Struct AudioUnitParameterUnit 

#[repr(transparent)]
pub struct AudioUnitParameterUnit(pub u32);

Available on crate feature AudioUnitProperties only.

untyped value generally between 0.0 and 1.0

takes an integer value (good for menu selections)

0.0 means FALSE, non-zero means TRUE

usually from 0 -> 100, sometimes -50 -> +50

absolute or relative time

one sample frame equals (1.0/sampleRate) seconds

-180 to 180 degrees

rate multiplier, for playback speed, etc. (e.g. 2.0 == twice as fast)

absolute frequency/pitch in cycles/second

unit of relative pitch

useful for coarse detuning

absolute pitch as defined in the MIDI spec (exact freq may depend on tuning table)

a generic MIDI controller value from 0 -> 127

logarithmic relative gain

linear relative gain

-180 to 180 degrees, similar to phase but more general (good for 3D coord system)

0 -> 100, crossfade mix two sources according to sqrt(x) and sqrt(1.0 - x)

0.0 -> 1.0, pow(x, 3.0) -> linear gain to simulate a reasonable mixer channel fader response

standard left to right mixer pan

distance measured in meters

absolute frequency measurement : if f is freq in hertz then absoluteCents = 1200 * log2(f / 440) + 6900

octaves in relative pitch where a value of 1 is equal to 1200 cents

beats per minute, ie tempo

time relative to tempo, i.e., 1.0 at 120 BPM would equal 1/2 a second

parameter is expressed in milliseconds

for compression, expansion ratio, etc.

this is the parameter unit type for parameters that present a custom unit name

a generic MIDI 2.0 controller value with 32-bit range

See also Apple’s documentation

Tuple Fields

0: u32

Implementations

impl AudioUnitParameterUnit

pub const Generic: Self

pub const Indexed: Self

pub const Boolean: Self

pub const Percent: Self

pub const Seconds: Self

pub const SampleFrames: Self

pub const Phase: Self

pub const Rate: Self

pub const Hertz: Self

pub const Cents: Self

pub const RelativeSemiTones: Self

pub const MIDINoteNumber: Self

pub const MIDIController: Self

pub const Decibels: Self

pub const LinearGain: Self

pub const Degrees: Self

pub const EqualPowerCrossfade: Self

pub const MixerFaderCurve1: Self

pub const Pan: Self

pub const Meters: Self

pub const AbsoluteCents: Self

pub const Octaves: Self

pub const BPM: Self

pub const Beats: Self

pub const Milliseconds: Self

pub const Ratio: Self

pub const CustomUnit: Self

pub const MIDI2Controller: Self

Trait Implementations

impl Clone for AudioUnitParameterUnit

fn clone(&self) -> AudioUnitParameterUnit

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AudioUnitParameterUnit

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Encode for AudioUnitParameterUnit

const ENCODING: Encoding = u32::ENCODING

The Objective-C type-encoding for this type.

impl Hash for AudioUnitParameterUnit

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for AudioUnitParameterUnit

fn cmp(&self, other: &AudioUnitParameterUnit) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for AudioUnitParameterUnit

fn eq(&self, other: &AudioUnitParameterUnit) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for AudioUnitParameterUnit

fn partial_cmp(&self, other: &AudioUnitParameterUnit) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl RefEncode for AudioUnitParameterUnit

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Copy for AudioUnitParameterUnit

impl Eq for AudioUnitParameterUnit

impl StructuralPartialEq for AudioUnitParameterUnit