Routing Audio from Your Apps Directly Into Your Zoom Call (Or Other Voice Chat App) with Loopback

UPDATE: Learn more about Loopback from my interview with CEO Paul Kafasis on my podcast. Listen and subscribe below…

Listen on Apple Podcasts

Listen on Spotify

RSS Feed

Loopback is an app that creates custom audio ins and outs for the Mac using the audio of other apps.

Have you been teaching a class in Google Meet or Zoom and wanted to play a song from iTunes for your digital classroom? Or perhaps a YouTube video or any other application with audio?

Sure, you can play it right on your computer and let the audio from your speakers go straight back into the microphone input of your computer. This works ok in my opinion. But it isn't going to produce a pure representation of the audio I am trying to send. And in some cases, it creates issues with echo, delay, or a nasty feedback loop.

So what do you do? Rogue Amoeba makes excellent Mac apps that, for lack of better explanation, hack into the audio system of your Mac. I have written about Audio Hijack here before, their app that allows you to record audio from other applications (and that's just the start of all the powerful things it can do). Rogue Amoeba also makes an excellent utility called Loopback.

What does Loopback do? Think about your computer's audio settings. You have an Input and an Output. The Input is, by default, your computer microphone, and the Output is the speakers. If you connect an audio interface that has higher quality microphone and speakers plugged in, you would need to set the Input and Output to that interface to get the input and out put the be the microphone and speakers, respectively.

Usually my computer microphone is a Device that can be set to the computer’s Input. In the scenario above, Loopback has allowed me to combine the audio from my microphone and the Music app into a new audio Device called “Music+Mic” that can be selected as the input of my Mac or any individual app.

Your Inputs and Outputs can be controlled from the Sound settings of your computer. Some audio apps also let you control how, specifically, they behave. For example, I have manually set up GarageBand and Skype to use my audio interface as the Device I use for input so that whether I am recording for my podcast, or simply catching up with a relative, they hear me through the microphone, no matter what Device my Mac’s audio Output is set to in the System Preferences.

Loopback allows you to create Inputs and Outputs that are accessible to your Mac's Sound settings as well as your apps. In the example above, I have created an Input that combines my Mac's microphone (the usual Input) with the output of the Apple Music app, something I might want to use to play a recording example for my students in a Google Meet.

Selecting my new audio Device from the System Preferences.

Look now as I go to my computer's Sound settings, and I can select this new custom Input to be used across the entire operating system! This way, when I am in a Google Meet, students are hearing both me speaking through the mic and all of the output of the Music app.

Now I can route my band warm up tracks, reference recordings, or any other audio I desire, into my Google Meet classrooms.

Integrating Luna Display Into the Classroom

My wife gave me a Luna Display for my birthday and I have been really impressed with it so far. Luna is a USB-C dongle that plugs into a Mac. Using the companion app on iPad, you can access the entirety of macOS, wirelessly. 

I cannot wait to use this device this coming school year. I teach in about five different classrooms which makes transporting my Mac cumbersome. It is heavy, always running out of battery, and is missing some of my iOS music apps like forScore and Tonal Energy. The light form factor of my iPad Pro is perfect for toting around the building in one hand.

There are a few problems with this. I am still faster on macOS for one. And more importantly, there is software on the Mac that I cannot take full advantage of on the iPad. I depend heavily on FileMaker for a tracking student data, assessments, and assignments. I have discussed that workflow on two episodes of The Class Nerd podcast. This episode on tracking student data and this episode, which is a bit miscellaneous. For whatever reason, keyboard input on certain parts of the user interface is slow on FileMaker Go, the iOS version of the app. Even though I can do 90 percent of the things I need to with my database on iOS, the typing speed slows me down.

Luna Display puts macOS right on the screen of my iPad.

It is for reasons like this that I am thrilled to use Luna Display in school next year. The experience of using the app is so smooth that at times I forget I am not using my Mac. Are there issues? Tons. But I stop to wonder every now and then why it is again that macOS can’t work with touch.

I also use a score editing app called Dorico on my Mac. Not as often as FileMaker, but enough that it is sorely missed on iOS. I have not tried to operate this application on the Luna Display but in full screen mode I suspect it isn’t so bad. Once I give it a shot I will report back.

