A Go Wrapper for Voicemeeter API

This package offers a Go interface for the Voicemeeter Remote C API.

For an outline of past/future changes refer to: CHANGELOG

Tested against

• Basic 1.0.8.4
• Banana 2.0.6.4
• Potato 3.0.2.4

Requirements

• Voicemeeter
• Go 1.18 or greater

Installation

Initialize your own module then go get

go mod init github.com/x/y
go get github.com/onyx-and-iris/voicemeeter

Use

main.go

package main

import (
	"fmt"
	"log"

	"github.com/onyx-and-iris/voicemeeter"
)

func main() {
	vm, err := vmConnect()
	if err != nil {
		log.Fatal(err)
	}
	defer vm.Logout()

	vm.Strip[0].SetLabel("rode podmic")
	vm.Strip[0].SetMute(true)
	fmt.Printf("Strip 0 (%s) mute was set to %v\n", vm.Strip[0].GetLabel(), vm.Strip[0].GetMute())
}

func vmConnect() (*voicemeeter.Remote, error) {
	vm, err := voicemeeter.NewRemote("banana", 20)
	if err != nil {
		return nil, err
	}

	err = vm.Login()
	if err != nil {
		return nil, err
	}

	return vm, nil
}

voicemeeter.NewRemote(<kindId>, <delay>)

kindId

Pass the kind of Voicemeeter as an argument. kindId may be:

• basic
• banana
• potato

delay

Pass a delay in milliseconds to force the getters to wait for dirty parameters to clear.

Useful if not running callbacks.

Remote Type

vm.Strip

[]t_strip slice containing both physicalStrip and virtualStrip types

vm.Bus

[]t_bus slice containing both physicalBus and virtualBus types

vm.Button

[]button slice containing button types, one for each macrobutton

vm.Command

pointer to command type, represents action type functions

vm.Vban

pointer to vban type, containing both vbanInStream and vbanOutStream slices

vm.Device

pointer to device type, represents physical input/output hardware devices

vm.Recorder

pointer to recorder type, represents the recorder

vm.Midi

pointer to midi type, represents a connected midi device

vm.Type()

returns the type of Voicemeeter as a string

vm.Version()

returns the version of Voicemeeter as a string

vm.GetFloat(<param>)

gets a float parameter value

vm.SetFloat(<param>, <value>)

sets a float parameter value eg. vm.SetFloat("strip[0].mute", 1)

vm.GetString(<param>)

gets a string parameter value

vm.SetString(<param>, <value>)

sets a string parameter value eg. vm.SetString("strip[0].label", "podmic")

vm.SendText(<script>)

sets many parameters in script format eg. ("Strip[0].Mute=1;Bus[3].Gain=3.6")

vm.Register(o observer)

register an observer type as an observer

vm.Deregister(o observer)

deregister an observer type as an observer

vm.EventAdd(<events>)

adds a single or multiple events to the pooler. Accepts a string or slice of strings.

vm.EventRemove(<events>)

removes a single or multiple events from the pooler. Accepts a string or slice of strings.

vm.Pdirty()

returns True iff a GUI parameter has changed

vm.Mdirty()

returns True iff a macrobutton parameter has changed

vm.Sync()

Use this to force dirty parameters to clear after a delay in milliseconds.

Available commands

Strip

The following methods are available

• GetMute() bool
• SetMute(val bool)
• GetMono() bool
• SetMono(val bool)
• GetSolo() bool
• SetSolo(val bool)
• GetLimit() int
• SetLimit(val int) from -40 to 12
• GetLabel() string
• SetLabel(val string)
• GetGain() float64
• SetGain(val float64) from -60.0 to 12.0
• GetMc() bool
• SetMc(val bool)
• GetComp() float64
• SetComp(val float64) from 0.0 to 10.0
• GetGate() float64
• SetGate(val float64) from 0.0 to 10.0
• GetAudibility() float64
• SetAudibility(val float64) from 0.0 to 10.0
• GetA1() bool - GetA5() bool
• SetA1(val bool) - SetA5(val bool)
• AppGain(name string, gain float64)
• AppMute(name string, val bool)

example:

vm.Strip[3].SetGain(3.7)
fmt.Println(vm.Strip[0].GetLabel())
vm.Strip[4].SetA1(true)

vm.Strip[5].AppGain("Spotify", 0.5)
vm.Strip[5].AppMute("Spotify", true)

Gainlayers

• vm.Strip[i].GainLayer()[j]

The following methods are available

• Get() float64
• Set(val float64)

example:

vm.Strip[6].GainLayer()[3].Set(-13.6)

Levels

• vm.Strip[i].Levels()

The following methods are available

• PreFader() []float64
• PostFader() []float64
• PostMute() []float64

example:

fmt.Println(vm.Strip[5].Levels().PreFader())

