voicemeeter-api-python/README.md

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# Python Wrapper for Voicemeeter API
This package offers a Python interface for the Voicemeeter Remote C API.
For an outline of past/future changes refer to: [CHANGELOG](CHANGELOG.md)
## Tested against
- Basic 1.0.8.2
- Banana 2.0.6.2
- Potato 3.0.2.2
## Requirements
- [Voicemeeter](https://voicemeeter.com/)
- Python 3.11 or greater
## Installation
### `Pip`
Install voicemeeter-api package from your console
`pip install voicemeeter-api`
## `Use`
Simplest use case, use a context manager to request a Remote class of a kind.
Login and logout are handled for you in this scenario.
#### `__main__.py`
```python
import voicemeeterlib
class ManyThings:
def __init__(self, vm):
self.vm = vm
def things(self):
self.vm.strip[0].label = "podmic"
self.vm.strip[0].mute = True
print(
f"strip 0 ({self.vm.strip[0].label}) has been set to {self.vm.strip[0].mute}"
)
def other_things(self):
info = (
f"bus 3 gain has been set to {self.vm.bus[3].gain}",
f"bus 4 eq has been set to {self.vm.bus[4].eq}",
)
self.vm.bus[3].gain = -6.3
self.vm.bus[4].eq = True
print("\n".join(info))
def main():
with voicemeeterlib.api(kind_id) as vm:
do = ManyThings(vm)
do.things()
do.other_things()
# set many parameters at once
vm.apply(
{
"strip-2": {"A1": True, "B1": True, "gain": -6.0},
"bus-2": {"mute": True},
"button-0": {"state": True},
"vban-in-0": {"on": True},
"vban-out-1": {"name": "streamname"},
}
)
if __name__ == "__main__":
kind_id = "banana"
main()
```
Otherwise you must remember to call `vm.login()`, `vm.logout()` at the start/end of your code.
## `kind_id`
Pass the kind of Voicemeeter as an argument. kind_id may be:
- `basic`
- `banana`
- `potato`
## `Available commands`
### Strip
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The following properties are available.
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- `mono`: boolean
- `solo`: boolean
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- `mute`: boolean
- `gain`: float, from -60.0 to 12.0
- `comp`: float, from 0.0 to 10.0
- `gate`: float, from 0.0 to 10.0
- `audibility`: float, from 0.0 to 10.0
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- `limit`: int, from -40 to 12
- `A1 - A5`, `B1 - B3`: boolean
- `label`: string
- `device`: string
- `sr`: int
- `mc`: boolean
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- `k`: int, from 0 to 4
- `bass`: float, from -12.0 to 12.0
- `mid`: float, from -12.0 to 12.0
- `treble`: float, from -12.0 to 12.0
- `reverb`: float, from 0.0 to 10.0
- `delay`: float, from 0.0 to 10.0
- `fx1`: float, from 0.0 to 10.0
- `fx2`: float, from 0.0 to 10.0
- `pan_x`: float, from -0.5 to 0.5
- `pan_y`: float, from 0.0 to 1.0
- `color_x`: float, from -0.5 to 0.5
- `color_y`: float, from 0.0 to 1.0
- `fx_x`: float, from -0.5 to 0.5
- `fx_y`: float, from 0.0 to 1.0
- `postreverb`: boolean
- `postdelay`: boolean
- `postfx1`: boolean
- `postfx2`: boolean
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example:
```python
vm.strip[3].gain = 3.7
print(vm.strip[0].label)
```
The following methods are Available.
- `appgain(name, value)`: string, float, from 0.0 to 1.0
Set the gain in db by value for the app matching name.
- `appmute(name, value)`: string, bool
Set mute state as value for the app matching name.
example:
```python
vm.strip[5].appmute("Spotify", True)
vm.strip[5].appgain("Spotify", 0.5)
```
##### Gainlayers
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- `gain`: float, from -60.0 to 12.0
example:
```python
vm.strip[3].gainlayer[3].gain = 3.7
```
Gainlayers are defined for potato version only.
##### Levels
The following properties are available.
