Package topo :: Package pattern :: Module audio :: Class AudioFile

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Class AudioFile

source code

Returns a spectrogram, i.e. the spectral density over time of a rolling window of the input audio signal.

Nested Classes

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Inherited from param.parameterized.Parameterized: __metaclass__

Instance Methods

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__init__(self, **params)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

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_create_spacing(self, mini, maxi)
Overload if custom frequency spacing is required.

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__call__(self, **params_to_override)
Call the subclass's 'function' method on a rotated and scaled coordinate system.

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Inherited from basic.Spectrogram (private): _create_indices

Inherited from basic.PowerSpectrum (private): _extract_sample_window, _get_amplitudes, _initialize_window_parameters

Inherited from base.patterngenerator.PatternGenerator: function

Inherited from base.patterngenerator.PatternGenerator (private): _apply_mask, _create_and_rotate_coordinate_arrays, _setup_xy

Inherited from param.parameterized.Parameterized: __getstate__, __repr__, __setstate__, __str__, debug, defaults, force_new_dynamic_value, get_param_values, get_value_generator, inspect_value, message, print_param_values, script_repr, set_default, set_dynamic_time_fn, set_param, state_pop, state_push, verbose, warning

Inherited from param.parameterized.Parameterized (private): _add_parameter, _instantiate_param, _set_name, _setup_params

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Class Methods

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Inherited from param.parameterized.Parameterized: params, print_param_defaults

Class Variables

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filename = param.Filename(default= 'sounds/complex/daisy.wav',...
File path (can be relative to Topographica's base path) to an audio file.

amplify_from_frequency = param.Number(default= 1500.0, doc= ...
The lower bound of the frequency range to be amplified.

amplify_till_frequency = param.Number(default= 7000.0, doc= ...
The upper bound of the frequency range to be amplified.

amplify_by = param.Number(default= 5.0, doc= ...
The percentage by which to amplify the signal between the specified frequency range.

name = <param.parameterized.String object at 0xba933ec>
String identifier for this object.

Inherited from basic.Spectrogram: sample_window, seconds_per_timestep

Inherited from basic.PowerSpectrum: max_frequency, min_frequency, sample_rate, window_increment, window_length, windowing_function

Inherited from base.patterngenerator.PatternGenerator: bounds, mask, mask_shape, offset, orientation, output_fns, position, scale, size, x, xdensity, y, ydensity

Inherited from param.parameterized.Parameterized: print_level

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, **params)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Overrides: object.__init__: (inherited documentation)

_create_spacing(self, mini, maxi)

source code

Overload if custom frequency spacing is required.

Overrides: basic.PowerSpectrum._create_spacing: (inherited documentation)

call(self, **params_to_override)
(Call operator)

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Call the subclass's 'function' method on a rotated and scaled coordinate system.

Creates and fills an array with the requested pattern. If called without any params, uses the values for the Parameters as currently set on the object. Otherwise, any params specified override those currently set on the object.

Overrides: base.patterngenerator.PatternGenerator.__call__: (inherited documentation)

Class Variable Details

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filename

File path (can be relative to Topographica's base path) to an audio file. The audio can be in any format accepted by pyaudiolab, e.g. WAV, AIFF, or FLAC.

Value:

param.Filename(default= 'sounds/complex/daisy.wav', doc= """
        File path (can be relative to Topographica's base path) to an
        audio file. The audio can be in any format accepted by pyaudiolab, 
        e.g. WAV, AIFF, or FLAC.""")

amplify_from_frequency

The lower bound of the frequency range to be amplified.

Value:

param.Number(default= 1500.0, doc= """
        The lower bound of the frequency range to be amplified.""")

amplify_till_frequency

The upper bound of the frequency range to be amplified.

Value:

param.Number(default= 7000.0, doc= """
        The upper bound of the frequency range to be amplified.""")

amplify_by

The percentage by which to amplify the signal between the specified frequency range.

Value:

param.Number(default= 5.0, doc= """
        The percentage by which to amplify the signal between the specified
        frequency range.""")

Class AudioFile

__init__(self, **params) (Constructor)

_create_spacing(self, mini, maxi)

__call__(self, **params_to_override) (Call operator)

filename

amplify_from_frequency

amplify_till_frequency

amplify_by

init(self, **params)
(Constructor)

call(self, **params_to_override)
(Call operator)