Bus

The following methods are available

• String() string
• GetMute() bool
• SetMute(val bool)
• GetEq() bool
• SetEq(val bool)
• GetMono() bool
• SetMono(val bool)
• GetLabel() string
• SetLabel(val string)
• GetGain() float64
• SetGain(val float64) from -60.0 to 12.0

vm.Bus[3].SetEq(true)
fmt.Println(vm.Bus[0].GetLabel())

Modes

• vm.Bus[i].Mode()

The following methods are available

• SetNormal(val bool)
• GetNormal() bool
• SetAmix(val bool)
• GetAmix() bool
• SetBmix(val bool)
• GetBmix() bool
• SetRepeat(val bool)
• GetRepeat() bool
• SetComposite(val bool)
• GetComposite() bool
• SetTvMix(val bool)
• GetTvMix() bool
• SetUpMix21(val bool)
• GetUpMix21() bool
• SetUpMix41(val bool)
• GetUpMix41() bool
• SetUpMix61(val bool)
• GetUpMix61() bool
• SetCenterOnly(val bool)
• GetCenterOnly() bool
• SetLfeOnly(val bool)
• GetLfeOnly() bool
• SetRearOnly(val bool)
• GetRearOnly() bool

example:

vm.Bus[3].Mode().SetAmix(true)
vm.Bus[4].Mode().SetCenterOnly(true)

Levels

• vm.Bus[i].Levels()

The following methods are available

• All() []float64

example:

fmt.Println(vm.Bus[1].Levels().All())

Strip | Bus

The following methods are available.

• FadeTo(target float64, time_ int): float, int
• FadeBy(change float64, time_ int): float, int

Modify gain to or by the selected amount in db over a time interval in ms.

example:

vm.Strip[3].FadeBy(-8.3, 500)
vm.Bus[3].FadeTo(-12.8, 500)

Button

The following methods are available

• GetState() bool
• SetState(val bool)
• GetStateOnly() bool
• SetStateOnly(val bool)
• GetTrigger() bool
• SetTrigger(val bool)

example:

vm.Button[37].SetState(true)
fmt.Println(vm.Button[64].GetStateOnly())

Command

The following methods are available

• Show() Show Voicemeeter GUI if it's hidden
• Hide() Hide Voicemeeter GUI if it's shown
• Shutdown() Shuts down the GUI
• Restart() Restart the audio engine
• Lock(val bool) Lock the Voicemeeter GUI

example:

vm.Command.Restart()
vm.Command.Show()

VBAN

• vm.Vban.Enable() vm.Vban.Disable() Turn VBAN on or off

Instream | Outstream

• vm.Vban.InStream vm.Vban.OutStream

The following methods are available

• GetOn() bool
• SetOn(val bool)
• GetName() string
• SetName(val string)
• GetIp() string
• SetIp(val string)
• GetPort() int
• SetPort(val int) from 1024 to 65535
• GetSr() int
• SetSr(val int) (11025, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000)
• GetChannel() int
• SetChannel(val int) from 1 to 8
• GetBit() int
• SetBit(val int) 16 or 24
• GetQuality() int
• SetQuality(val int) from 0 to 4
• GetRoute() int
• SetRoute(val int) from 0 to 8

example:

# turn VBAN on
vm.Vban.Enable()

// turn on vban instream 0
vm.Vban.InStream[0].SetOn(true)

// set bit property for outstream 3 to 24
vm.Vban.OutStream[3].SetBit(24)

Device

The following methods are available

• Ins()
• Outs()
• Input(val int)
• Output(val int)

example:

for i := 0; i < int(vm.Device.Ins()); i++ {
	fmt.Println(vm.Device.Input(i))
}

Recorder

The following methods are available

• Play()
• Stop()
• Pause()
• Replay()
• Record()
• Ff()
• Rew()

example:

vm.Recorder.Play()
vm.Recorder.Stop()

# Enable loop play
vm.Recorder.Loop(true)

# Disable recorder out channel B2
vm.Recorder.SetB2(false)

Midi

The following methods are available

• Channel() returns the current midi channel
• Current() returns the most recently pressed midi button
• Get(<button>) returns the value in cache for the midi button

example:

var current = vm.Midi.Current()
var val = vm.Midi.Get(current)

Events

By default level updates are disabled. Any event may be enabled or disabled. The following events exist:

• pdirty parameter updates
• mdirty macrobutton updates
• midi midi updates
• ldirty level updates

example:

events := []string{"ldirty", "mdirty", "pdirty"}

vm.EventAdd(events...)

vm.EventRemove(events...)

Run tests

To run all tests:

go test ./...

Official Documentation

• Voicemeeter Remote C API