Skip to content

Commit

Permalink
Reformat README.md
Browse files Browse the repository at this point in the history
  • Loading branch information
unmade committed Nov 19, 2024
1 parent e2779f5 commit ba97902
Showing 1 changed file with 115 additions and 76 deletions.
191 changes: 115 additions & 76 deletions README.rst
Original file line number Diff line number Diff line change
@@ -1,141 +1,180 @@
==========
----

audiomatch

==========
----

.. image:: https://github.com/unmade/audiomatch/workflows/lint%20and%20test/badge.svg?branch=master
:alt: Build Status
:target: https://github.com/unmade/audiomatch/blob/master/.github/workflows/lint-and-test.yml
:alt: Build Status
:target: https://github.com/unmade/audiomatch/blob/master/.github/workflows/lint-and-test.yml

.. image:: https://codecov.io/gh/unmade/audiomatch/branch/master/graph/badge.svg
:alt: Coverage Status
:target: https://codecov.io/gh/unmade/audiomatch
:alt: Coverage Status
:target: https://codecov.io/gh/unmade/audiomatch

.. image:: https://img.shields.io/pypi/v/audiomatch.svg
:alt: PyPI Package latest release
:target: https://pypi.org/project/audiomatch
:alt: PyPI Package latest release
:target: https://pypi.org/project/audiomatch

.. image:: https://img.shields.io/badge/License-MIT-purple.svg
:alt: MIT License
:target: https://github.com/unmade/audiomatch/blob/master/LICENSE
:alt: MIT License
:target: https://github.com/unmade/audiomatch/blob/master/LICENSE

A small command-line tool to find similar audio files

Installation
============
##############
Installation
##############

First, install the Chromaprint_ fingerprinting library by Lukáš Lalinský. (The library itself depends on an FFT library, but it's smart enough to use an algorithm from software you probably already have installed; see the Chromaprint page for details.)
First, install the Chromaprint_ fingerprinting library by Lukáš
Lalinský. (The library itself depends on an FFT library, but it's smart
enough to use an algorithm from software you probably already have
installed; see the Chromaprint page for details.)

Then you can install this library:

.. code-block:: bash
.. code:: bash
pip install audiomatch
pip install audiomatch
To perform tasks quickly, *audiomatch* requires a C compiler and Python headers to be installed. You can skip the compilation by setting the ``AUDIOMATCH_NO_EXTENSIONS`` environment variable:
To perform tasks quickly, *audiomatch* requires a C compiler and Python
headers to be installed. You can skip the compilation by setting the
``AUDIOMATCH_NO_EXTENSIONS`` environment variable:

.. code-block:: bash
.. code:: bash
AUDIOMATCH_NO_EXTENSIONS=1 pip install audiomatch
AUDIOMATCH_NO_EXTENSIONS=1 pip install audiomatch
You can avoid installing all these libraries on your computer and run everything in Docker:
You can avoid installing all these libraries on your computer and run
everything in Docker:

.. code-block:: bash
.. code:: bash
docker run --rm -v "$(pwd)":/tmp fdooch/audiomatch "/tmp/*"
docker run --rm -v "$(pwd)":/tmp fdooch/audiomatch "/tmp/*"
Quickstart
==========
############
Quickstart
############

Suppose we have a directory with Nirvana songs:

.. code-block:: bash
.. code:: bash
$ ls demo
All Apologies (In Utero).m4a Dumb (Unplugged in NYC).m4a
All Apologies (Unplugged in NYC).m4a Pennyroyal Tea (In Utero).m4a
Dumb (In Utero).m4a Pennyroyal Tea (Solo Acoustic).mp3
Dumb (Radio Appearance, 1991).mp3 Pennyroyal Tea (Unplugged in NYC).m4a
$ ls demo
All Apologies (In Utero).m4a Dumb (Unplugged in NYC).m4a
All Apologies (Unplugged in NYC).m4a Pennyroyal Tea (In Utero).m4a
Dumb (In Utero).m4a Pennyroyal Tea (Solo Acoustic).mp3
Dumb (Radio Appearance, 1991).mp3 Pennyroyal Tea (Unplugged in NYC).m4a
Let's find out which files sound similar:

.. code-block:: bash
.. code:: bash
$ audiomatch --length 300 ./demo
These files sound similar:
$ audiomatch --length 300 ./demo
These files sound similar:
./demo/All Apologies (In Utero).m4a
./demo/All Apologies (Unplugged in NYC).m4a
./demo/All Apologies (In Utero).m4a
./demo/All Apologies (Unplugged in NYC).m4a
---
---
./demo/Dumb (In Utero).m4a
./demo/Dumb (Unplugged in NYC).m4a
./demo/Dumb (In Utero).m4a
./demo/Dumb (Unplugged in NYC).m4a
---
---
./demo/Pennyroyal Tea (In Utero).m4a
./demo/Pennyroyal Tea (Solo Acoustic).mp3
./demo/Pennyroyal Tea (Unplugged in NYC).m4a
./demo/Pennyroyal Tea (In Utero).m4a
./demo/Pennyroyal Tea (Solo Acoustic).mp3
./demo/Pennyroyal Tea (Unplugged in NYC).m4a
*Note #1: Input audio files should be at least 10 seconds long.*

*Note #2: In some rare cases, false positives are possible.*

What's happening here is that *audiomatch* takes all audio files from the directory and compares them with each other.
What's happening here is that *audiomatch* takes all audio files from
the directory and compares them with each other.

