举的大小。
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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属性说明
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--------
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.. _class_AudioEffectSpectrumAnalyzer_property_buffer_length:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **buffer_length** = ``2.0`` :ref:`🔗<class_AudioEffectSpectrumAnalyzer_property_buffer_length>`
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.. rst-class:: classref-property-setget
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- |void| **set_buffer_length**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_buffer_length**\ (\ )
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要保留的缓冲区长度（以秒为单位）。较高的值将数据保存的时间更长，但需要更多的内存。
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioEffectSpectrumAnalyzer_property_fft_size:
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.. rst-class:: classref-property
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:ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **fft_size** = ``2`` :ref:`🔗<class_AudioEffectSpectrumAnalyzer_property_fft_size>`
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.. rst-class:: classref-property-setget
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- |void| **set_fft_size**\ (\ value\: :ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>`\ )
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- :ref:`FFTSize<enum_AudioEffectSpectrumAnalyzer_FFTSize>` **get_fft_size**\ (\ )
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`快速傅里叶变换 <https://en.wikipedia.org/wiki/Fast_Fourier_transform>`__\ 缓冲区的大小。较高的值可以使频谱分析随时间的推移而平滑，但有较大的延迟。这种较高延迟的影响在突然的振幅变化中特别明显。
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioEffectSpectrumAnalyzer_property_tap_back_pos:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **tap_back_pos** = ``0.01`` :ref:`🔗<class_AudioEffectSpectrumAnalyzer_property_tap_back_pos>`
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.. rst-class:: classref-property-setget
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- |void| **set_tap_back_pos**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_tap_back_pos**\ (\ )
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.. container:: contribute
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There is currently no description for this property. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要用户覆盖才能生效。)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (本方法无副作用，不会修改该实例的任何成员变量。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了能接受在此处描述的参数外，还能够继续接受任意数量的参数。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用于构造某个类型。)`
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.. |static| replace:: :abbr:`static (调用本方法无需实例，可直接使用类名进行调用。)`
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.. |operator| replace:: :abbr:`operator (本方法描述的是使用本类型作为左操作数的有效运算符。)`
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.. |bitfield| replace:: :abbr:`BitField (这个值是由下列位标志构成位掩码的整数。)`
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.. |void| replace:: :abbr:`void (无返回值。)`
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