mindspore/docs/api/api_python/dataset_audio/mindspore.dataset.audio.Equ...

15 lines
820 B
ReStructuredText
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

mindspore.dataset.audio.EqualizerBiquad
=======================================
.. py:class:: mindspore.dataset.audio.EqualizerBiquad(sample_rate, center_freq, gain, Q=0.707)
给音频波形施加双二次均衡器滤波器。
接口实现方式类似于 `SoX库 <http://sox.sourceforge.net/sox.html>`_
参数:
- **sample_rate** (int) - 采样频率单位Hz值不能为零。
- **center_freq** (float) - 中心频率单位Hz
- **gain** (float) - 期望提升或衰减的音频增益单位dB
- **Q** (float, 可选) - `品质因子 <https://zh.wikipedia.org/wiki/%E5%93%81%E8%B3%AA%E5%9B%A0%E5%AD%90>`_ ,能够反映带宽与采样频率和中心频率的关系,取值范围为(0, 1]默认值0.707。