Listen to one track, while recording a second just by itself?

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steve
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Re: Listen to one track, while recording a second just by itself?

Post by steve » Mon Feb 24, 2020 9:54 pm

sridharar wrote:
Mon Feb 24, 2020 9:39 pm
IT ALWAYS OVERDUBS.
We need to speak the same language.
What exactly do you mean? Do you mean that the original track is being mixed in on the same track as the new recording? If so, then that's probably just a wrong setting, but I don't want to make too many suggestions in case that is not what you mean.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

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Re: Listen to one track, while recording a second just by itself?

Post by sridharar » Tue Feb 25, 2020 4:20 am

Steve

Thanks for responding again.

Let me make it clearer by elaborating.

I am on Windows 10 Laptop.
I have a speaker connected to headphone out of the laptop.

In my Audacity Project, I start with two tracks

Track A: I have a Tanpura Drone
Track B: I have a Tabla Rhythm

On Track C I want to record a Song I am playing on my iPad instrument and feeding into
Audacity via Line In.

I want to hear Track A and Track B playing while I am recording my song on Track C.
But I do not want Track A and Track B audio to get recorded into Track C.

I just cannot get this to happen. The preference setting I am using is:

the preferences->recording-> Play Other Track While Recording (Overdub)

This seems to imply that Overdub will happen if Playing while recording is enabled.

How to get Playing without Overdubbing is my question.

Thanks Sri.

P.S. This gives me the freedom to mix the tracks differently as needed, while exporting the song

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Re: Listen to one track, while recording a second just by itself?

Post by kozikowski » Tue Feb 25, 2020 9:24 am

That is I do not want OVERDUBBING
What you have isn't overdubbing. Overdubbing plays a clean backing track (typically drums or rhythm) into your headphones and records your voice clean, by itself on its own track.

What you have is a routing error, and it's pretty common for people who like recording YouTube or internet sound.

We just need to find out where your error is. I need to drop for a while.

Koz

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Re: Listen to one track, while recording a second just by itself?

Post by LivingInternet » Tue Feb 25, 2020 12:56 pm

Hi folks, as the original poster, this conversation has been fascinating!

Fwiw, I set Audacity up as described in the first three posts.

I set the "Speakers" to my headphones. I put on my headphones, one ear on and the other off so I could still hear my voice.

I set the "Microphone" to my USB microphone.

I pressed Record, listened to the first track on my headphones, spoke into my microphone.

The recording did not have any of the first track on it, only what I entered with the microphone.

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Re: Listen to one track, while recording a second just by itself?

Post by steve » Tue Feb 25, 2020 1:42 pm

sridharar wrote:
Tue Feb 25, 2020 4:20 am
I want to hear Track A and Track B playing while I am recording my song on Track C.
But I do not want Track A and Track B audio to get recorded into Track C.
That is what is meant by the term: "overdubbing".
sridharar wrote:
Tue Feb 25, 2020 4:20 am
preferences->recording-> Play Other Track While Recording (Overdub)
That needs to be enabled.
You can also access it via:
"Transport menu > Transport options > Overdub" (should be ticked).

The option below it must be off (not ticked):
"Transport menu > Transport options > Software playthrough" (NOT ticked).

sridharar wrote:
Tue Feb 25, 2020 4:20 am
I am playing on my iPad instrument and feeding into
Audacity via Line In.
So in the "Device Toolbar" (https://manual.audacityteam.org/man/device_toolbar.html) set:
host = MME
Recording input = Line In.


There may be a problem with this setup.
How are you expecting to hear your iPad instrument while you play it? If the sound is routed through the computer, there will be a noticeable delay.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

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Re: Listen to one track, while recording a second just by itself?

Post by sridharar » Tue Feb 25, 2020 3:50 pm

Steve/All

Thanks for all your attention/help.

There is something I am missing or amiss and I do not know what it is.

The new track I recorded includes the audio of the other tracks -- I do not want that.
I am avoiding the use of "Over dubbing" just to avoid confusion.

Yes I have disabled software playthrough.

I also checked if by chance Audacity is listening to over the microphone (and not LINE IN) - which could also cause my issue. This is not the case.

So I am doing everything right, per what everyone has said here and based on my own understanding (which is quite in sync). But I cannot get the result I want.

But at least I know now and encouraged that it is not a Audacity limitation - just something wrong in my configuration. Will try to find what the issue is.

regards Sri.

P.S.

As an aside..

I have my iPad feeding the audio IN of my PA600.
So the audio coming out of the keyboard and feeding Audacity has audio of iPad + whatever I play on the keyboard.

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Re: Listen to one track, while recording a second just by itself?

Post by kozikowski » Tue Feb 25, 2020 3:51 pm

one ear on and the other off so I could still hear my voice.
That's one way to do it. The other way is use a microphone or microphone system which will theatrically mix your live voice in real time with the backing track. Note you can't (usually ) use the computer for this. The computer will always give you echoes and latency delay.

This pix is for illustration only. I wouldn't use earbuds for good quality mixing, but that setup does work. No need to skip one earphone.

Image

Koz

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Re: Listen to one track, while recording a second just by itself?

Post by steve » Tue Feb 25, 2020 3:56 pm

sridharar wrote:
Tue Feb 25, 2020 3:50 pm
So the audio coming out of the keyboard and feeding Audacity has audio of iPad + whatever I play on the keyboard.
How do you hear that while playing? Does that have a separate output for monitoring?


If you generate an "Audio device info" file, and post it here, that may help us to see what the problem is.
See: https://manual.audacityteam.org/man/hel ... evice_info
and: viewtopic.php?f=49&t=64936
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Re: Listen to one track, while recording a second just by itself?

Post by kozikowski » Tue Feb 25, 2020 4:02 pm

Also see:

Image

You can't see it, but the headphones are plugged into my UM2 microphone preamplifier (on the left). The UM2 will provide a theatrical mix of live sound and backing track without the backing leaking into the recording.

This picture is also a little Hollywood. When was the last time you saw a recording setup that didn't look like an explosion in a cable factory?

Koz

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Re: Listen to one track, while recording a second just by itself?

Post by sridharar » Thu Feb 27, 2020 5:49 pm

Steve/All

Finally figured out what is going on.

There is a sentence in the documentation of Overdubbing I had missed.

To the effect

".. make sure you are able to hear external input while you are playing some track in Audacity.."

This precondition was not met in the Laptop I was using.

I checked this on a Third Laptop (bit older than the other two) and this condition was met and the issue I was facing vanished.

I am able to listen to tracks while recording a new track. The new track does not have the audio of other tracks.

Hope this is useful for someone else who may run into this issue.

Appreciate your help and your strong insistence that it should work.

Sri.

P.S. Here is a sample to show the result, with no intention of publicizing the video.

https://youtu.be/jLabIda2KEM

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