- `prefader`
- `postfader`
- `postmute`
example:
```python
print(vm.strip[3].levels.prefader)
```
Level properties will return -200.0 if no audio detected.
### Bus
The following properties are available.
- `mono`: boolean
- `eq`: boolean
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- `eq_ab`: boolean
- `mute`: boolean
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- `sel`: boolean
- `gain`: float, from -60.0 to 12.0
- `label`: string
- `device`: string
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- `sr`: int
- `returnreverb`: float, from 0.0 to 10.0
- `returndelay`: float, from 0.0 to 10.0
- `returnfx1`: float, from 0.0 to 10.0
- `returnfx2`: float, from 0.0 to 10.0
- `monitor`: boolean
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example:
```python
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vm.bus[3].gain = 3.7
print(vm.bus[0].label)
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vm.bus[4].mono = True
```
##### Modes
The following properties are available.
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- `normal`: boolean
- `amix`: boolean
- `bmix`: boolean
- `composite`: boolean
- `tvmix`: boolean
- `upmix21`: boolean
- `upmix41`: boolean
- `upmix61`: boolean
- `centeronly`: boolean
- `lfeonly`: boolean
- `rearonly`: boolean
The following methods are available.
- `get()`: Returns the current bus mode
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example:
```python
vm.bus[4].mode.amix = True
print(vm.bus[2].mode.get())
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```
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##### Levels
The following properties are available.
- `all`
example:
```python
print(vm.bus[0].levels.all)
```
`levels.all` will return -200.0 if no audio detected.
### Strip | Bus
The following methods are available.
- `fadeto(amount, time)`: float, int
- `fadeby(amount, time)`: float, int
Modify gain to or by the selected amount in db over a time interval in ms.
example:
```python
vm.strip[0].fadeto(-10.3, 1000)
vm.bus[3].fadeby(-5.6, 500)
```
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### Macrobuttons
The following properties are available.
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- `state`: boolean
- `stateonly`: boolean
- `trigger`: boolean
example:
```python
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vm.button[37].state = True
vm.button[55].trigger = False
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```
### Recorder
The following methods are available
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- `play()`
- `stop()`
- `pause()`
- `record()`
- `ff()`
- `rew()`
- `load(<filepath>)`: string
The following properties are available
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- `loop`: boolean
- `A1 - A5`: boolean
- `B1 - A3`: boolean
example:
```python
vm.recorder.play()
vm.recorder.stop()
# Enable loop play
vm.recorder.loop = True
# Disable recorder out channel B2
vm.recorder.B2 = False
# filepath as raw string
vm.recorder.load(r'C:\music\mytune.mp3')
```
Recorder properties are defined as write only.
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### VBAN
- `vm.vban.enable()` `vm.vban.disable()` Turn VBAN on or off
##### Instream | Outstream
The following properties are available.
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- `on`: boolean
- `name`: string
- `ip`: string
- `port`: int, range from 1024 to 65535
- `sr`: int, (11025, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000)
- `channel`: int, from 1 to 8
- `bit`: int, 16 or 24
- `quality`: int, from 0 to 4
- `route`: int, from 0 to 8
`SR`, `channel` and `bit` are defined as:
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- readonly for instreams.
- read and write for outstreams.
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example:
```python
# turn VBAN on
vm.vban.enable()
# turn on vban instream 0
vm.vban.instream[0].on = True
# set bit property for outstream 3 to 24
vm.vban.outstream[3].bit = 24
```
### Command
Certain 'special' commands are defined by the API as performing actions rather than setting values.
The following methods are available:
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- `show()` : Bring Voiceemeter GUI to the front
- `shutdown()` : Shuts down the GUI
- `restart()` : Restart the audio engine
- `reset()`: Applies the `reset` config. (phys strip B1, virt strip A1, gains, comp, gate 0.0, mute, mono, solo, eq false)
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The following properties are available.
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- `showvbanchat`: boolean
- `lock`: boolean
example:
```python
vm.command.restart()
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vm.command.showvbanchat = True
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```
`showvbanchat` and `lock` are write only.
