Introducing aCapture — Multi-Source Audio Recording for macOS

By kaillewaille, 14 March, 2026

Forum
macOS and Mac Apps

Hi everyone,

Some of you may already know app-suite.eu through agram or aScan. I'm happy to introduce the latest addition: aCapture, a menu bar utility for macOS that lets you record audio from multiple sources simultaneously — apps, system audio, microphones, audio interfaces, and even an iPhone or iPad over USB.

Why I built this

As a blind developer and podcast hobbyist, I got frustrated with the state of audio recording on macOS. Most tools require visual-heavy setups with virtual audio devices, complex routing, or interfaces that simply don't work with VoiceOver. I wanted something I could operate entirely from the keyboard — pick your sources, hit a shortcut, and record.

What it does

  • Record any number of apps at once, each to its own file or mixed into one
  • Capture system audio, VoiceOver speech (with live toggle), multiple USB mics, and audio interface inputs
  • Real-time audio mixer with per-source gain and VU metering
  • Soundboard with 8 trigger pads and keyboard shortcuts
  • AI transcription running entirely on-device — with speaker diarization and VTT/SRT export
  • Session presets to save and restore your entire setup
  • Drop markers during recording for quick navigation in post-production
  • Export to M4A, WAV, or MP3
  • Pro tier adds: live streaming to Icecast, RTMP, and Twitch with full chat integration, real-time stats, auto-reconnect, and video broadcasting

Accessibility

This is the part I care about most. Like agram and aScan, aCapture was designed for VoiceOver from day one — not retrofitted after the fact:

  • Every control, toggle, and state change is announced
  • Audio tones confirm recording start/stop and VoiceOver capture toggle (different pitches so you always know which event just happened)
  • Global hotkeys: Control+Shift+Command+R to record, +C for config, +V to toggle VoiceOver capture mid-recording
  • The entire interface is navigable with the keyboard — no mouse needed, ever
  • VoiceOver capture can be toggled during recording without stopping, so you can choose whether screen reader output ends up in your files

Pricing

  • 14-day free trial, all features unlocked, no credit card
  • Standard: €19.99 one-time (recording, mixer, soundboard, transcription, presets, markers)
  • Pro: €34.99 one-time (adds streaming, Twitch, and video)
  • Standard owners can upgrade to Pro for €15

Requires macOS 14 Sonoma or later. Available at https://app-suite.eu/acapture

I use aCapture daily and I'm actively developing it, so I'd genuinely love your feedback — what works, what doesn't, what's missing. If you run into any VoiceOver issues, that's a bug, not a limitation, and I'll fix it.

Want to know more and start your free trial? head to the official site

Happy to answer any questions here.

Yannick

Options

Comments

By João Santos on Saturday, March 14, 2026 - 21:27

I've been procrastinating on building something like this myself, but for the audio routing only, because I personally think it's best to make multiple tools that only do one thing well over making a bloated single tool that hardly integrates with anything else. I do have the lower level components of a Swift abstraction library over CoreAudio already written, but have been really busy with real life lately so have been postponing writing the high level components and publishing the library for quite some time now, and my final goal was to make the routed output available as a virtual audio driver that any application could record from thus seamlessly integrating it with people's existing workflows.

In my case I'm only interested in recording from multiple audio sources including tapping into the full system audio output to the default output device, so this is overkill for me, but if it ends up implementing the functionality that I expect properly, I'll be happy to pay for the standard tier.

By João Santos on Saturday, March 14, 2026 - 21:35

Two questions that popped in my head while browsing the product page and are not in the FAQ are:

  1. Why isn't this on the App Store?
  2. What's the payment method?

By Raymond Gay on Sunday, March 15, 2026 - 02:15

Thank you for taking the time to develop this app. I have really enjoyed exploring what it can do so far.
I do have a few possible feature requests. One would be the ability to use the camera as a video source alongside whatever audio is being played. Another would be built in support for streaming directly to YouTube, including the ability to interact with the live chat.
I understand that streaming can be configured through RTMP, but since programs like OBS allow you to sign directly into your YouTube account and set up a stream that way, I wondered if something similar might be possible here.
I also have one question. Is audio ducking supported?
In a lot of ways, I would love to see something like this become an accessible alternative to OBS on the Mac. It would also be great if there were a way to integrate built in macOS audio tools or plug ins so effects could be added to music or overall sound, similar to what apps like Audio Hijack already do.
I would also like to note something about the transcript feature. When I tried using it to transcribe a couple of files, the app completely crashed. I do recognize that this may have been my fault, since one of the files included music, so it may not have been able to handle that while attempting the transcription. The dynamics option in the mixer what does this do?
Thanks for reading.

