Struct Spectrogram

Source

pub struct Spectrogram {
    pub mags_sqr: Vec<f32>,
    pub n_time: usize,
    pub n_freq: usize,
    pub t_step: usize,
    pub nsps: usize,
    pub df: f32,
    pub noise_per_bin: f32,
}

Expand description

FFT-bin spectrogram covering the audio buffer at half-symbol time steps. mags_sqr[t * n_freq + f] is |FFT[f]|² at time t.

Fields§

§mags_sqr: Vec<f32>§n_time: usize§n_freq: usize§t_step: usize§nsps: usize§df: f32§noise_per_bin: f32

Implementations§

Source §

impl Spectrogram

Source

pub fn build_for<P: ModulationParams>(audio: &[f32], sample_rate: u32) -> Self

Build the spectrogram from audio for Q65 sub-mode P. Time step = nsps / 2 (match NSTEP_PER_SYMBOL = 2); frequency resolution = sample_rate / nsps ≈ tone spacing.

Source

pub fn build(audio: &[f32], sample_rate: u32) -> Self

Q65-30A convenience wrapper for Self::build_for.

Source

pub fn get(&self, t: usize, f: usize) -> f32

Auto Trait Implementations§

§

impl UnwindSafe for Spectrogram

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §