astiaudio

Documentation

Index

• func AudioLevel(samples []int32) float64
• func ConvertBitDepth(srcSample int32, srcBitDepth, dstBitDepth int) (dstSample int32, err error)
• func ConvertSampleRate(srcSamples []int32, srcSampleRate, dstSampleRate int) (dstSamples []int32, err error)
• type SilenceDetector
  • func NewSilenceDetector(c SilenceDetectorConfiguration) (d *SilenceDetector)
  • func (d *SilenceDetector) Add(samples []int32, sampleRate int, silenceMaxAudioLevel float64) (validSamples [][]int32)
  • func (d *SilenceDetector) Reset()
• type SilenceDetectorConfiguration

Functions

func AudioLevel

func AudioLevel(samples []int32) float64

AudioLevel computes the audio level of samples https://dsp.stackexchange.com/questions/2951/loudness-of-pcm-stream https://dsp.stackexchange.com/questions/290/getting-loudness-of-a-track-with-rms?noredirect=1&lq=1

func ConvertBitDepth

func ConvertBitDepth(srcSample int32, srcBitDepth, dstBitDepth int) (dstSample int32, err error)

ConvertBitDepth converts the bit depth

func ConvertSampleRate

func ConvertSampleRate(srcSamples []int32, srcSampleRate, dstSampleRate int) (dstSamples []int32, err error)

ConvertSampleRate converts the sample rate

Types

type SilenceDetector

type SilenceDetector struct {
	// contains filtered or unexported fields
}

SilenceDetector represents a silence detector

func NewSilenceDetector

func NewSilenceDetector(c SilenceDetectorConfiguration) (d *SilenceDetector)

NewSilenceDetector creates a new silence detector

func (*SilenceDetector) Add

func (d *SilenceDetector) Add(samples []int32, sampleRate int, silenceMaxAudioLevel float64) (validSamples [][]int32)

Add adds samples to the buffer and checks whether there are valid samples between silences

func (*SilenceDetector) Reset

func (d *SilenceDetector) Reset()

Reset resets the silence detector

type SilenceDetectorConfiguration

type SilenceDetectorConfiguration struct {
	SilenceMinDuration time.Duration `toml:"silence_min_duration"`
	StepDuration       time.Duration `toml:"step_duration"`
}

SilenceDetectorConfiguration represents a silence detector configuration