cpal VS rubato

Compare cpal vs rubato and see what are their differences.


Cross-platform audio I/O library in pure Rust (by RustAudio)


An asyncronous resampling library written in Rust (by HEnquist)
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cpal rubato
10 2
1,846 89
3.8% -
5.4 4.2
3 days ago 26 days ago
Rust Rust
Apache License 2.0 MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of cpal. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-03-04.


Posts with mentions or reviews of rubato. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-01-24.
  • Symphonia v0.5.2: Audio decoding in safe Rust, now often faster than FFmpeg!
    6 projects | | 24 Jan 2023
    Regarding improving the API for 0.6, something that bugs me about the current Rust audio ecosystem is that everyone is reinventing the wheel with their own audio buffer types each with their own API that downstream users have to learn. This makes it more of a hassle to pass audio data from one library to another than it should be. I've been contributing to the audio crate which provides buffer structs and traits for working with audio buffers with a common API regardless of their layout in memory. I have a work-in-progress branch for Rubato refactoring it to use the audio crate, though there's a bit more work to do in the audio crate to complete that. Would you be interested in using the audio crate in Symphonia?
  • Modify pitch and volume while a sound file is playing
    4 projects | | 6 Mar 2022
    If you want to change tempo and pitch together, that's resampling. You can use Rubato's asynchronous resamplers for that.

What are some alternatives?

When comparing cpal and rubato you can also consider the following projects:

rodio - Rust audio playback library

swyh-rs - Stream What You Hear written in rust, inspired by SWYH.


rust-vst2 - VST 2.4 API implementation in rust. Create plugins or hosts.

rust-cookbook -

dotfiles - Configs for apps I care about

meter - Real-time CLI level meter built in Rust.

LibRapidRust - An optimised derivative of the LibRapid C++ library. Made with love for mathematics and computer science.

loopers - Loopers is graphical live looper, written in Rust, designed for ease of use and rock-solid stability