Class TrueAudioProperties

Audio properties for TrueAudio (TTA) streams.

Parses the 18-byte TTA1 header: "TTA" + version byte + audio format (2) + channels (2) + bitsPerSample (2) + sampleRate (4) + sampleFrames (4).

Hierarchy (View Summary)

AudioProperties
- TrueAudioProperties

Index

Constructors

Properties

Accessors

bitrate bitsPerSample channels lengthInMilliseconds lengthInSeconds sampleFrames sampleRate ttaVersion

Constructors

constructor

new TrueAudioProperties(
    data: ByteVector,
    streamLength: number,
    readStyle: ReadStyle,
): TrueAudioProperties
Constructs a TrueAudioProperties instance by parsing the TTA1 header.
Parameters
- data: ByteVector
  Raw bytes beginning with "TTA" (must be at least TTA_HEADER_SIZE bytes for TTA1).
- streamLength: number
  Byte length of the audio stream (excluding tags), used to compute bitrate.
- readStyle: ReadStyle
  Level of detail for property parsing.
Returns TrueAudioProperties
Overrides AudioProperties.constructor
- Defined in trueaudio/trueAudioProperties.ts:46

Properties

`Protected`_readStyle

_readStyle: ReadStyle

The read style used when parsing the audio stream.

Accessors

bitrate

get bitrate(): number
Average bitrate of the stream in kilobits per second.

Returns number
Bitrate in kbps, or 0 if unknown.
Overrides AudioProperties.bitrate
- Defined in trueaudio/trueAudioProperties.ts:67

bitsPerSample

get bitsPerSample(): number
Bits per sample (bit depth) of the audio stream.

Returns number
Bit depth (e.g. 16, 24).
- Defined in trueaudio/trueAudioProperties.ts:103

channels

get channels(): number
Number of audio channels.

Returns number
Channel count (e.g. 2 for stereo).
Overrides AudioProperties.channels
- Defined in trueaudio/trueAudioProperties.ts:83

lengthInMilliseconds

get lengthInMilliseconds(): number
Playback duration in milliseconds.

Returns number
Duration in milliseconds, or 0 if unknown.
Overrides AudioProperties.lengthInMilliseconds
- Defined in trueaudio/trueAudioProperties.ts:59

lengthInSeconds

get lengthInSeconds(): number
Duration rounded to the nearest second.

Returns number
Inherited from AudioProperties.lengthInSeconds
- Defined in audioProperties.ts:22

sampleFrames

get sampleFrames(): number
Total number of PCM sample frames in the stream.

Returns number
Sample frame count.
- Defined in trueaudio/trueAudioProperties.ts:111

sampleRate

get sampleRate(): number
Sample rate of the audio stream in Hz.

Returns number
Sample rate in Hz, or 0 if unknown.
Overrides AudioProperties.sampleRate
- Defined in trueaudio/trueAudioProperties.ts:75

ttaVersion

get ttaVersion(): number
TrueAudio stream version number.

Returns number
The version (e.g. 1 for TTA1).
- Defined in trueaudio/trueAudioProperties.ts:95