Under The Microscope

MacOS 15.2 Brings More Audio Bug Fixes

We recommend updating to MacOS 15.2 as soon as you can.

Apple has just shipped their most recent major update to MacOS 15 (Sequoia), with MacOS 15.2. This update once again brings important audio-related bug fixes to the operating system. Those fixes on Apple’s end lead to several improvements when using our products:

  • Muting when capturing audio playing to aggregate and multi-output devices
    When capturing audio that is being played to an aggregate audio device or a multi-output audio device, it will now always correctly mute as requested.

    For: Airfoil Audio Hijack Loopback Piezo SoundSource

  • Voice chat audio no longer doubled
    Another MacOS muting issue has also been sorted by Apple. As a result, using a voice chat application like FaceTime will no longer result in doubled audio while running SoundSource.

    For: SoundSource

  • Capturing from Music.app when it’s streaming via AirPlay
    Changes Apple made in 15.2 make it possible for our apps to capture audio from Music.app even while it’s streaming audio via AirPlay. An update for Piezo is still needed to handle this, and will be released in the near future.

    For: Airfoil Audio Hijack Loopback Piezo SoundSource

  • Muting while capturing from System AirPlay Receiver
    Audio now mutes as expected when capturing from System AirPlay Receiver and other unusual sources.

    For: Airfoil Audio Hijack Loopback SoundSource

  • Audio adjustments of Music.app when streaming via AirPlay
    When streaming from Music.app to local and AirPlay speakers simultaneously, SoundSource’s features like volume control, redirection, and effects will once again apply to audio routed to the Mac’s default output.

    For: SoundSource

Update Now

MacOS 15.2 will provide the best experience when using our apps, so we again strongly recommend updating your Mac now. Of course, we also recommend using the latest versions of our own products. Select Check for Updates from within the app to get those.

Cell-ebrating Ammo the Amoeba

Something something AmMOMA

When I began working at Rogue Amoeba in 2015, the company’s mascot Ammo the Amoeba was front and centre on our website. He served as the logo, and sat in the site navigation at the top of every single page.

The old navigation bar for Rogue Amoeba’s website
Our website circa 2014, featuring a very prominent, and violent, Ammo

The next year, we introduced our more subtle current logo as part of a rebranding and Ammo took a step back from the limelight. Even though he is no longer seen on every page of our site, Ammo hasn’t gone away entirely. As readers of this blog or our mailing list may recognize, he continues to pop up in various forms. He’s also served a role on the 404 error page that appears if you try to visit a page on our site which doesn’t exist.

Over the years, I’ve had fun making many iterations of Ammo:

Ammo playing a guitar
Rockstar Ammo for our 20th anniversary in 2022
Ammy in a witch hat sitrring a cauldron
Spooky Halloween Ammo
Ammo in a hammock
Relaxing in his hammock

Ammo is also alluded to frequently in our documentation, in the form of “Ammo’s <Device>” in documentation screenshots. In fact, I was using the name so much when taking screenshots that I literally just changed the names of my own devices. Now, my main Mac and iPhone are called “Ammo’s Mac” and “Ammo’s Phone”, respectively. That’s only a little ridiculous.

The truly eagle-eyed might even have noticed the appearance of the name “Ammette” in a few spots in our documentation. She’s quite rare, but she has been pictured at least once. You’ll have to find that yourself.

One of my personal favourite forms of Ammo is the real-world plush version created way back in 2005. My gigantic 90-pound Bernese mountain dog Aji usually tears apart dog toys in seconds, with a ferocity matched only by his love of pie. When it comes to Ammo, however, he must understand how much the plushie means to me. Aji gently carries it around like a little baby, slobbery but otherwise unharmed.

Aji the dog with a plush Ammo toy
Aji with his baby ‘Mo’

With Ammo appearing in so many different fun forms, we thought it would be neat to collect as many of them as we could find and put them into a single gallery. That’s now a special exhibition in our Historic Screenshot Archive. To check out all the amoeba-y goodness that is our mascot Ammo, click the priceless works of art below:

Ammo in spoofs of famous art

The Least Likely Ways to Install Rogue Amoeba’s Apps

It’s fun to imagine things.

Here at Rogue Amoeba, we recently completed an overhaul of the first-run experience of our audio capture apps. Until just a few months ago, the process for installing Airfoil, Audio Hijack, Loopback, Piezo, and SoundSource was much more complex than we wanted, due to changes made by Apple in 2020. In fact, our walkthrough document for the process contained 20 discrete steps, which was certainly not ideal.

Luckily, we’ve replaced that difficult first-run experience with a far friendlier setup window, one which needs no separate documentation at all. It’s a huge improvement, keeping our users informed while also maintaining the approachability we want our apps to have.

The new setup window, as seen in SoundSource

This change provides a dramatically improved experience, and we wanted to bring it to the attention of folks who had been scared off by the previous process. But how exciting, really, can you make a permissions window?

I have a little design game I sometimes play when I’m stuck on something. Instead of thinking “What is the best way to do something?” (which is sometimes not that clear) I instead think “What would be the worst way to do this?”. Exploring the negative often helps expose a useful contrast, and it can sometimes lead me to the best way to do something. I decided to apply that little mental exercise to how we’d show off our new and much improved setup experience. As a child of the 80’s, I immediately thought that the worst way to install our software would be via floppy disk —the install medium that existed when I first started using computers. The floppies would of course come in a box, and be purchased in person a retail computer store.

As you can see above, I started by mocking up just the boxes. Soon, though, I got carried away reimagining as many different antiquated installation mediums as I could. This brought some genuine heartfelt nostalgia.

In roughly reverse chronological order, we start with SoundSource on CD-ROM:

Loopback on 3.5” floppy (requiring 25 disks):

Audio Hijack on 5.25” floppy (requiring 181 disks):

Airfoil on cassette:

And most silly of all was Piezo on about 150,000 punch cards:

I really enjoyed rendering each of these retro mediums in detail. Each was painstakingly hand-rendered as a 2D vector-based image. The stickers, boxes, and labels were first rendered out into flattened image files, and then passed through a halftone pattern filter to create a genuine printed look, before being brought back into my vector drawing app. It can be hard to see this detail from images used on social media, so here’s a zoomed-in view of the SoundSource CD:

As lovably retro as these installation mediums would be, they certainly wouldn’t be convenient. I’m grateful that the new much-simplified setup window is paired with incredibly simple download buttons on our site.

Update to MacOS 15.1 for Helpful Audio Bug Fixes

We recommend updating your Mac to MacOS 15.1 as soon as you can.

On Monday, Apple shipped the first major update to MacOS 15 (Sequoia). In addition to the premiere of Apple Intelligence, MacOS 15.1 includes important audio-related bug fixes. Here’s a look at several improvements you can expect to find with our products once you’ve updated to MacOS 15.1:

  • Capture from iPhone Mirroring
    Capturing audio from Apple’s new “iPhone Mirroring” application now works as expected.

    For: Airfoil Audio Hijack Loopback Piezo SoundSource

  • Capture of audio from command-line interface (CLI) tools
    Audio capture from command-line processes now works as expected. Whether you’re targeting the Terminal for a process like `mpv` or `say` or an app that uses a command-line utility under the hood, audio will once again be correctly captured

    For: Airfoil Audio Hijack Loopback Piezo SoundSource

  • Correct muting with System-Wide Audio captures
    After a System-Wide Audio capture has been initiated, apps launched will now always be properly muted.

    For: Airfoil Audio Hijack

  • Greatly reduced CPU usage
    Thanks to fixes in the Mac’s “CoreAudio” system, SoundSource now uses minimal processing power when no applications are playing audio.

    For: SoundSource

  • Improvements for apps running in exclusive (“hog”) mode
    Previously, if an app was hogging an audio device, attempting to work with it could cause all audio capture to fail. That is no longer the case.

    For: SoundSource

Update Now

We have long advised taking it slow when upgrading to a major new version of MacOS (from MacOS 14 to MacOS 15, for instance). In the case of this smaller update from MacOS 15.0 to MacOS 15.1, though, we heartily recommend updating your Mac now. As always, we also recommend using the latest versions of our own products. Select Check for Updates from within the app to get those.

The Latest SoundSource Brings Two Major Advances

SoundSource is now much simpler to install and it supports MacOS 15 (Sequoia).

We’ve recently updated our sound control utility SoundSource, and it’s a big leap forward. On top of a wealth of assorted improvements and bug fixes, there are two notable advances.

First, SoundSource is now dramatically simpler to install on your Mac. There’s no longer any need to adjust startup security settings, nor even restart your Mac a single time. You can get started in seconds.

Second, SoundSource has support for MacOS 15 (Sequoia). If you’ve already updated your Mac to Sequoia, you can now run SoundSource on it.

You can download the latest right from the SoundSource product page. For more details about this update, read on.

Simplified Setup

SoundSource is now powered by our next-generation audio capture backend, “ARK”. Thanks to ARK, you can start using SoundSource in under a minute, with a new, streamlined setup process.

When you launch SoundSource on MacOS 14.5 and higher1, the app will walk you through the necessary setup. With a few clicks, you’ll install the ARK plugin, grant the necessary permissions, and be up and running.

This change is the result of many months of development, as extensive work was required to overhaul the app’s backend. Despite those huge changes under the hood, we worked diligently to ensure existing users experience minimal changes in functionality. SoundSource remains the most powerful utility for audio adjustment on your Mac, and now, getting started with it is a snap.

Update SoundSource Now

If you’re already a SoundSource user, all you need to do is choose Check for Updates from the SoundSource menu to update to the latest version for your system.

If you’re not currently using SoundSource, visit the product page to learn more and download the free trial. It’s never been so easy to take control of all the audio on your Mac.


Footnotes:

  1. The new audio capture backend requires MacOS 14.5 or higher, so SoundSource currently has two variants, with nearly identical functionality. On MacOS 14.5 and up, SoundSource 5.7.1 is the current version, while MacOS 14.4.1 and lower uses SoundSource 5.6.4.

    You don’t have to worry about that, however. All you have to do is download, and SoundSource will take care of making sure you have the right variant for your Mac. ↩︎