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Mix to Mono in Screenflow 6

Just updated to Screenflow 6 and I don't see the "mix to mono" button.  I see you can adjust with this weird slider, but not input an absolute value. 

 

 

And then when I have selected multiple audio tracks, I used to be able to mix all to mono at once. Now I can't!

 

 

This is frustrating because my microphone only records one channel and I need to mix all tracks of mono. Since screenflow doesn't have an option to do this when you record like most programs, I need to do it after the fact. Now you have taken this away all together. 

How can I fix this? 

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 6 yrs ago
    • Reported - view

    Chris Meyer do report this using the form. BTW I don't think everyone experiences what you do. My computer audio is recorded as two channels, stereo so there may be configuration related issues that need to be examined.

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  • @Frank Lowney - Silencing would solve a neighbouring problem with SF always recording 2 channels: When you forget to reduce gain on the "non active" channel. I.e. it contains un-necessary noise. We only had that problem in one project of 50 this year – where a teacher recorded to much noise on the other channel.

    But: If you are going for this I believe you should name it following audio conventions: "S" is solo and "M" is mute. So it should be "M".

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  • Matthias Hombauer I believe that Mute in SF acts on the entire track (both channels) and to Solo one track silences the other(s). The effect of soloing is only obvious in the Audio Action view only during audition. Perhaps there should be a little green check mark at the end of the equalizer bar for the soloed channel and a little red x for the silenced channel.

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  • Coming into this late. Trevor's fix works beautifully! But I also found that IF I select the Filter: Remove Background Noise, I get TWO channels. Then I move that slider down as low as it will go. Not sure if this is a better solution than Trevor's but thought I'd ask: Why does selecting this option provide a 2nd duplicated track that fixes the issue? 

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  • It  might help to know how ScreenFlow conditionally responds to various audio inputs. In another thread, I established (by experiment) that mono input (external FW iSight cam/mic) becomes two channel stereo panned hard L and R in ScreenFlow. How and why does that happen?

    It is very difficult to find a USB mic that claims to provide stereo input. Is that because most don't? The only one I know of that makes such a claim is the Blue Yeti. Even with such a claim, there cannot be much separation with a single speaker. True stereo requires separation and that normally means two (or more) mics. Then there's "dual mono" and various "fake" stereo techniques to confound our understanding of the soundscape. So how does ScreenFlow respond to these less than genuine, less than optimal mono and stereo inputs?

    As this and other, similar threads demonstrate, our understanding of ScreenFlow audio recording is confined to "black box" analysis and that's not good enough.

    Telestream could help us all do better by publishing a white paper on audio recording in ScreenFlow that reveals the logic that governs the way that ScreenFlow perceives and then handles the wide variety of possible inputs. This is especially important  now that those inputs can have many more than two channels.

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 6 yrs ago
    • Reported - view

    Andrew Rodney Please describe your source and what ScreenFlow is seeing before you use the Remove Background Noise filter. That shouldn't change the channel config.

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 6 yrs ago
    • Reported - view

    Frank Lowney do ask for such white paper. Now, with the multitrack system and the variety of input possibilities it may clear up things.

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  • @Craig. I'm using a unit given to me called a Alesis i02 with a single mic. In ScreenFlow I see the audio on only one track (Mono) as I saw in the past with all the older versions of ScreenFlow I've used. IF I select the "Remove Background Noise" check box, the audio now appears in 'both tracks' (Stereo). But again, Trevor's suggestion produces the desired results upon Export. I'm just not sure why using that filter does the same and IF with the slider down as low as it can go, what the differences are in the two 'fixes'. 

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 6 yrs ago
    • Reported - view

    Andrew Rodney using the Remove Background Noise filter shouldn't change a single channel to dual channel. Please do report the issue.

    ScreenFlow Support Form

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  • CraigS as far as I'm concerned it's not a bug, it's a feature! As to why it does this, you should ask engineering.

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 6 yrs ago
    • Reported - view

    Andrew Rodney it shouldn't change channels but if you like it certainly don't request the change. It may in the future if they catch it or if someone else reports it.

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  • My microphone records in mono so I need Mix to Mono. I just submitted a feature request asking for it to be brought back. I can't believe they got rid of it in the first place. In the meantime, Camtasia has "Mix to Mono" in case you want to check out Screenflow's competitor.

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 5 yrs ago
    • Reported - view

    Dan Rodney Please understand the developers didn't actually get rid of it. They rewrote the way audio is handled and in order to handle multitrack sources the previous version of mix to mono could not be implemented. What may happen is a new way to do something similar.

