https://github.com/jonashaag/audio-resampling-in-python

Comparison of Python audio resampling implementations
https://github.com/jonashaag/audio-resampling-in-python

Last synced: 9 days ago
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Comparison of Python audio resampling implementations

• Host: GitHub
• URL: https://github.com/jonashaag/audio-resampling-in-python
• Owner: jonashaag
• Created: 2020-10-27T09:49:29.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2021-06-30T20:08:29.000Z (over 3 years ago)
• Last Synced: 2024-10-20T17:19:04.296Z (17 days ago)
• Language: Jupyter Notebook
• Size: 21.1 MB
• Stars: 44
• Watchers: 3
• Forks: 8
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
Comparison of audio resampling libraries. View the notebook: https://nbviewer.jupyter.org/github/jonashaag/audio-resampling-in-python/blob/master/Audio%20Resampling%20in%20Python.ipynb

### Best by quality

1. Good:

   - `scikit.samplerate`/`scikits-samplerate`/`samplerate`/`libsamplerate`

   - `librosa`/`resampy` (`"kaiser_best"`)

   - `julius`

3. Acceptable:

   - `nnresample`

   - `lilfilter`

   - `torchaudio` (`transforms.Resample` + `resample_waveform`)

   - `librosa`/`resampy` (`"kaiser_fast"`)

5. Bad:

   - `scipy.signal.resample`

### Best by speed

Downsampling from 48 kHz to 44.1 kHz.

| Library | Time on CPU | Time on GPU |

| - | - | - |

| `soxr` | 1.16 ms | no support |

| `scipy.signal.resample` | 2.42 ms | no support |

| `lilfilter` | 4.23 ms | ? |

| `torchaudio` (`transforms.Resample`) | 9.98 ms | ? |

| `torchaudio` (`resample_waveform`) | 10 ms | ? |

| `resampy` (`"kaiser_fast"`) | 10.5 ms | no support |

| `nnresample` | 16 ms | no support |

| `julius` | 16.2 ms | ? |

| `resampy` (`"kaiser_best"`) | 44.8 ms | no support |

| `scikits.samplerate` | 75.5 ms | no support |

| `samplerate` | 76.8 ms | no support |