aspen.sounds.complex_tone¶

Complex tone

Functions

complex_tone([duration, fundamental_freq, …])

Generate complex tone.

Classes

ComplexTone([complex_tone_duration, …])

Generate complex tone.

class aspen.sounds.complex_tone.ComplexTone(complex_tone_duration=[1000], complex_tone_fundamental_freq=[440], complex_tone_num_harmonics=[10], complex_tone_first_harmonic_freq=[440], complex_tone_harmonics_amp=['1'], complex_tone_tilt_type=['default'], complex_tone_num_signals=1, samp_freq=16000)[source]¶

Bases: aspen.interfaces.abs_common_interface.AbsCommonInterface, aspen.interfaces.abs_sound_interface.AbsSoundInterface

Generate complex tone.

Parameters

complex_tone_duration¶ (Sequence[float]) – The duration of complex tone in millisecond. Defaults to [1000].
complex_tone_fundamental_freq¶ (Sequence[float]) – The fundamental frequency of complex tone in Hz. This value determines the interval of each frequency peak. Defaults to [440].
complex_tone_num_harmonics¶ (Sequence[int]) – The number of harmonics. Defaults to [10].
complex_tone_first_harmonic_freq¶ (Sequence[float]) – The frequency of first harmonics. When this value is not same value as –complex-tone-fundamental-freq or a multiple of –complex-tone-fundamental-freq, the output signal becomes inharmonic. Defaults to [440].
complex_tone_harmonics_amp¶ (Sequence[str]) – Relative amplitude of each harmonics. The format is like 2_1_1_1 which is meant that the first harmonics has twice as much amplitude as the other three harmonics. Defaults to [“1”] which generates the same amplitude signal for all harmonics.
complex_tone_tilt_type¶ (Sequence[str]) – Type of spectral tilt. up, down means 6, -6 dB/Oct, respectively. default will do nothing.
complex_tone_num_signals¶ (int) – Number of signals. If this value greater than 2, the other arguments should contain 2 types. Defaults to 1.
samp_freq¶ (int) – Sampling frequency. Defaults to 16000.

__call__()¶

Generate a specified number of signals.

Return type

List[ndarray]

Returns

Generate signals.: Output well be sequence-like object such as list, tuple and so on.

_generate_each(idx)[source]¶

Generate each signal.

Parameters: idx¶ (int) – Index of signal generation.
Return type: ndarray
Returns: Generate signal.

static add_arguments(parser)[source]¶: add arguments

classmethod load_class_kwargs(args)¶

Return the kwargs dict for class __init__ from parsed arguments

Parameters: args¶ (Namespace) – (config)argparse arguments
Return type: dict
Returns: kwargs for class __init__

aspen.sounds.complex_tone.complex_tone(duration=[1000], fundamental_freq=[440], num_harmonics=[10], first_harmonic_freq=[440], harmonics_amp=['1'], tilt_type=['default'], num_signals=1, samp_freq=16000)[source]¶

Generate complex tone.

Parameters

duration¶ (Sequence[float]) – The duration of complex tone in millisecond. Defaults to [1000].
fundamental_freq¶ (Sequence[float]) – The fundamental frequency of complex tone in Hz. This value determines the interval of each frequency peak. Defaults to [440].
num_harmonics¶ (Sequence[int]) – The number of harmonics. Defaults to [10].
first_harmonic_freq¶ (Sequence[float]) – The frequency of first harmonics. When this value is not same value as –complex-tone-fundamental-freq or a multiple of –complex-tone-fundamental-freq, the output signal becomes inharmonic. Defaults to [440].
harmonics_amp¶ (Sequence[str]) – Relative amplitude of each harmonics. The format is like 2_1_1_1 which is meant that the first harmonics has twice as much amplitude as the other three harmonics. Defaults to [“1”] which generates the same amplitude signal for all harmonics.
tilt_type¶ (Sequence[str]) – Type of spectral tilt. up, down means 6, -6 dB/Oct, respectively. default will do nothing.
num_signals¶ (int) – Number of signals. If this value greater than 2, the other arguments should contain 2 types. Defaults to 1.
samp_freq¶ (int) – Sampling frequency. Defaults to 16000.

Return type

List[ndarray]

Returns

Output signals.