Plays back audio generated using [AudioStreamGenerator]. This class is meant to be used with [AudioStreamGenerator] to play back the generated audio in real-time. https://godotengine.org/asset-library/asset/526 https://godotengine.org/article/godot-32-will-get-new-audio-features Returns [code]true[/code] if a buffer of the size [param amount] can be pushed to the audio sample data buffer without overflowing it, [code]false[/code] otherwise. Clears the audio sample data buffer. Returns the number of frames that can be pushed to the audio sample data buffer without overflowing it. If the result is [code]0[/code], the buffer is full. Pushes several audio data frames to the buffer. This is usually more efficient than [method push_frame] in C# and compiled languages via GDExtension, but [method push_buffer] may be [i]less[/i] efficient in GDScript. Pushes a single audio data frame to the buffer. This is usually less efficient than [method push_buffer] in C# and compiled languages via GDExtension, but [method push_frame] may be [i]more[/i] efficient in GDScript.