By kaillewaille on Sunday, March 15, 2026 - 08:22

Hi,

Thanks for the questions. The app is not available for the Mac App-Store to be able to maintain low prices and avoid the 15% (and then 30%) fees Apple charges for each transaction. The app is, like every other App-Suite applications, distributed on the website, and uses a well-established platform to handle payments called LemonSqueezy.

As for the supported payment methods, it ends up being the exact methods LemonSqueezy supports, i.e. credit cards, Apple Pay, Google Pay, PayPal, and some others.

Best,

By kaillewaille on Sunday, March 15, 2026 - 08:27

Hi,

Streaming to Youtube is indeed a good suggestion, and I'll look for how to do that properly for a future release.
As for the camera capture, that's indeed also a good suggestion, but I have to think about some way of how to do things. Questions that need answering before any implementation is mainly how to let users position the captured camera window compared to other windows? Would it be a full screen face-cam capture only? If not, where to position the camera window on the virtual capture screen to let viewers see the rest of the screen and not hide information by the camera window?

When I find a good trade-off for those questions, I'll certainly implement such a feature.

Best

By Johann on Sunday, March 15, 2026 - 09:45

If I'm already using Audio Hijack, does this do something better in your opinion that that program can't already do?

By kaillewaille on Sunday, March 15, 2026 - 10:01

Hi,

Some of you asked some questions about where aCapture stands compared to the well-established (and very good) Audio Hijack. Short answer is, if you already own it, aCapture won't be of much help for you as Audio Hijack already recordds audio with tones of features aCapture won't have for now, such as integration AudioUnits / VSTs into the pipeline.

Where aCapture can help you though, is when you simply want a simple software to capture audio of one or several apps on your mac, without the need to create / arrange blocks to have audio recorded. With aCapture, you start the app, select the sources you want to record, and press a shortcut, and that's it.

In addition, here are some features that, I think, would be in favor of aCapture:

  • VoiceOver record on the fly: with cmd+ctrl+shift+v, turn on VoiceOver capture (on/off) at any time, to have a clean recording. If you turn it on, off, and then on and off again, the final audio is created with one long file, with some silence appended/prepended when needed.
  • Simpler interface: in my humble opinion, simpler to just select sources rather than building blocks and wiring them appropriately (and I'm a big fan of Loopback however).
  • Podcasting: With aCapture you can very simply record, transcribe, and generate podcast show notes within a single application (I'm not sure Audio Hijack can do that)?
  • Video streaming: Unless you want complex (and partially broken on Mac) software like OBS, aCapture lets you stream your content to an online radio (Icecast), and even video on a RTMP-compatible server or Twitch without efforts. The Twitch support has been tailored to support stream updates (title, genre, tags, etc), and to provide a very easy and quick access to the Twitch chat using a single shortcut.

That's , for now, the features aCapture provides that may be of interest for people who either don't need a more complex software like Audio Hijack, or need audio transcribe / streaming in a single application.

By Leonardo Lemos on Sunday, March 15, 2026 - 22:38

Hello!

First of all, I would like to congratulate you on your excellent work developing your applications. They seem very interesting and useful.

I would like to make a request: would it be possible to make your applications available in Brazilian Portuguese? I believe this would greatly expand your reach in the Brazilian market, making the app more accessible to many people.

In my specific case, I would be very interested in purchasing your applications as soon as they are available in Brazilian Portuguese, as this would make daily use much easier for me.

I look forward to your response and hope this implementation will be possible.

Thank you for your attention!

By JC on Monday, March 16, 2026 - 00:42

Hi, this app sounds good. I may give it a try. however, I have a few questions:
1. You said that there is a free 14 day trial available so what happens after the trial ends? Can you still use the recording and capturing functionalities for free? I know that with apps such as reaper which is available for macOS after the 60 day evaluation ends, you are still able to use it, but it will constantly ask you to purchase a license to support the developer. Can you make it so that when the 14 day evaluation ends you are still able to make the basic features such as recording with system audio and microphone free, while locking the other features such as streaming and sound effects disabled until purchase? for me, I'm only into basic recording, not so much into streaming and/or sound effects.
and 2. What format or formats does the recording output to?

By kaillewaille on Monday, March 16, 2026 - 06:10

Hi,

Thanks for your comment. That's something that can be (and will be) implemented for the next aCapture release with a few more features. I'll post it here when it's available. Thanks for the great suggestion!