App of the Week: Drafts 5

My ability to handle the cognitive load of teaching middle school band is largely supported by a wonderful app called Drafts, made by Agile Tortoise. I will detail a little bit about how I use this app below, but I want to first say that the developer of Drafts, Greg Pierce, very generously chatted with me about it on my podcast recently. Greg also has a background in guitar, ethnomusicology, and folk studies. He has an interesting journey towards app development, which we also talked about on the show. Listen to the episode here.

So what is Drafts? Drafts is the starting point for all text on my iPhone and iPad. It sits on the dock, right under my thumb, and I press it every time I have any kind of thought that I don’t want to slip away. Drafts opens to a blank white screen and a keyboard so you can instantly start typing. Adding a new Draft is as simple as tapping the plus button. You don't need to worry about what kinds of thoughts these are, or what kinds of apps you should be capturing them in. They can be todos, messages, emails, future blog posts, anything. Picture me at the front of the classroom before band rehearsal. 70 students pouring into the room. Instruments blaring loud. Countless questions being thrown at me at once. Chaos all around. From the podium, I leave Drafts open alongside my sheet music and type anything that comes to mind. If a student tells me they don’t have a 2nd trombone part to Air and Dance, I write a note in Drafts. If a flute is broken, I start an email to the repair shop requesting for them to come pick it up. If I want to take general notes on our rehearsal progress, I start typing that in another draft. Even if I remember I need eggs at the grocery store later, I type that too!

A beautiful, distraction free, user interface, as soon as you launch Drafts.

Drafts pairs perfectly with the sheet music app forScore in split view mode.

All of this stuff is categorized in the inbox where I can easily access it by swiping to the right. Here I can view any current or past archived draft, flag important ones, or send them to the trash. Once I am ready to process it all, I swipe left to reveal actions. Actions can do many things. At the most simple level, they send text to other apps like messages, email, a todo app, or Twitter. But actions can be heavily customized. They can perform multiple steps on text, and even run JavaScript on them. In the example below, you can see that I have a variety of drafts. Meeting notes, a few tasks, a start to a grocery list, a text to my wife, and the beginning of an email. To process these I would use the following actions, respectively: Send the meeting notes to the Apple Notes app, the tasks go to OmniFocus (where I manage all of my todos), the groceries go into my Reminders app grocery list, the text to my wife goes to Messages, and the email goes to Mail. Many of these actions happen in the background, meaning that I don't leave Drafts, and can therefore process them really quickly. You don't need to be a fancy pants to get awesome actions into Drafts, by the way. Some of my most frequently used actions are built into the app. There is also an Action Directory where you can steal the wonderful actions that others have already made. 

Swiping right reveals all unprocessed drafts.

Swiping left reveals all of the various actions you can perform on drafts.

Drafts 5, the newest version, was released recently. The app is free which means there is absolutely no excuse not to give it a try. Some of the power features like creating your own actions and using automation require a subscription price of $1.99 a month or $19.99 a year.

This is the Edit Action screen. Actions are highly customizable. This particular action a) saves meeting notes to Evernote, b) saves tasks begining with "@" to my OmniFocus task app, and c) emails the notes to others in attendance.

I have always treated Drafts as a starting point for text. Interestingly, the new version has added some features that encourage using it as a note app replacement. You can now tag notes, create lists with checkable boxes, and even create custom workspaces that you organize your text into (paid feature). I am not sure if using Drafts this way is for me, but here are some ways I have been experimenting with it…

Processing Text

I have a "default" workspace depicted by the blue star icon below. Navigating workspaces is as easy as tapping custom icons in the lower left. My default workspace is where all of my unprocessed notes go. These generate a badge that appears on the icon of the Drafts app so that I don't forget to act upon them later. This workspace resembles the extent to which I was using the previous version of Drafts.

My default workspace. This functions like I used to use Drafts before workspaces became available.

Simple Lists

My next workspace is where I keep active lists of things like recommended movies to see, blog ideas, and even a list of things I do every time I migrate to a new Mac. I can automatically append this list by pressing the "Add to list" action (available here) and then choosing which list to add to. 

