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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.
172 lines
6.5 KiB
ReStructuredText
172 lines
6.5 KiB
ReStructuredText
:github_url: hide
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.. _class_AudioEffectPitchShift:
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AudioEffectPitchShift
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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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为音频总线添加音高变换的音频效果。
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升高或降低原始声音的音高。
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.. rst-class:: classref-introduction-group
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描述
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----
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允许独立于速度调制音高。所有频率都可以增加或减少,而对瞬态的影响最小。
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.. rst-class:: classref-introduction-group
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教程
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----
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- :doc:`音频总线 <../tutorials/audio/audio_buses>`
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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:`FFTSize<enum_AudioEffectPitchShift_FFTSize>` | :ref:`fft_size<class_AudioEffectPitchShift_property_fft_size>` | ``3`` |
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+----------------------------------------------------+------------------------------------------------------------------------+---------+
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| :ref:`int<class_int>` | :ref:`oversampling<class_AudioEffectPitchShift_property_oversampling>` | ``4`` |
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+----------------------------------------------------+------------------------------------------------------------------------+---------+
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| :ref:`float<class_float>` | :ref:`pitch_scale<class_AudioEffectPitchShift_property_pitch_scale>` | ``1.0`` |
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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_AudioEffectPitchShift_FFTSize:
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.. rst-class:: classref-enumeration
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enum **FFTSize**: :ref:`🔗<enum_AudioEffectPitchShift_FFTSize>`
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.. _class_AudioEffectPitchShift_constant_FFT_SIZE_256:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectPitchShift_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_AudioEffectPitchShift_constant_FFT_SIZE_512:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectPitchShift_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_AudioEffectPitchShift_constant_FFT_SIZE_1024:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectPitchShift_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_AudioEffectPitchShift_constant_FFT_SIZE_2048:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectPitchShift_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_AudioEffectPitchShift_constant_FFT_SIZE_4096:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectPitchShift_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_AudioEffectPitchShift_constant_FFT_SIZE_MAX:
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.. rst-class:: classref-enumeration-constant
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:ref:`FFTSize<enum_AudioEffectPitchShift_FFTSize>` **FFT_SIZE_MAX** = ``5``
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代表 :ref:`FFTSize<enum_AudioEffectPitchShift_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_AudioEffectPitchShift_property_fft_size:
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.. rst-class:: classref-property
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:ref:`FFTSize<enum_AudioEffectPitchShift_FFTSize>` **fft_size** = ``3`` :ref:`🔗<class_AudioEffectPitchShift_property_fft_size>`
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.. rst-class:: classref-property-setget
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- |void| **set_fft_size**\ (\ value\: :ref:`FFTSize<enum_AudioEffectPitchShift_FFTSize>`\ )
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- :ref:`FFTSize<enum_AudioEffectPitchShift_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。较高的数值可以使效果随时间平滑,但有较大的延迟。这种较高的延迟对有突然幅度变化的声音的影响特别明显。
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioEffectPitchShift_property_oversampling:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **oversampling** = ``4`` :ref:`🔗<class_AudioEffectPitchShift_property_oversampling>`
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.. rst-class:: classref-property-setget
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- |void| **set_oversampling**\ (\ value\: :ref:`int<class_int>`\ )
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- :ref:`int<class_int>` **get_oversampling**\ (\ )
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要使用的过采样系数。更高的值会带来更好的质量,但对 CPU 的要求更高,如果 CPU 跟不上,可能会导致音频破裂。
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioEffectPitchShift_property_pitch_scale:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **pitch_scale** = ``1.0`` :ref:`🔗<class_AudioEffectPitchShift_property_pitch_scale>`
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.. rst-class:: classref-property-setget
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- |void| **set_pitch_scale**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_pitch_scale**\ (\ )
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要使用的音高缩放。\ ``1.0`` 是默认的音高,声音会按原样播放。\ :ref:`pitch_scale<class_AudioEffectPitchShift_property_pitch_scale>` 的范围从 ``0.0``\ (无限低的音高,听不见)到 ``16``\ (比初始音高要高 16 倍)。
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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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