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Functions to convert between NumPy arrays and Sound objects. This module will only be functional when pygame can use the external NumPy package. If NumPy can't be imported, surfarray becomes a MissingModule object.

Sound data is made of thousands of samples per second, and each sample is the amplitude of the wave at a particular moment in time. For example, in 22-kHz format, element number 5 of the array is the amplitude of the wave after 5/22000 seconds.

The arrays are indexed by the X axis first, followed by the Y axis. Each sample is an 8-bit or 16-bit integer, depending on the data format. A stereo sound file has two values per sample, while a mono sound file only has one.

pygame.sndarray.array()

copy Sound samples into an array

array(Sound) -> array

Creates a new array for the sound data and copies the samples. The array will always be in the format returned from pygame.mixer.get_init().

pygame.sndarray.samples()

reference Sound samples into an array

samples(Sound) -> array

Creates a new array that directly references the samples in a Sound object. Modifying the array will change the Sound. The array will always be in the format returned from pygame.mixer.get_init().

pygame.sndarray.make_sound()

convert an array into a Sound object

make_sound(array) -> Sound

Create a new playable Sound object from an array. The mixer module must be initialized and the array format must be similar to the mixer audio format.

pygame.sndarray.use_arraytype()

Sets the array system to be used for sound arrays

use_arraytype (arraytype) -> None

DEPRECATED: Uses the requested array type for the module functions. The only supported arraytype is 'numpy'. Other values will raise ValueError. Using this function will raise a DeprecationWarning. .. ## pygame.sndarray.use_arraytype ##

pygame.sndarray.get_arraytype()

Gets the currently active array type.

get_arraytype () -> str

DEPRECATED: Returns the currently active array type. This will be a value of the get_arraytypes() tuple and indicates which type of array module is used for the array creation. Using this function will raise a DeprecationWarning.

New in pygame 1.8.

pygame.sndarray.get_arraytypes()

Gets the array system types currently supported.

get_arraytypes () -> tuple

DEPRECATED: Checks, which array systems are available and returns them as a tuple of strings. The values of the tuple can be used directly in the pygame.sndarray.use_arraytype() () method. If no supported array system could be found, None will be returned. Using this function will raise a DeprecationWarning.

New in pygame 1.8.