295 lines
11 KiB
ReStructuredText
295 lines
11 KiB
ReStructuredText
:github_url: hide
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.. DO NOT EDIT THIS FILE!!!
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.. Generated automatically from Godot engine sources.
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.. Generator: https://github.com/godotengine/godot/tree/3.6/doc/tools/make_rst.py.
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.. XML source: https://github.com/godotengine/godot/tree/3.6/doc/classes/AudioStreamSample.xml.
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.. _class_AudioStreamSample:
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AudioStreamSample
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=================
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**Inherits:** :ref:`AudioStream<class_AudioStream>` **<** :ref:`Resource<class_Resource>` **<** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`
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Stores audio data loaded from WAV files.
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.. rst-class:: classref-introduction-group
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Description
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-----------
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AudioStreamSample stores sound samples loaded from WAV files. To play the stored sound, use an :ref:`AudioStreamPlayer<class_AudioStreamPlayer>` (for non-positional audio) or :ref:`AudioStreamPlayer2D<class_AudioStreamPlayer2D>`/:ref:`AudioStreamPlayer3D<class_AudioStreamPlayer3D>` (for positional audio). The sound can be looped.
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This class can also be used to store dynamically-generated PCM audio data. See also :ref:`AudioStreamGenerator<class_AudioStreamGenerator>` for procedural audio generation.
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.. rst-class:: classref-reftable-group
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Properties
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----------
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.. table::
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:widths: auto
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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| :ref:`PoolByteArray<class_PoolByteArray>` | :ref:`data<class_AudioStreamSample_property_data>` | ``PoolByteArray( )`` |
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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| :ref:`Format<enum_AudioStreamSample_Format>` | :ref:`format<class_AudioStreamSample_property_format>` | ``0`` |
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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| :ref:`int<class_int>` | :ref:`loop_begin<class_AudioStreamSample_property_loop_begin>` | ``0`` |
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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| :ref:`int<class_int>` | :ref:`loop_end<class_AudioStreamSample_property_loop_end>` | ``0`` |
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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| :ref:`LoopMode<enum_AudioStreamSample_LoopMode>` | :ref:`loop_mode<class_AudioStreamSample_property_loop_mode>` | ``0`` |
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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| :ref:`int<class_int>` | :ref:`mix_rate<class_AudioStreamSample_property_mix_rate>` | ``44100`` |
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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| :ref:`bool<class_bool>` | :ref:`stereo<class_AudioStreamSample_property_stereo>` | ``false`` |
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+--------------------------------------------------+----------------------------------------------------------------+-----------------------+
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.. rst-class:: classref-reftable-group
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Methods
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-------
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.. table::
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:widths: auto
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+---------------------------------------+-------------------------------------------------------------------------------------------------------------+
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| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`save_to_wav<class_AudioStreamSample_method_save_to_wav>` **(** :ref:`String<class_String>` path **)** |
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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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Enumerations
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------------
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.. _enum_AudioStreamSample_Format:
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.. rst-class:: classref-enumeration
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enum **Format**:
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.. _class_AudioStreamSample_constant_FORMAT_8_BITS:
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.. rst-class:: classref-enumeration-constant
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:ref:`Format<enum_AudioStreamSample_Format>` **FORMAT_8_BITS** = ``0``
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8-bit audio codec.
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.. _class_AudioStreamSample_constant_FORMAT_16_BITS:
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.. rst-class:: classref-enumeration-constant
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:ref:`Format<enum_AudioStreamSample_Format>` **FORMAT_16_BITS** = ``1``
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16-bit audio codec.
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.. _class_AudioStreamSample_constant_FORMAT_IMA_ADPCM:
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.. rst-class:: classref-enumeration-constant
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:ref:`Format<enum_AudioStreamSample_Format>` **FORMAT_IMA_ADPCM** = ``2``
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Audio is compressed using IMA ADPCM.
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.. rst-class:: classref-item-separator
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----
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.. _enum_AudioStreamSample_LoopMode:
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.. rst-class:: classref-enumeration
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enum **LoopMode**:
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.. _class_AudioStreamSample_constant_LOOP_DISABLED:
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.. rst-class:: classref-enumeration-constant
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:ref:`LoopMode<enum_AudioStreamSample_LoopMode>` **LOOP_DISABLED** = ``0``
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Audio does not loop.
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.. _class_AudioStreamSample_constant_LOOP_FORWARD:
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.. rst-class:: classref-enumeration-constant
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:ref:`LoopMode<enum_AudioStreamSample_LoopMode>` **LOOP_FORWARD** = ``1``
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Audio loops the data between :ref:`loop_begin<class_AudioStreamSample_property_loop_begin>` and :ref:`loop_end<class_AudioStreamSample_property_loop_end>`, playing forward only.
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.. _class_AudioStreamSample_constant_LOOP_PING_PONG:
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.. rst-class:: classref-enumeration-constant
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:ref:`LoopMode<enum_AudioStreamSample_LoopMode>` **LOOP_PING_PONG** = ``2``
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Audio loops the data between :ref:`loop_begin<class_AudioStreamSample_property_loop_begin>` and :ref:`loop_end<class_AudioStreamSample_property_loop_end>`, playing back and forth.
