Camtasia:Mac Recording Stereo System Audio to Mono

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  • Updated 5 months ago
Yes, the mono audio recording seems to playback on both left & right channels, but yet it is indeed a mono signal.

I've looked for settings that let me change anything related, and the only thing I found was a property setting in the editor to force stereo to be rendered as mono.

It seems like this kind of basic aspect would not be an issue at all.

Any ideas?
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brucerothwell

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Posted 5 years ago

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brucerothwell

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Bump.

I cannot get system audio to record in stereo.  Is this a bug, or is it just designed in lack this way?
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Robert R., Online Community Admin

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Hello, Bruce;

When you are playing back the recording is it only playing out of one channel? If you use the Mix to Mono option do you hear it out of both channels?
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brucerothwell

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It is mono, in both speakers. It seems that is caused by using an external audio device -- because I get a stereo recording I'd I use the built-in audio device.

I had been told this was an issue 2 or 3 years ago now... does Trchsmith actually think people that work in pro audio don't ever want to capture audio properly when using Camdasia?

My only recourse then. and still, it seems, is to use another tool for the capture.

I thought Techsmith would have taken the time to fix this by now.
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Omar Cabral

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what else do you use to capture that's similar to camtasia for mac?
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brucerothwell

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Sorry it took so long to answer -- I just noticed this question.

Oddly, Jing had worked with capturing stereo audio from an external source IN THE PAST, but now it seems to not captured system audio at all.

As others have mentioned, ScreenFlow works.
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brucerothwell

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Bump.

Anyone at Techsmith even looking at this?

It seems that it is the system audio driver that comes with Camtasia:Mac that is the problem, as it will not capture an external sound device in stereo.

This is so frustrating, as I really want to use Camtasia to record stereo audio coming from Pro Tools, and a mic that is also plugged into my external sound device.

Also, if the Camtasia:Mac system audio tool would let you select the audio stream you want to record (like with the mic tool), that would be best.
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Stephen Ellestad

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Why has there been no fix for this?  I've been using Camtasia for Mac to record music production tutorials but just realized recently that my stereo input is being converted to mono  when captured by camtasia.  Absolutely unacceptable, especially given that this is a longtime known issue here and several update releases have come and gone with nary a peep on this issue here.

I will unfortunately be switching to Screenflow immediately, as this is a deal breaker for me with the platform and my professional requirements.  It's a shame, because I've been wholeheartedly pushing Camtasia as a platform to colleagues for a while.  Looks like I have some crow to eat.
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brucerothwell

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Stephan,

I have developed a workaround for this, which makes use of a free tool that functions as a desktop mixer of multiple sources, which allows Camtasia to record external stereo audio + mic into the Recorder's "mic" input, and not using the Recorder's system audio input at all.

Uses the following apps:

Ladiocast:
a free mixer/streaming app available on the Mac App store

iShowU audio capture driver:
this is the "source" you would use in the Camtasia recorder
https://support.shinywhitebox.com/hc/en-us/articles/204161459-Installing-iShowU-Audio-Capture
(this page implies this driver only works with certain iShowU products, but I found it works by itself also)

Here is a pic of the Ladiocast mixer:



In that example, Input 1 is my external Sonic Solutions Model 302 Firewire interface.
Input 2 is the mic in my webcam.
Notice how each is mixed, into the Main output.
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stephen

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Thanks for this info. Unfortunately I already have multiple routing options in place between my analog console and DAC, plus aggregate devices via Pro Tools and Soundflower . I'm not comfortable adding another routing setup into this mix as this is a full time recording studio and I can't risk compromising an already working system because the developers don't understand the basic requirements of pro audio end users. Regardless, thank you again and good luck to you.
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David Cheng, Developer on Camtasia:mac

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We designed the Camtasia system audio capture to capture all output devices simultaneously and mix them together in a format that makes sense without requiring any configuration from the user.

Unfortunately, it looks like in Stephen's case, the "format that makes sense" that we found is mono ... which is not what you want. My guess is that your output interface has a bunch of mono outputs. If you open up Audio MIDI setup, you can see how the OS sees your output device. My guess is that in all these cases where only mono is being recorded, the OS sees the output device not as a stereo device but as a device with 2 or more discrete channels, thus throwing off our "format that makes sense" calculation.

