Skip to main content

pick feature for phm

Project description

phm-feature

介绍

使用torch torchaudio 构建PHM特征抽取功能层

功能层介绍

torchphm.layers 将phm固定使用的数据操作,固化为如下层:

  1. STFT 离散傅立叶变换
  2. Spectrogram 谱图
  3. MelFilterbank mel譜过滤
  4. AmplitudeToDb 幅度取分贝
  5. TimeStretch 变速不变调
  6. ComplexNorm 复数输出取模'范数'
  7. ApplyFilterbank 过滤器应用
应用场景

组合上述功能层,实现不同场景:

  1. STFT 分帧==>加窗==>短时离散傅立叶变换

  2. "变速不变调" Time scale modification 详细见 https://zhuanlan.zhihu.com/p/337193578 用于声谱图压缩、扩张处理,供后续分析

  3. 梅尔mel谱转换 对于语谱图进行mel谱转换

  4. HPSS 中值滤波,过滤出频率的谐波分量与冲击分量 为什么中值滤波,可以过滤出"数据轮廓"及发现"谐波分量和冲击分量",参见 https://blog.csdn.net/qq_38131594/article/details/80758567

软件架构

软件结构说明

.
├── dist
│   ├── torchphm-1.1.7.tar.gz
│   └── torchphm-1.1.8.tar.gz
├── draw
│   ├── draw_functional.py
│   ├── draw_layers.py
│   ├── draw_torchphm_layers.ipynb
│   ├── torchphm -> ../torchphm
│   └── Untitled.ipynb
├── examples_torchphm.ipynb
├── README.md
├── setup.cfg
├── setup.py
├── tests
│   ├── test_functional.py
│   └── test_layers.py
├── torchphm
│   ├── beta_hpss.py
│   ├── functional.py
│   ├── __init__.py
│   ├── layers.py
└── torchphm.egg-info
    ├── PKG-INFO

dist pypi上传包 draw 画图 examples_torchphm.ipynb 应用例程 tests 测试文件 torchphm 实现源码

安装教程

使用pip进行安装


#### 参与贡献

#### 特技

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

torchphm-1.1.9.tar.gz (11.9 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page