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.. _class_AudioStreamSample_constant_LOOP_BACKWARD:
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.. rst-class:: classref-enumeration-constant
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:ref:`LoopMode<enum_AudioStreamSample_LoopMode>` **LOOP_BACKWARD** = ``3``
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Audio loops the data between :ref:`loop_begin<class_AudioStreamSample_property_loop_begin>` and :ref:`loop_end<class_AudioStreamSample_property_loop_end>`, playing backward only.
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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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Property Descriptions
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---------------------
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.. _class_AudioStreamSample_property_data:
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.. rst-class:: classref-property
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:ref:`PoolByteArray<class_PoolByteArray>` **data** = ``PoolByteArray( )``
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.. rst-class:: classref-property-setget
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- void **set_data** **(** :ref:`PoolByteArray<class_PoolByteArray>` value **)**
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- :ref:`PoolByteArray<class_PoolByteArray>` **get_data** **(** **)**
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Contains the audio data in bytes.
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\ **Note:** This property expects signed PCM8 data. To convert unsigned PCM8 to signed PCM8, subtract 128 from each byte.
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioStreamSample_property_format:
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.. rst-class:: classref-property
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:ref:`Format<enum_AudioStreamSample_Format>` **format** = ``0``
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.. rst-class:: classref-property-setget
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- void **set_format** **(** :ref:`Format<enum_AudioStreamSample_Format>` value **)**
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- :ref:`Format<enum_AudioStreamSample_Format>` **get_format** **(** **)**
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Audio format. See :ref:`Format<enum_AudioStreamSample_Format>` constants for values.
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioStreamSample_property_loop_begin:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **loop_begin** = ``0``
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.. rst-class:: classref-property-setget
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- void **set_loop_begin** **(** :ref:`int<class_int>` value **)**
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- :ref:`int<class_int>` **get_loop_begin** **(** **)**
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The loop start point (in number of samples, relative to the beginning of the sample). This information will be imported automatically from the WAV file if present.
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioStreamSample_property_loop_end:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **loop_end** = ``0``
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.. rst-class:: classref-property-setget
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- void **set_loop_end** **(** :ref:`int<class_int>` value **)**
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- :ref:`int<class_int>` **get_loop_end** **(** **)**
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The loop end point (in number of samples, relative to the beginning of the sample). This information will be imported automatically from the WAV file if present.
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioStreamSample_property_loop_mode:
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.. rst-class:: classref-property
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:ref:`LoopMode<enum_AudioStreamSample_LoopMode>` **loop_mode** = ``0``
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.. rst-class:: classref-property-setget
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- void **set_loop_mode** **(** :ref:`LoopMode<enum_AudioStreamSample_LoopMode>` value **)**
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- :ref:`LoopMode<enum_AudioStreamSample_LoopMode>` **get_loop_mode** **(** **)**
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The loop mode. This information will be imported automatically from the WAV file if present. See :ref:`LoopMode<enum_AudioStreamSample_LoopMode>` constants for values.
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioStreamSample_property_mix_rate:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **mix_rate** = ``44100``
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.. rst-class:: classref-property-setget
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- void **set_mix_rate** **(** :ref:`int<class_int>` value **)**
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- :ref:`int<class_int>` **get_mix_rate** **(** **)**
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The sample rate for mixing this audio. Higher values require more storage space, but result in better quality.
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In games, common sample rates in use are ``11025``, ``16000``, ``22050``, ``32000``, ``44100``, and ``48000``.
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According to the `Nyquist-Shannon sampling theorem <https://en.wikipedia.org/wiki/Nyquist%E2%80%93Shannon_sampling_theorem>`__, there is no quality difference to human hearing when going past 40,000 Hz (since most humans can only hear up to ~20,000 Hz, often less). If you are using lower-pitched sounds such as voices, lower sample rates such as ``32000`` or ``22050`` may be usable with no loss in quality.
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.. rst-class:: classref-item-separator
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----
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.. _class_AudioStreamSample_property_stereo:
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.. rst-class:: classref-property
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:ref:`bool<class_bool>` **stereo** = ``false``
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.. rst-class:: classref-property-setget
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- void **set_stereo** **(** :ref:`bool<class_bool>` value **)**
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- :ref:`bool<class_bool>` **is_stereo** **(** **)**
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If ``true``, audio is stereo.
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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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Method Descriptions
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-------------------
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.. _class_AudioStreamSample_method_save_to_wav:
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.. rst-class:: classref-method
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:ref:`Error<enum_@GlobalScope_Error>` **save_to_wav** **(** :ref:`String<class_String>` path **)**
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Saves the AudioStreamSample as a WAV file to ``path``. Samples with IMA ADPCM format can't be saved.
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\ **Note:** A ``.wav`` extension is automatically appended to ``path`` if it is missing.
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.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
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.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
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.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
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.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
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