By kaillewaille on Monday, March 16, 2026 - 06:15

Hi,

aCapture lets you record in Wave, M4A, and MP3 formats.

As for the end-of-trial behavior, when reached the app will ask you to purchase a license to be able to continue using it.

By Johann on Monday, March 16, 2026 - 07:47

Can you please add flac support?

By kaillewaille on Monday, March 16, 2026 - 08:12

Hi,

I'll see how I can add this, should not be very hard to do though.

By kaillewaille on Monday, March 16, 2026 - 10:02

Hi everyone,

aCapture 1.2.0 is now available. Here's what's new:

Apple Neural Engine Transcription

Transcription now uses Apple's built-in speech recognition by default — no large model download required. It runs entirely on-device using the Neural Engine and lets you choose the transcription language (French, English, German, Spanish, Italian, Portuguese). The previous Parakeet engine is still available as an alternative in Preferences > AI.

Video Recording

You can now record video alongside your audio captures. Three capture modes are available: full screen, a specific application (all its windows or just one), or an image gallery. The video is saved as an MP4 file with a real-time mix of all your active audio sources. This is great for creating tutorials or screen recordings with multi-source audio. Video recording is available to all users — no Pro license needed.

FLAC Recording Format

Lossless FLAC is now available as a recording format alongside M4A, WAV, and MP3. Perfect if you want studio-quality recordings without any compression.

Built-in Microphone Improvement

The compressor and limiter are now enabled by default for the MacBook's built-in microphone. This reduces peak levels automatically, resulting in more natural-sounding recordings without clipping — especially useful if you don't have an external mic.

Other Improvements

  • The app now checks for updates every 24 hours instead of only at launch.
  • Video settings are now in the main popover, easier to find and fully accessible with VoiceOver.
  • Each streaming destination (RTMP, Twitch) can now have its own video resolution, frame rate, and bitrate.

You can download it from the official website orlook for the update button in the app main window (you may have to relaunch it to see the update available button).

Feedback welcome as always!

By JC on Monday, March 16, 2026 - 13:25

Hi,

I have more questions. first, thanks for adding support for video recording and flack. I live in the US and the prices that shown it comes out in EU. Most apps require you to sign in with an account in order to continue purchase. Other sites like Rogue Amoeba allows you to purchase a license directly without signing in. Is that the same on your end? Can I purchase a license directly from the app or directly from the website? And will it accept US currencies?

By kaillewaille on Monday, March 16, 2026 - 13:28

Hi,

The purchase is done directly within the app. It's processed by a dedicated platform called LemonSqueezy, which allows you to pay with your favorite way (apple pay, paypal, etc). Prices are indicated ex-VAT , and LemonSqueezy handles all the VAT computations for you (and for me) as well as some currency conversions if needed.

By JC on Monday, March 16, 2026 - 13:49

OK thanks! I'll see if I can give the app a try before I make my purchase. I'll probably go with standard, since I don't do streaming. also, this app is like the windows version of virtual recorder.

By John Lipsey on Monday, March 16, 2026 - 16:39

I've created many devices in loopback so I can record output of various devices to Amadeus Pro. I also use these Loopback devices to stream to discord, teamtalk, etc.
Can I set up devices in your app that Discord and Teamtalk can use as audio devices? I could just record with your app instead of Amadeus, and that might be easier in some ways.

By kaillewaille on Monday, March 16, 2026 - 16:49

Hi,

Yes this is completely possible. In aCapture in the mics section, you can add as many "mic sources" as wanted. Each source is a mono or stereo device like Loopback's virtual devices, or many mono/stereo pairs from an external sound card. For example, when I plug my Scarlet 18i8 to the Mac, Acapture shows me a menu item Scarlet 18i8, with: - a Mono submenu with all the 8 available entries. - a Stereo submenu with all the available pairs.

Hope that helps, feel free to start a trial: aCapture does not install any driver, so it won't conflict with Loopback's setup in any way.

By JC on Monday, March 16, 2026 - 22:04

Hi,

that's cool! when I pressed vo space on the start free tryal, it ask for email address. why is this needed? and is this optional. there is also a restore purchase button that does restore the lisence purchase if you have already purchased one. I may end up trying it and scip using rogue amoebas products as well, as loopback is expensive. while there is another free option called blackhole, that, too, requires additional setup. this one, not so much.