If we wanted to give more control to the user, we could have to expose controls that answered the following questions:
- What output format do you want? (sounds like you guys just want Stereo)
- Which output device(s) do you want to record?
- Of those output devices, which channels do you want to record?
- Of those channels, which channel to you want them to map to in the output format? For example, on a 24-track output, maybe you would want the 1st track to map to the left channel and the 5th track to map to the right channel

Is this the level of control you guys want?

Bruce: very cool workaround with Ladiocast. I've never heard of that tool before.
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keybounce

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Seriously?

1. Let me select which devices to record! The "record everything" fails badly as soon as any loopback devices get involved. And frankly, with the bleep that is Apple's audio system, loopback devices are required.

2. Record multiple tracks/channels without problem. Imagine the game output going to 0 and 1, the microphone going to 2 and 3, and the output from skype or teamspeak going to 4 and 5. That's three audio channels.

I can import a recording that has game audio on one timeline track, and microphone audio on a second timeline track. I've finally gotten a setup that will let me separate skype audio from game audio so I can actually adjust other people's voices to be heard.

But I can't use that setup inside Camtasia. Iris, which has been my recorder-of-choice so far only does 2 tracks; OBS will do three tracks and I'll be playing with it next.

I can't even call this a new complaint on my part -- I've been told before that this restriction on audio recording was a deliberate design choice. And yes, I would agree that Camtasia is not a professional level recording tool -- I'm not a professional and it's already insufficient for me.

3. And no, forced mono is *never* appropriate. The only thing on my system that should be forced to mono is a single-channel microphone (I want my voice moved from left side to center). Side-relative audio produced by games, musicians, etc., is always important information.
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Pete Marriott

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With all due respect David Cheng , this is HORRIBLE thinking. Stereo capture and output should be a standard, especially when it comes to creating tutorials for music and audio production. Who do I speak to about getting a FULL REFUND? I will switch to screenflow...
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brucerothwell

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David -- to answer your questions:

- Output format?  Stereo Audio
- Output Device?  Whatever is coming thru OSX Core Audio
- Channels to record?  Channels 1 & 2 (typically would be the "main" stereo pair)
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jurij

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Hi David, thanks for the post, as I asked yesterday will be necessary record stereo output from a DAW like StudioOne, Protools etc via externa audio device and mono signal from microphone in 2 different tracks for post production editing. This will make your app "professional" for Pro users. Thanks a lot.
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jurij

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As you do with cam and video screen sources, should be the same for audio in different audio tracks. Just select with channels from the audio core audio interface channels. Ex record audio from input 1 (mic) and internal Daw out associated to out 1-2 or 3-4 of the audio interface.
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jbsound

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I just purchased a license for Camtasia and am running into the same issue. Looks like this is a Camtasia issue and while there is a workaround of sorts that Bruce has figured out (Thanks, Bruce, for putting the effort in!) it is absolutely beyond me how Camtasia is still not giving us a application native solution.
As with many multi-channel audio interfaces, the application is sorely missing the ability to choose which output on the interface to record from. The Mac system audio is set up properly and produces audio in stereo without any issues. The problem is within Camtasia, which collapses the stereo signal from the multi-channel outputs to mono. An absolute deal breaker.

I'm afraid I will be asking for a refund and switching over to Screenflow for the time being.
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stephen

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Yes. I had to switch to Screenflow for the same reason. Even if I set up an aggregate device in Audio /MIDI preferences, it does default to mono collapse, as noted above by both users and the developers. And yes, to address the developer comment above, I'm summing 32 analog console channels, 24 Interface channels and system audio.


I fail to see why a mono collapse would ever be an optimal solution even when dumbing it down for the casual end user. Even in that case, stereo should logically be the default, if for no other reason than the fact that collapsing stereo music tracks can easily compromise stereo field effects through phase cancellation.


I appreciate the user base efforts to develop workarounds. Those are some effective albeit clunky solutions. But the mere fact that this has been an issue for years without being addressed has led me to abandon the platform. Screenflow handles this issue quite easily and is now my platform of choice for my tutorials.


Should the issue be addressed and solved - hopefully with some examination of the end user case studies and in consult with some actual audio engineers - I might reconsider, but I wont be recommending this as a solution until it has been addressed as a free update for existing users.
(Edited)