Enum Medium 

pub enum Medium {
    None,
    TapeOxide,
    BbdLeakage,
    DigitalQuantize,
}

Physical storage medium model for the delay buffer.

In real tape and BBD circuits, the storage medium itself transforms the signal while it sits in the buffer. This is physically distinct from write-side processing (saturation at the record head) and read-side processing (gap loss at playback heads), which are handled by WDF elements in the signal chain.

The medium processing uses a zone-based approach: the virtual tape path is divided into zones, and each sample gets processed once as it crosses a zone boundary. This is O(zones) per tick, not O(buffer_length), keeping CPU cost negligible.

Variants

None

Clean digital delay — no buffer processing.

TapeOxide

Magnetic tape self-demagnetization. Adjacent domains with opposing polarity partially cancel, causing frequency-dependent HF loss that increases with distance from the record head. Short wavelengths (high frequencies) are affected more because opposing domains are physically closer.

BbdLeakage

BBD charge leakage. Amplitude decays uniformly toward zero over time (not frequency- dependent like tape). Each bucket loses a fraction of its charge on every clock cycle.

DigitalQuantize

Digital bit reduction (PT2399-style). Quantization happens at write time only — no ongoing buffer processing. The process_medium() method is a no-op for this mode.

Trait Implementations

impl Clone for Medium

fn clone(&self) -> Medium

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Medium

impl Debug for Medium

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

Formats the value using the given formatter.

impl Eq for Medium

impl PartialEq for Medium

fn eq(&self, other: &Medium) -> 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 StructuralPartialEq for Medium