Evaluation of a number of loudness meter implementations.
You will need homebrew.
brew tap MTG/essentia
brew install essentia --HEAD
For other platforms, please refer to the essentia docs.
The original repo is located here: https://github.com/BrechtDeMan/loudness.py.git. However, there are a few issues that make it difficult to run via our testbench. Therefore, we will install via our branch, which has a few changes, but doesn't change the algorithm implementation.
git clone https://github.com/csteinmetz1/loudness.py.git
mv loudness.py loudness_py
Note you need to rename the resulting directory so it can be imported.
git clone git://github.com/jiixyj/loudness-scanner.git
cd loudness-scanner
git submodule init
git submodule update
mkdir build
cd build
cmake ..
make
In order to use essentia make sure you create an environment in the following manner. Make sure to go back to the top level directory first.
cd ../.. # go back up
python3 -m venv env/ --system-site-packages
source env/bin/activate
pip install -r requirements.txt
Now run the evaluation, which will measure the loudness of all files in the data/ directory and store the results in a text file.
This should take around 60 seconds.
python eval.py > results.txt
Optionally, you can run the fine-detail frequency test,
python eval.py -f
of the speed test to produce timings on your platform.
python eval.py -s
If you use pyloudnorm or this evaluation in your work please consider citing us.
@inproceedings{steinmetz2021pyloudnorm, title={pyloudnorm: {A} simple yet flexible loudness meter in Python}, author={Steinmetz, Christian J. and Reiss, Joshua D.}, booktitle={150th AES Convention} year={2021}}