broadcast-loudness 0.2.0

EBU R 128 / ITU-R BS.1770-5 loudness measurement: K-weighting, integrated/short-term/momentary loudness (LUFS), loudness range (LRA), and true-peak (dBTP). no_std + alloc.
Documentation 
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#![cfg_attr(not(feature = "std"), no_std)]
#![cfg_attr(docsrs, feature(doc_cfg))]
#![warn(missing_docs)]
#![doc = "\n## Runnable examples\n"]
#![doc = "Run with `cargo run -p broadcast-loudness --example <name>`.\n"]
#![doc = "\n### `measure_loudness`\n\n```rust,ignore"]
#![doc = include_str!("../examples/measure_loudness.rs")]
#![doc = "```\n\n### `measure_true_peak`\n\n```rust,ignore"]
#![doc = include_str!("../examples/measure_true_peak.rs")]
#![doc = "```"]

extern crate alloc;

mod channel_layout;
mod error;
mod filter;
mod loudness_meter;
mod true_peak;

pub use channel_layout::ChannelLayout;
pub use error::{Error, Result};
pub use loudness_meter::LoudnessMeter;
pub use true_peak::TruePeakMeter;

pub mod kfilter {
    //! K-weighting IIR filter coefficients + state (ITU-R BS.1770-5 §Annex 1).
    //!
    //! [`k_weighting_coeffs`] derives the two stage coefficients for any
    //! sample rate via a bilinear transform; at 48 kHz they match the
    //! BS.1770-5 Annex 1 tabulated coefficients. The [`crate::LoudnessMeter`]
    //! applies them internally; re-exported here for consumers who need the
    //! raw filter (e.g. visualising the frequency response).

    pub use crate::filter::{BiquadCoeffs, BiquadState, apply_biquad, k_weighting_coeffs};
}