dac

package module

v0.0.0-...-e41b870 Latest Latest Go to latest Published: May 30, 2017 License: MIT Imports: 5 Imported by: 0

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

github.com/eliothedeman/dac

Links

Open Source Insights

README ¶

dac

Documentation ¶

Rendered for

Index ¶

func FreeBuffer(b *Buffer)
func SetBufferSize(s int)
func SetSampleRate(r int)
type AudioCallback
type AudioInterface
type AudioInterfaceCallback
type Buffer
- func GetBuffer(channels int) *Buffer
type DAC
- func NewDAC(sampleRate, bufferSize, inputChannels, outputChannels int) (d *DAC, err error)
- func (d *DAC) MainLoop()
- func (d *DAC) OnAudio(a AudioCallback)
type Output
- func (o *Output) Read(channel int) *Buffer

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func FreeBuffer ¶

func FreeBuffer(b *Buffer)

FreeBuffer will pull a new buffer from the cache

func SetBufferSize ¶

func SetBufferSize(s int)

SetBufferSize initializes the buffer cache with sample size

func SetSampleRate ¶

func SetSampleRate(r int)

SetSampleRate sets the sample rate of buffers and re initilizes the cache

Types ¶

type AudioCallback ¶

type AudioCallback func(in, out *Buffer) error

AudioCallback will be executed at every sample buffer

type AudioInterface ¶

type AudioInterface func(sampleRate, bufferSize, inChannels, outChannels int) (AudioInterfaceCallback, error)

AudioInterface constructs a new input callback

type AudioInterfaceCallback ¶

type AudioInterfaceCallback func(AudioCallback) error

AudioInterfaceCallback Will run on the audio interface

type Buffer ¶

type Buffer struct {
	SampleRate int         // Samples per second
	Samples    [][]float64 // PCM data
}

Buffer holds audio samples

func GetBuffer ¶

func GetBuffer(channels int) *Buffer

GetBuffer will pull a new buffer from the cache

func (*Buffer) Add ¶

func (b *Buffer) Add(n *Buffer)

Add two buffers

func (*Buffer) Channels ¶

func (b *Buffer) Channels() int

Channels returns the number of channels

func (*Buffer) Clear ¶

func (b *Buffer) Clear()

Clear the buffer to all 0s

func (*Buffer) Copy ¶

func (b *Buffer) Copy() *Buffer

Copy the buffer

func (*Buffer) GetSample ¶

func (b *Buffer) GetSample(channel, index int) float64

GetSample returns the sample at the given index

func (*Buffer) Len ¶

func (b *Buffer) Len() int

Len returns the number of samples in the bufffer, per channel

func (*Buffer) Multiply ¶

func (b *Buffer) Multiply(n *Buffer)

Multiply two buffers

func (*Buffer) SetSample ¶

func (b *Buffer) SetSample(channel, index int, sample float64)

SetSample returns the sample at the given index

type DAC ¶

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

DAC is a digital audio converter. It provides an interface for reading and writing audio samples

func NewDAC ¶

func NewDAC(sampleRate, bufferSize, inputChannels, outputChannels int) (d *DAC, err error)

NewDAC connects to the given dac and opens given chennels

func (*DAC) MainLoop ¶

func (d *DAC) MainLoop()

func (*DAC) OnAudio ¶

func (d *DAC) OnAudio(a AudioCallback)

OnAudio adds a new input callback

type Output ¶

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

Output is an analog to digital converter

func (*Output) Read ¶

func (o *Output) Read(channel int) *Buffer

Read audio from a given channel

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
cmd
example
gen

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL