How to setup Audio Preferences

First of all, open your Ohm Studio Preferences and make sure you find yourself under the Audio tab.



Overall setup


  1. Choose a driver type in the Audio Engine drop-down menu.

    On Mac, you can leave it on Core Audio.
    On Windows, it is highly recommended to choose ASIO. If there are no ASIO drivers installed on your computer, you should download and install asio4all drivers. However, it is usually recommended to install and use drivers specifically designed for your audio device.


  2. Choose a device in the Input Device drop-down menu (e.g. built-in microphone) or set to <None>.
  3. Choose a device in the Output Device drop-down menu (e.g. built-in output).

    You might have to install drivers specifically written for your Audio Device by its manufacturer in order to see its Inputs/Ouputs in the list.
    It is recommended to use the same device for both Input and Output.


  4. Choose a Sample Rate that best matches your Audio Device properties.

    Larger values result in lower latency at the cost of higher CPU use.
    44100 is usually considered a suitable Sample Rate setting.
    It is recommended that all project members use the same Sample Rate to avoid potential problems related to collaboration.

  5. Choose the Buffer Size that Ohm Studio will use to buffer incoming and outcoming audio data. 

    Smaller values result in lower latency at the cost of higher CPU use.
    512 is usually considered the maximal value for live recording. Comfort zone starts at 256 and below.
    If you're using an ASIO driver (except ASIO4ALL), it is advisable to have the same buffer setting in Ohm Studio than in you audio interface setting. If the value is given in ms in your audio driver use the conversion table provided within the troubleshooting section


  6. Latency is for the advanced users who want a very accurate recording - if you're not a very tight player with your instrument, you shall not bother. Still here ? Little know fact: in addition to buffers, your audio interface induces its own latency due to analog/digital conversion. While each manufacturer provides a reference value, it's only an approximation. That's why Ohm Studio offers you to finetune it. To do so, record Ohm Studio playing the metronome (mic on your speakers - desactivate monitoring first!). If you notice a difference in the sample recorded between the clics and the time reference, you need to tweek latency. Try value between 0 and 100 first - usually it's enough. Values can be positive or negative (although most likely positive). It will be a trial and error process but once it's done, it's done for good (at the corresponding setting of sample rate and buffer size). In the future, the "calibrate" button will be activated and you'll only have to click it.
    Once again, it's precision adjustment. Most of the time it's not needed.




Audio Input



  1. If you don't already have one, add an Audio Input to the list by clicking on the + / - button.
  2. Click on ▲ / ▼ to add/remove channels to/from that Audio Input (e.g. 1 channel for a mono input, 2 channels for a stereo input).
  3. Map each channel of your Audio Input to a physical input (the number of physical inputs available depends on the audio device you are using).
  4. you can add as many input configuration as you want with the +/- button

Exemple: if you want to have on mono and one stereo input out of your audio interface, do the following:

Input 1:
Ohmstudio input # 1 > your audio interface Ch1 ( or left ) = one channel in mono 
Add an input (+ button)
Ohmstudio input # 1 / 2 > your audio interface Ch1 / CH 2 = two channels stereo 


Audio Output



By default, Ohm Studio creates one stereo Audio Output.


Assign both the left and right channel (i.e. Chn 1 and Chn 2) of that Audio Output to an output channel of your audio device.


The stereo output of the Master Rack is automatically assigned to this Audio Output.





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