By JC on Tuesday, March 17, 2026 - 01:20

Hi,

I have just downloaded the app,and I have began the free 14 day trial, and I have some thoughts. first, recording is awesome! you can select various sources, even capture both system audio, voiceover, and your microphone at the same time. however, when connected over bluetooth, when starting a recording, the recording pitches up and then goes back to normal pitch. Why is that? Also, when I select MP3 as a file format, it saves the file as.CAF instead of.MP3. What happened there? The other formats such as flack, WAV, and M4 a save just fine. Overall, awesome app. What I would like to see in the next update is a hot key to enable/disable input monitoring as when you start recording if you're not using headphones you're able to hear feedback while you are recording. This can be very useful, as disabling it will prevent feedback overload when using either sources..

By kaillewaille on Tuesday, March 17, 2026 - 08:13

Hi JC,

Input monitoring is already supported in the app.

As for the license questions: - email required: yes, to be able to identify you as a user. It is currently not used in any ways, and the only emails you may receive from app-suite would be related to your licenses, and/or for support enquiries. - restore license: If you registered your mac already and deleted the application, you can restore the license you purchased.

As for Blackhole and Loopback comparisons, those are different products that dont serve the same purposes as aCapture. It's up to you to try them (all have trial periods), and decide what's best for your needs.

By kaillewaille on Tuesday, March 17, 2026 - 08:16

Hi JC

What you describe seems to be bugs.
I'll investigate and provide a fix for the next release: the MP3 <> CAFF issue is a small one, but recording using Bluetooth may be a bigger issue which relates to source's sync and bluetooth audio receiving.

By JC on Tuesday, March 17, 2026 - 13:21

Hi,

thanks for answering my questions. After playing with the app some more, I found out that when you record without Bluetooth connected, it seems to be working normally. however, when you record with Bluetooth connected, there is a small delay when you record and that's when the pitch goes up and back down when you playback the recording. When Bluetooth is not connected it works normally. Also, I live in the US, so the money I'm paying for a standard license in US is $22.00? correct me if I'm wrong. Also, on the purchase screen, when you hit continue, what happens next. are you ask to select a payment option? as I have said before, I live in the US, and the price is shown in EU currency, rather than US currency.

By JC on Wednesday, March 18, 2026 - 02:37

Hi,

I have some more thoughts. I enjoyed the tones that are used to toggle voiceover audio on/off, as well as recording start/stop. what I would like to see is a toggle to enable/disable transcription. I know the transcription is on by default, but let's say if I'm doing an audio only podcast without transcription. I mean yes transcription is great, but I would love to have a toggle in the main interface where pressing it will disable transcript and then pressing it again will enable it. The same goes for input monitoring. I know you said that input monitoring is on by default, but let's say you are doing a podcast for instance and you are using headphones and or the internal speaker. Pressing one keystroke will disable input monitoring, while pressing it again will toggle it back on or if you quit the app and open it up it should be enabled again. The keystroke for that could be in this case command plus control plus shift plus I, while the transcript toggle could be control plus command plus shift plus T..

By JC on Wednesday, March 18, 2026 - 19:11

Hi,

I just did a test recording using the internal microphone and system audio and voiceover captured but when I speak into the microphone while input monitoring is active there is a bit of a small latency when you use standard wired earphones. Is this normal? In other apps like Logic Pro, the latency is improved and you get the audio captured right away with no lag. same gos for other audio recording apps such as Amadeus Pro and Reaper.

By Ramy on Thursday, March 19, 2026 - 00:09

THanks for your great work.
now, need to ask, if it will record just the video from external camera? or it can take screen share also?
i mean can i make a video with both my camera and a screen share?

By kaillewaille on Thursday, March 19, 2026 - 13:53

Hi everyone,

aCapture will bring new video capabilities in the next version: - ability to record from cameras as well as the screen / applications. - Brand new scene editor to create scenes like in OBS Studio, but of course in an accessible way. - Some added shortcuts to quickly toggle monitoring on or off, switch scenes, trigger soundboard pads using a global shortcut per pad, and more. - Cleaner UI: Adding features is cool, but it's better when you can hide feature you don't use. - and of course some fixes in video capture, audio resampling, and more.

Stay tuned for the update :)

By JC on Friday, March 20, 2026 - 00:36

Nice! I'm looking forward in playing with the update whenever it becomes availble. question: how can I hide a feature in the latest update if I don't want to use it for example video recording in either full screen, app, or image gallery? And what audio improvements have you made?

By kaillewaille on Thursday, March 26, 2026 - 17:49

aCapture 1.3.0 — Advanced Scene Editor, Zero-Latency Monitoring, and Ducking

Hi everyone,

aCapture 1.3.0 is a major update focused on giving you more control over your audio and video captures. Here's what's new.

