PyPI · #1177 most downloaded on PyPI

soxr

1.1.010M downloads/modofuuz/python-soxr ↗New releases in your daily digest, changelog included.

High quality, one-dimensional sample-rate conversion library

Last release 5 months ago
03 May 2026
Release timing varies
gaps range from 1 weeks to 13 months
Some releases are documented
notes for 7 of 26 stable releases
1 version withdrawn
withdrawn after publishing
5 years old
38 releases · first in 2021

Release timeline

38 releases since 2021

202120222023202420252026

20212026

One column per quarter.

Releases

1.1.03 May 2026Breaking
There are no breaking changes in this release.
Added experimental variable-rate resampling and improved ResampleStream performance.

What's Changed

There are no breaking changes in this release.

New Features

Added (Experimental) Variable-rate Resampling

Now available via ResampleStream(vr=True) and set_io_ratio().

WARNING: This is an experimental feature; the API may change without notice in future releases.

Optimized ResampleStream performance

Improved processing speed ≈5–10% (benchmarked with 1920-sample chunks).

Reduction in memory consumption.

Internal

Optimized internal memory allocation logic within ResampleStream.

Tests

Added randomized test cases to enhance stability and edge-case coverage.
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Additional notes
v1.1.0 Latest

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There are no breaking changes in this version.

It's v1.0.0! 🚀🚀

This means it is considered stable, and its API is now stable (guaranteed future backward compatibility).

100 stars with v1.0.0 release 🥳🎉

What's Changed

There are no breaking changes in this version.

New features:

Add support for free-threaded Python (not battle-tested yet!)

Internal:

Fix function signature mismatches for WebAssembly (dofuuz/soxr#3)

Tests:

Add test for array slicing, int resample_chunk()
Add test for external libsoxr
Add test for Python 3.14

Full Changelog: v0.5.0.post1...v1.0.0

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Additional notes

v1.0.0

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0.5.0.post131 Aug 2024

v0.5.0.post1 Compare # Choose a tag to compare

v0.5.0.post1

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0.5.026 Aug 2024Deprecated

Drop deprecated implicit conversion in ResampleStream

Major internal overhaul for Python-SoXR.

Huge speed improvement 🚀 (~2x for some configurations!)

What's Changed

BREAKING CHANGE:

Drop deprecated implicit conversion in ResampleStream

New features:

Add more bindings (clear(), delay(), num_clips())
Speed improvement (compared from v0.4.0, static builds only)
- ~100% faster LQ, MQ, HQ resample on ARM
- ~100% faster VHQ resample on x86_64

Internal:

Change C binding to nanobind
- AVX SIMD64 support (faster VHQ for x86_64)
- Python Stable ABI
Speed optimization
- Fix NEON detection on ARM CPUs
- Use split channel I/O when appropriate (Avoid interleaving, de-interleaving)
- Use divide process in process_chunk()
- Add more GIL release scope

Tests:

Add test for ResampleStream, int I/O, split channel I/O, multi-threading
Add test for Python 3.13
Update bench scripts

Documentation:

Update benchmark section
Update build instructions
Separate license text file with dependencies

Full Changelog: v0.4.0...v0.5.0

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Additional notes

v0.5.0

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0.5.0rc119 Aug 2024pre-release

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v0.5.0rc1

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0.5.0b115 Aug 2024pre-release

Use divide process in process_chunk()

Various speed optimizations.

Use divide process in process_chunk()
Add more GIL release scope
Use split channel (Fortran memory order) I/O when appropriate (Avoid interleaving, de-interleaving)
Fix NEON detection on ARM CPUs
Speed improvement (compared from v0.4.0)
- ~100% faster LQ, MQ, HQ resample on ARM processors
- ~100% faster VHQ resample on x86_64 processors

Full Changelog: v0.5.0a1...v0.5.0b1

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v0.5.0b1

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0.5.0a127 Jul 2024pre-releaseDeprecated

Drop deprecated implicit conversion in ResampleStream

This is a preview release of Python-SoXR.

Change C binding to nanobind
- SIMD64 support (faster VHQ mode)
- Python Stable ABI
Add more bindings (clear(), delay(), ...)
Drop deprecated implicit conversion in ResampleStream

Full Changelog: v0.4.0b1...v0.5.0a1

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v0.5.0a1 Pre-release

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0.4.025 Jul 2024

Except for changes in version support, there are no differences from v0.3.7.

What's Changed

Support NumPy 2
- Drop Python < 3.9

Except for changes in version support, there are no differences from v0.3.7.

Full Changelog: v0.3.7...v0.4.0

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v0.4.0

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0.4.0b118 May 2024pre-release

What's Changed Support NumPy 2 #27 Drop support Python < 3.9 Full Changelog : v0.3.7...v0.4.0b1

What's Changed

Support NumPy 2 #27
Drop support Python < 3.9

Full Changelog: v0.3.7...v0.4.0b1

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v0.4.0b1 Pre-release

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0.3.75 Oct 2023

Fix version importing for setuptools_scm<7 (Fix #21 )

What's Changed

Add Python 3.12 builds
Fix __libsoxr_version__ (#22)
Fix version importing for setuptools_scm<7 (Fix #21)

Full Changelog: v0.3.6...v0.3.7

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v0.3.7

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0.3.615 Aug 2023

Change wheel dist - Add Python 3.7, Remove PyPy, win32 by @dofuuz in https://github.com/dofuuz/python-soxr/pull/19

What's Changed

Change wheel dist - Add Python 3.7, Remove PyPy, win32 by @dofuuz in https://github.com/dofuuz/python-soxr/pull/19
Add libsoxr_version to check version of linked libsoxr by @dofuuz in https://github.com/dofuuz/python-soxr/pull/20

Full Changelog: https://github.com/dofuuz/python-soxr/compare/v0.3.5...v0.3.6

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0.3.58 Apr 2023