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 [code]amount[/code] 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 audio data frames left to play. If this returned number reaches [code]0[/code], the audio will stop playing until frames are added again. Therefore, make sure your script can always generate and push new audio frames fast enough to avoid audio cracking. Pushes several audio data frames to the buffer. This is usually more efficient than [method push_frame] in C# and compiled languages via GDNative, 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 GDNative, but [method push_frame] may be [i]more[/i] efficient in GDScript.