You can also compare a file with another file, a file and a directory, or a directory with another directory. If you need to, you can provide glob-style patterns, but don't forget to quote them, because otherwise the shell will expand it for you. For example, let's compare all ``.mp3`` files with ``.m4a`` files:
You can also compare a file with another file, a file and a directory,
or a directory with another directory. If you need to, you can provide
glob-style patterns, but don't forget to quote them, because otherwise
the shell will expand it for you. For example, let's compare all
``.mp3`` files with ``.m4a`` files:

.. code-block:: bash
.. code:: bash
$ audiomatch "./demo/*.mp3" "./demo/*.m4a"
These files sound similar:
$ audiomatch "./demo/*.mp3" "./demo/*.m4a"
These files sound similar:
../demo/Pennyroyal Tea (Solo Acoustic).mp3
../demo/Pennyroyal Tea (Unplugged in NYC).m4a
../demo/Pennyroyal Tea (Solo Acoustic).mp3
../demo/Pennyroyal Tea (Unplugged in NYC).m4a
This time, *audiomatch* took all files with the ``.mp3`` extension and compared them with all files with the ``.m4a`` extension.
This time, *audiomatch* took all files with the ``.mp3`` extension and
compared them with all files with the ``.m4a`` extension.

Note how there is no In Utero version in the output. The reason it is present in the previous output is because it is actually similar to the Unplugged version, and then the transitive law applies: if ``a = b`` and ``b = c``, then ``a = c``.
Note how there is no In Utero version in the output. The reason it is
present in the previous output is because it is actually similar to the
Unplugged version, and then the transitive law applies: if ``a = b`` and
``b = c``, then ``a = c``.

--length
--------
**********
--length
**********

The ``--length`` option specifies how many seconds to take for analysis from the song. The default value is 120, and it is good enough to find exactly the same song, but maybe in different quality. However, for more complicated cases like the same song played in a different tempo, the more input we have, the more accurate results are.
The ``--length`` option specifies how many seconds to take for analysis
from the song. The default value is 120, and it is good enough to find
exactly the same song, but maybe in different quality. However, for more
complicated cases like the same song played in a different tempo, the
more input we have, the more accurate results are.

--extension
-----------
*************
--extension
*************

By default, ``audiomatch`` looks for files with ``.m4a``, ``.mp3``, ``.caf`` extensions. In theory, audio formats supported by ffmpeg_ are also supported by *audiomatch*. You can tell *audiomatch* to look for a specific format by using the ``--extension`` flag:
By default, ``audiomatch`` looks for files with ``.m4a``, ``.mp3``,
``.caf`` extensions. In theory, audio formats supported by ffmpeg_ are
also supported by *audiomatch*. You can tell *audiomatch* to look for a
specific format by using the ``--extension`` flag:

.. code-block:: bash
.. code:: bash
$ audiomatch -e .ogg -e .wav ./demo
Not enough input files.
$ audiomatch -e .ogg -e .wav ./demo
Not enough input files.
Indeed, we tried to compare files with ``.ogg`` and ``.wav`` extensions, but there are no such files in the demo directory.
Indeed, we tried to compare files with ``.ogg`` and ``.wav`` extensions,
but there are no such files in the demo directory.

Motivation
==========
############
Motivation
############

I play guitar and do recordings from time to time, mainly with Voice Memos on iPhone. Over the years, I have hundreds of recordings like that, and I thought it would be cool to find all the similar ones and see how I have progressed over the years.
I play guitar and do recordings from time to time, mainly with Voice
Memos on iPhone. Over the years, I have hundreds of recordings like
that, and I thought it would be cool to find all the similar ones and
see how I have progressed over the years.

That's why I wrote this library.

References
==========
############
References
############

- Chromaprint_ and pyacoustid_ libraries
- `Example: How to compare fingerprints`_
- `Example: How to compare shifted fingerprints`_ (note: the code is a little bit weird)
- `Explanation: How to compare fingerprints`_
- `Popcount in Python with benchmarks`_
- Chromaprint_ and pyacoustid_ libraries
- `Example: How to compare fingerprints`_
- `Example: How to compare shifted fingerprints`_ (note: the code is a
little bit weird)
- `Explanation: How to compare fingerprints`_
- `Popcount in Python with benchmarks`_

.. _chromaprint: https://github.com/acoustid/chromaprint

.. _example: how to compare fingerprints: https://gist.github.com/lalinsky/1132166

.. _example: how to compare shifted fingerprints: https://medium.com/@shivama205/audio-signals-comparison-23e431ed2207

.. _explanation: how to compare fingerprints: https://groups.google.com/forum/#!msg/acoustid/Uq_ASjaq3bw/kLreyQgxKmgJ

.. _Chromaprint: https://github.com/acoustid/chromaprint
.. _`Example: How to compare fingerprints`: https://gist.github.com/lalinsky/1132166
.. _`Example: How to compare shifted fingerprints`: https://medium.com/@shivama205/audio-signals-comparison-23e431ed2207
.. _`Explanation: How to compare fingerprints`: https://groups.google.com/forum/#!msg/acoustid/Uq_ASjaq3bw/kLreyQgxKmgJ
.. _ffmpeg: http://ffmpeg.org
.. _`Popcount in Python with benchmarks`: http://www.valuedlessons.com/2009/01/popcount-in-python-with-benchmarks.html
.. _`pyacoustid`: https://github.com/beetbox/pyacoustid

.. _popcount in python with benchmarks: http://www.valuedlessons.com/2009/01/popcount-in-python-with-benchmarks.html

.. _pyacoustid: https://github.com/beetbox/pyacoustid

0 comments on commit ba97902

Please sign in to comment.