4 releases
0.3.5 | Sep 19, 2023 |
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0.3.4 | Sep 19, 2023 |
0.3.3 | Sep 19, 2023 |
0.3.2 | Sep 19, 2023 |
#554 in Audio
21KB
395 lines
r8brain-rs
rust interface to the r8brain free resampler: https://github.com/avaneev/r8brain-free-src
Sample rate converter designed by Aleksey Vaneev of Voxengo
Example usage
use r8brain_rs::{PrecisionProfile, Resampler};
fn test() {
let mut resampler = Resampler::new(48000.0, 96000.0, 4096, 2.0, PrecisionProfile::Bits24);
let input = [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0];
let mut output = [0.0; 128];
let output_len = resampler.process(&input, &mut output);
let resampled = &output[..output_len];
// do not be alarmed if you have to call .process() many times
// before a non-empty slice is yielded. This is normal.
}
Performance
On Macbook Pro M1, single threaded:
test tests::benchmarks::resample_192k_to_44dot1k_24bit ... bench: 2,084 ns/iter (+/- 14) = 80 MB/s
test tests::benchmarks::resample_44dot1k_to_192k_24bit ... bench: 10,025 ns/iter (+/- 386) = 16 MB/s
test tests::benchmarks::resample_48k_to_192k_24bit ... bench: 2,727 ns/iter (+/- 24) = 61 MB/s
test tests::benchmarks::resample_48k_to_96k_16bit ... bench: 1,460 ns/iter (+/- 35) = 115 MB/s
test tests::benchmarks::resample_48k_to_96k_24bit ... bench: 1,705 ns/iter (+/- 40) = 98 MB/s
test tests::benchmarks::resample_96k_to_48k_16bit ... bench: 674 ns/iter (+/- 6) = 249 MB/s
No runtime deps
~0–265KB