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### Device
- `ins` `outs` : Returns the number of input/output devices
- `input(i)` `output(i)` : Returns a dict of device properties for device[i]
example:
```python
import voicemeeterlib
with voicemeeterlib.api(kind_id) as vm:
for i in range(vm.device.ins):
print(vm.device.input(i))
```
### FX
The following properties are available:
- `reverb`: boolean
- `reverb_ab`: boolean
- `delay`: boolean
- `delay_ab`: boolean
example:
```python
vm.fx.reverb_ab = True
```
### Patch
The following properties are available:
- `postfadercomposite`: boolean
- `postfxinsert`: boolean
example:
```python
vm.patch.postfxinsert = False
```
##### asio[i]
- `get()`: int
- `set(patch_in)`: int, valid range determined by connected device.
example:
```python
vm.patch.asio[3].set(4)
```
i, from 0 to 10
##### A2[i] - A5[i]
- `get()`: int
- `set(patch_out)`: int, valid range determined by connected device.
example:
```python
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vm.patch.A3[5].set(3)
```
i, from 0 to 8.
##### composite[i]
- `get()`: int
- `set(channel)`: int, from 0 up to number of channels depending on version.
example:
```python
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vm.patch.composite[7].set(4)
```
i, from 0 to 8.
##### insert[i]
- `on`: boolean
example:
```python
vm.patch.insert[18].on = True
```
i, from 0 up to number of channels depending on version.
### Option
The following properties are available:
- `sr`: int
- `asiosr`: boolean
- `monitoronsel`: boolean
example:
```python
vm.option.sr = 48000
```
The following methods are available:
- `buffer(driver, buffer)` : Set buffer size for particular audio driver.
example:
```python
vm.option.buffer("wdm", 512)
```
driver defined as one of ("mme", "wdm", "ks", "asio")
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buffer, from 128 to 2048
##### delay[i]
- `get()`: int
- `set(delay)`: int, from 0 to 500
example:
```python
vm.option.delay[4].set(30)
```
i, from 0 up to 4.
### Midi
The following properties are available:
- `channel`: int, returns the midi channel
- `current`: int, returns the current (or most recently pressed) key
The following methods are available:
- `get(key)`: int, returns most recent velocity value for a key
example:
```python
print(vm.midi.get(12))
```
get() may return None if no value for requested key in midi cache
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### Multiple parameters
- `apply`
Set many strip/bus/macrobutton/vban parameters at once, for example:
```python
vm.apply(
{
"strip-2": {"A1": True, "B1": True, "gain": -6.0},
"bus-2": {"mute": True},
"button-0": {"state": True},
"vban-in-0": {"on": True},
"vban-out-1": {"name": "streamname"},
}
)
```
Or for each class you may do:
```python
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vm.strip[0].apply(mute: True, gain: 3.2, A1: True)
vm.vban.outstream[0].apply(on: True, name: 'streamname', bit: 24)
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```
## Config Files
`vm.apply_config(<configname>)`
You may load config files in TOML format.
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Three example configs have been included with the package. Remember to save
current settings before loading a user config. To set one you may do:
```python
import voicemeeterlib
with voicemeeterlib.api('banana') as vm:
vm.apply_config('example')
```
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will load a user config file at configs/banana/example.toml for Voicemeeter Banana.
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## `Base Module`
### Remote class
Access to lower level Getters and Setters are provided with these functions:
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- `vm.get(param, is_string=False)`: For getting the value of any parameter. Set string to True if getting a property value expected to return a string.
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- `vm.set(param, value)`: For setting the value of any parameter.
Access to lower level polling functions are provided with these functions:
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- `vm.pdirty()`: Returns True if a parameter has been updated.
- `vm.mdirty()`: Returns True if a macrobutton has been updated.
- `vm.ldirty()`: Returns True if a level has been updated.
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example:
```python
vm.get('Strip[2].Mute')
vm.set('Strip[4].Label', 'stripname')
vm.set('Strip[0].Gain', -3.6)
```
### Run tests
To run all tests:
```
pytest -v
```
### Official Documentation
- [Voicemeeter Remote C API](https://github.com/onyx-and-iris/Voicemeeter-SDK/blob/main/VoicemeeterRemoteAPI.pdf)