Duet (iPad and Mac): Setup

How do I use the low latency mixer in Maestro with Duet 2 or Duet for iPad/Mac (USB)?

With Duet’s Maestro software, you can monitor inputs with almost no latency by using the Hardware Monitoring / Maestro Mixer feature. Here’s how to do so for Mac, iPad/iPhone, and Windows 10:

For Mac

First, make sure you have setup your input signal:
  • Open Maestro 2. In the ‘Input’ tab, set Analog Level (+4dBu and -10dBv for Line Levels-XLR only, Mic-XLR only, and Inst-1/4″ only), then set appropriate gain level(s) for your Input(s).

 

Then, select the Mixer in the outputs:
  • In ‘Output’ tab, change source of Main Outs or Headphones to ‘Mixer’.

Now you will hear any adjustments made in the Mixer:
  • In ‘Mixer’ tab, adjust volume level of Input(s) 1 & 2, and Software Return (Outputs 1-2, 3-4 from DAW).

Here’s a video showing how you’d use the Mixer with a recording program (DAW):

 

For iPad/iPhone (Duet for iPad/Mac only)

First, make sure you have setup your input signal:
  • Open Apogee Maestro application. In the ‘Input’ tab, set Analog Level (+4dBu and -10dBv for Line Levels-XLR only, Mic-XLR only, and Inst-1/4″ only), then set appropriate gain level(s) for your Input(s).

Then, select the Mixer in the outputs:
  • In ‘Output’ tab, change source of Main Outs or Headphones to ‘Mixer’.

Now you will hear any adjustments made in the Mixer:
  • In ‘Mixer’ tab, adjust volume level of Input(s) 1 & 2, Software Return (Outputs 1-2, 3-4 from DAW), and Output.

For Windows 10 (Duet for iPad/Mac only)

In Windows, all controls are on the same page:
  • A: Set appropriate Analog Level (+4dBu and -10dBv for Line levels-XLR only, Mic-XLR only, and Inst-1/4″ only).
  • B: Set appropriate Gain level for Inputs.
  • C: In Mixer 1, use volume Faders to adjust volume going to Mixer 1 Master. You can also adjust Master volume of Mixer 1.
  • D: Change source to HPH and Main to Mixer 1 to monitor audio from Mixer 1.

How do I use the custom I/O labels in Logic?

For Logic 9 and lower:

With your Apogee devive selected as the input/output in Logic’s Audio Preferences, go to the “Options” menu and select “Audio” and then “I/O Labels”. Now you can select the custom Apogee labels for your device.

For Logic X and higher:

  • Go to Logic’s Mix menu at the top of the screen and select “I/O Labels…”
  • There are several columns: Channel, Provided by Driver, User, Long, & Short.
  • To use the labels provided by the Ensemble:
    • Click the button in the Provided by Driver column.
  • To enter your own custom label:
    • Click the button in the User column.
    • Double click the “-” in the Long column, type in a new name, then press Return on your Apple keyboard

Here’s a video showing this process: https://apogeedigital.com/blog/apogee-element-tutorial-enable-logics-io-labels

How do I set my software’s I/O buffer?

The I/O Buffer setting found in most audio software is one of the most crucial, but often ignored, settings in a Mac-based recording system. When choosing a buffer setting, a compromise between the latency through the application and the amount of computer processor power accessible to the application must be made.Latency– the slight delay between the moment you play a note and hear it in your headphones after conversion and processing.

A lower buffer setting results in lower latency but less available processing power. If the application can’t access enough processor power, processor overruns may occur, resulting in audible clicks and pops or error messages that interrupt playback and recording. A higher buffer setting, on the other hand, results in greater amount of accessible processor power (i.e. less chance of overruns) but increases the latency. Determining the best setting requires some trial-and-error in order to find the best compromise.

Keep in mind that as tracks and plug-ins are added to a software session, processor requirements increase. Thus, the buffer setting that works during the early stages of a session might result in processor overruns during later stages. The best strategy is to set the buffer to a lower setting during recording and accept certain limitations on plug-in usage, and then raise the buffer during mixing to utilize the computer’s full processor power when latency isn’t an issue. With the processing power of today’s Macs, you may find that adjustment of the buffer isn’t necessary, and you can leave it at a setting for low latency and still access a sufficient amount of processing power when adding tracks and plug-ins. If you do encounter clicks, pops or software errors, don’t hesitate to experiment with the buffer setting. Please consult the section on Working with GarageBand, Logic and Mainstage to determine how to se the I/O buffer setting is found in your audio application.