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  • OK, so they rewrote the feature instead of getting rid of it. New features may have been added, but Mixing to Mono seems to have got lost. Unless I'm mistaken, there's no simple way to get the same effect in Screenflow 6, right? Forgive me if I missed it in this thread.

    Why do I care so much? Because it's essential for someone (like myself) with a mono mic. It seems like an oversight that wasn't considered. I get it, mistakes happen. I just hope to see the feature come back or I'll need to use another screen recoding app.

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  • Actually Dan, the 'fix' for me worked just fine: Export the video and select the Mono option (radio button). Like you, I only have a mono microphone but doing the export this way produces the necessary fix. It's not intuitive nor very discoverable so I think a better fix would be nice. But it works. 

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 5 yrs ago
    • Reported - view

    Dan Rodney They have to code a new way to do mix to mono because ScreenFlow supports multitrack input now. Mix to mono is specifically two track to one track. You wouldn't see a feature like that on a 16 track mixing board for example. Currently you adjust the pan pots as you would on a multitrack mixer. Obviously that takes a bit of work. They're investigating how they might make this simpler.

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  • Andrew Rodney Fixing in export doesn't help when you have to edit and listen to audio in one ear.

    CraigS  Thanks.

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  • Dan Rodney I have no difficulty editing audio from one channel as one channel and I provided a tip to hear mono on two channels too!

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  • I'd actually prefer it be a preference we set up either on how we want audio handled on recording (dream implementation: enable/disable inputs for a chosen device; decide if we want them merged into a mono or stereo file or broken out into individual mono tracks), or even when we choose what to recording in the Add Recording dialog.

    A secondary solution would be an action to set the pans on a track to center rather than L/R.

    Either way, the extract audio channels command should then mute audio on the segment they were extracted from. I got caught out by the distortion caused when you leave it enabled, and now have doubled-up audio.

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  • The approach I took to this situation was to move away from mono recording toward stereo. This can be done inexpensively simply by purchasing another of the same kind of mic you have (mine is a Samson C012) and setting them up as an aggregate device on your Mac. Because it is impossible to know in advance what your audience is using to play your audio, stereo is the better option in terms of assuring a good audience experience. 

    That said, the panning method described here works and could be made easier to use either with a hard wired button or with scriptability. These options are not available yet but, given the demand for this feature, I will not be surprised to see one or both of them in the near future.

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 5 yrs ago
    • Reported - view

    Chris Meyer very interesting suggestions. Please do make the feature request (use form I posted further up this thread).

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 5 yrs ago
    • Reported - view

    Frank Lowney do, of course, let the developers know your preference or perhaps rank your preferences.

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  • Frank Lowney Stereo is not always a proper choice, nor inexpensive. I have a very good quality $250 Shure mic that is no longer made (so I can't even buy a second). It's mounted on a boom arm to be out of the way, so I can better work on a computer for my recordings. Mounting a second mic would not an option, an talking proximity to both would be a challenge even if it was.

    But the bigger issue with stereo for voice is the possible side to side movement. Mono can be great for voice because it eliminates the need to worry about sound panning distractions.

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    • CraigSModerator
    • Telestream Desktop Forum Moderator
    • CraigS
    • 5 yrs ago
    • Reported - view

    For voice into ScreenFlow I often use a Beyer Dynamic MT88 dynamic mic into an MXL XLR to USB device. ScreenFlow sees is as Mono (a single meter) yet once recorded, plays as dual mono as the pan pot is automatically center panned.

    Single Channel Mono Source (Mic XLR to USB)
     

    Single channel mono source, pan pot is automatically center panned so the mix output is dual mono
     

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  • CraigS, you are a fantastic resource, and very much appreciated. Unfortunately, there are other elements of working with the company that are not as...immediately rewarding, shall we say.

    I'm using the bug report/feature request form to enter some of the issues discussed earlier. Unfortunately, it requires me to enter a lot of information not at my fingertips (including my serial number and support contract number), and it forgets this information each time I enter it - so I have to re-enter it (as well as country, state, and other things not relevant to filing a feature request).

    Additionally, once you file one report/request, it drops you off at a page that lacks any obvious link to go back and file another report or request.

    Both discourage is from entering multiple bug reports or feature requests - which may cut down on the support burden in the short term, but which seems like bad planning in the long term.

    Could the web programmers at least add cookies to this page so we don't have to keep re-entering all this info every time we're trying to help out by filing requests?

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