Struct AudioMetadata 

pub struct AudioMetadata {
    pub sample_rate: u32,
    pub bit_depth: u8,
    pub num_channels: u8,
    pub num_samples: Option<usize>,
    pub duration_secs: Option<f64>,
    pub tags: HashMap<String, String>,
}

Audio metadata for signal processing

Stores standard audio properties that can be embedded in WAV/FLAC files or used for proper signal reconstruction.

Fields

sample_rate: u32

Sample rate in Hz

bit_depth: u8

Bit depth (8, 16, 24, 32)

num_channels: u8

Number of channels (1=mono, 2=stereo)

num_samples: Option<usize>

Total number of samples

duration_secs: Option<f64>

Duration in seconds

tags: HashMap<String, String>

Additional metadata tags

Implementations

impl AudioMetadata

pub fn new( sample_rate: u32, bit_depth: u8, num_channels: u8, ) -> TokenizerResult<Self>

Create new audio metadata

pub fn from_signal( signal: &Array1<f32>, sample_rate: u32, bit_depth: u8, num_channels: u8, ) -> TokenizerResult<Self>

Create metadata from signal length

pub fn set_tag(&mut self, key: impl Into<String>, value: impl Into<String>)

Set a metadata tag

pub fn get_tag(&self, key: &str) -> Option<&str>

Get a metadata tag

pub fn nyquist_frequency(&self) -> f32

Compute Nyquist frequency

pub fn duration(&self) -> Option<f64>

Get duration in seconds

pub fn to_wav_metadata(&self) -> String

Export as WAV-compatible metadata JSON

pub fn from_wav_metadata(json: &str) -> TokenizerResult<Self>

Import from WAV-compatible metadata JSON

Trait Implementations

impl Clone for AudioMetadata

fn clone(&self) -> AudioMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AudioMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AudioMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for AudioMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.