My lists workspace.

If a friend recommends a movie to me, I quickly write it in a draft without fiddling around with apps on my phone and getting distracted from conversation. Later, I append it to my movie list in one tap.

Blog Drafts

My next workspace is for blogging. I usually write my blog posts in a third party text editor called Ulysses which means that I usually get started in Drafts and then tap an action that sends the text there. But sometimes I do like to spend a little bit of time in Drafts writing before I take that step. For these types of drafts, I now have a tag called "blog" that allows them to show up separate from my other notes that need to be processed.

Blogging workspace.

Lesson Planning and Note Taking

My last workspace is called Sectionals. My band program has weekly classes for each instrument. Once a week, I see the flutes from my band during one period, the clarinets the next, etc. I do some lesson planning for these sectionals in a note app called Bear. In those same notes I also write down things that happen in the sectionals. Things I assigned, things I assessed, things I said, students absent, instruments I repaired, etc. Fiddling through my notes app to add these notes was getting cumbersome and was distracting me from engaging with my students. So I created a series of sectional related actions that enable me to automate part of this process. The “R1, R2...” actions in the image below are examples of text expansion. Tapping buttons like these expand text that I commonly type. R1 stands for Rotation 1, which I would type if I were taking notes on the first week trumpet sectional for the quarter. The other actions automatically append my sectional notes. For example, tapping SW Trumpet would take my draft and append it to the bottom of that particular note in the Bear note app.

My sectionals workspace. Custom actions can be organized into different groups. This particular one has actions that expand common text that I type in my sectional notes like which weekly rotation we are on. It also contains buttons that take the text and append them to different notes, depending on which instrument group I am in front of.

My sectional note in the Bear note taking app, now appended by Drafts.

As you can see, Drafts is a simple note app with infinite customizability. Check it out today at Get Drafts.

The killer Apple Watch apps for teachers might already exist

This post by Christopher Russel does a great job capturing my feelings about the importance of the Apple Watch in a busy classroom environment.

The surprise Apple Watch feature this week has been a combination of Siri and Alarms. Yes, alarms.

Our Middle School has no bells (other than start of the day and end of the day). We have different schedules all the time. So what I have done is this: at the end of one class, I raise my wrist, say, “Hey Siri, set an Alarm for 10:15” (or whatever the ending time of the next class is).

At 10:15, my watch dings, but more importantly, taps my wrist, and I know that I need to dismiss students.

I cannot overstate the importance of alarms. My school has bells this year and I STILL need alarms to remind me when to let kids pack up in time to be at their next classes. I am usually setting alarms throughout the entire day. In the frantic moments of teaching it absolutely does make a difference to save a few moments asking Siri on my wrist to do it rather than fiddling around with my phone.

The same goes for notifications. I am always on the move at school. And I am able to be attentive to so many things without ever stopping the task at hand. I get notifications from Slack (the messaging service our music department uses to collaborate), iMessage, and important staff emails. This might seem unnecessary, but I love being able to know if one of my colleagues is sending me a troublesome student or if there is going to be a fire drill at a particular time that afternoon without dropping what I am doing. I keep all of my Apple devices on silent or do not disturb mode so I only get notified by the gentle haptic feedback on my wrist. The only exception is when I am sitting in front of my Mac which I also leave in do not disturb mode at work but see the little red badge on various apps to know I need to attend to something. Watch notifications are non intrusive enough that I can easily ignore them. But they are still pretty non intrusive even if I choose to read them. I think the basic clock and notification features of the Apple Watch are so well implemented that they very well may be the "killer apps" everyone is always saying a new and innovative product needs to have. At least they are for me.

That being said, I am curious to see what other kinds of apps can be made when Apple releases watchOS 2 on September 16th. This update is shipping with a native SDK which will allow software developers to make their apps perform a lot faster (all third party apps are garbage slow right now) and take advantage of the hardware of the watch, particularly the digital crown, speakers, and haptic engine. I am desperately awaiting a metronome app for the watch that allows me to change the tempo with the crown and feel the tempo with haptic feedback rather than the speakers.