Advanced Mode with Scene Editor

You can now create multi-source scenes with a visual grid editor. Each scene can contain any combination of app windows, cameras, displays, text overlays, images, gradients, and audio sources (microphones, app audio, system audio, VoiceOver, iPhone).

Switch between scenes during recording or streaming with customizable keyboard shortcuts. Transitions include cut, fade, slide, zoom, and wipe, each with a configurable duration. Only the sources in the active scene are recorded — other tracks are padded with silence so all files stay aligned and ready for editing.

The Classic mode remains available for quick, simple captures.

Zero-Latency Audio Monitoring

When you select an app to capture, its audio is immediately routed to your headphones through a dedicated monitoring path with approximately 2.7 milliseconds of latency. You can adjust the gain of each source in the mixer and hear the change instantly. The monitoring stays active during recording — no interruption.

Mixer Improvements

The mixer now supports full keyboard navigation:

  • Up/Down arrows to select a source
  • Left/Right arrows to adjust gain
  • M to mute/unmute
  • D for dynamics (compressor/limiter)
  • G for noise gate
  • I for monitoring toggle (mic sources)
  • R to reset gain to 0 dB
  • K to toggle ducking

VoiceOver announces the source name and whether it's active in the current scene. The mixer window title shows the active scene name in Advanced mode.

Ducking

A new global Ducking feature automatically lowers the volume of non-microphone sources when you speak, and brings them back up when you stop. Toggle it with the DUCK button in the mixer or with the keyboard shortcut Ctrl+Shift+Cmd+D. This is especially useful for commentary over music or application audio.

Phone and FaceTime Call Capture

When capturing Phone or FaceTime, aCapture now automatically detects and captures the actual call audio, not just the app's UI sounds.

Other Improvements

  • Collapsible UI sections (Sources, Video & Scenes, Tools, Output) keep the popover compact
  • Gradient source with 7 directions including radial
  • Grid sizes up to 6x6 for detailed layouts
  • Scene describe button reads the composition aloud
  • Robust scene persistence — updates never lose your scenes
  • Translations updated for French, English, German, Spanish, Italian, Portuguese, and Polish

aCapture 1.3.0 requires macOS 14.2 or later for the new audio monitoring features. The classic capture mode works on all supported macOS versions.

Download: acapture

As always, feedback is welcome. Let me know how these features work for you.

By JC on Friday, March 27, 2026 - 01:13

Awesome update! question: the video and the scenes you mentioned, is it availabel for all users, or only for pro users. also, after I play back an audio recording captured, the recording is buffered, and the audio is played in a higher pitch. before, it played in normal pitch.

By kaillewaille on Friday, March 27, 2026 - 06:33

Hi,

The scene features are available with the pro version only. The standard will let you record everything in classic mode.
Regarding the pitch, I've sent you an email to gather some more details

By kaillewaille on Friday, March 27, 2026 - 06:47

Hi everyone,

As you may have noticed, the update from yesturday is not a light one.
To let you discover it with no time pressure, I decided to extend all trial licenses that were due to expire in less than 7 days to april 5th, so that you can test this version in a more confortable way.
Happy capturing!

By Matt T on Friday, March 27, 2026 - 14:11

Just grabbed the update.
I've noticed, that when I use reaper, or Logic pro, and I try to monitor them, no sound can be heard.
As soon as I quit aCapture, the sound of reaper, or logic comes back.

By TheOreoMonster on Sunday, March 29, 2026 - 21:00

It appears that in classic mode its not recording at least one source. Also sources are not being recorded to their matching file names. Case in point the file named for Logic has VoiceOver on it, the File named for VoiceOver will be blank and Logic won't be captured. I have tried this. a few times and with 3 apps as well and was still missing one source of audio in the individual files and in the Video recording as well.
The mixer key commands doesn't seem to work other than the one to duck. The only way i can reliably navigate the mixer is via VO left/Right other wise If i go to a source like my microphone and down arrow it adjust the gain, if I VO Down it moves to the last source. I can only see the other sources if i VO left/Right until I get to another source.
Input button next to the microphone doesn't seem to change its state like mute, noise gate, dynamics and Duck does.
Could it be possible in the future to allow it to duck when VoiceOver is speaking as well and not just the microphone sources.
Any documentation on how to use the scenes available? I am familiar with OBS so I'll have a play and see if i can work it out but figured I'd ask regarding documentation..

By JC on Monday, March 30, 2026 - 01:52

Hi,

Same here. it use to capture both system audio and mic, but not anymore. now it only captures mic. also, VoiceOver volume goes low when it's enabled, and goes to normal volume when it's disabled. mixer commands still work fine on my end.