Volume Discrepancy - help please [SOLVED]

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vvocelli
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Post by vvocelli » March 16th, 2020, 5:45 am

When recording in Audacity using Logitech headphones with a built in mic (I know, not the best, but I'm attempting to get more experience before buying up) the sound starts quieter and then jumps up. Please listen here:

https://librivox.org/uploads/tests/test_vvocelli.mp3

This 1 minute test was approved - meaning my settings are fine, but I can't figure out why the sound ticks up after a few seconds. Any ideas?

Thanks!
Valentina

KevinS
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Post by KevinS » March 16th, 2020, 6:25 am

The increase in volume is so steady that I would almost swear the Fade In effect was used.
What? What's that? Why are you shouting?

ej400
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Post by ej400 » March 16th, 2020, 6:32 am

vvocelli wrote:
March 16th, 2020, 5:45 am
This 1 minute test was approved - meaning my settings are fine, but I can't figure out why the sound ticks up after a few seconds. Any ideas?

Thanks!
Valentina
Sounds like it has a maximum. Once it reaches a certain point does it just not increase anymore? Is so, then before recording maybe have like a warmup? But then again if you are planning to record in dramatic works, this could be difficult to manage...

TriciaG
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Post by TriciaG » March 16th, 2020, 6:32 am

Weird.

If you can't figure it out, and if it's consistently taking about 4 seconds to "warm up", perhaps you could press Record then wait 5-6 seconds before you start getting into the actual recording. Then when you edit, snip out the unneeded few seconds at the front of the audio. :)
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lurcherlover
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Post by lurcherlover » March 16th, 2020, 7:11 am

As Kevin says it does also sound to me like the fade in effect. Are you sure this has not been enabled?

Does it not happen if you wait five or six seconds? Or you could just hum at a set level and see if it does it for the firdt 5 seconds.

It could also be a faulty mic. Have you another mic to borrow or use and see if it still happens? The other possibility is the interface.

Check if on a PC (i.e. Microsoft) that you have nothing set in the relevant options that makes the recording increase in volume of a number of seconds. (I'm no longer a PC user so can't remember the relevant options in the operating system).

vvocelli
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Post by vvocelli » March 17th, 2020, 5:15 pm

Thank you for all the help! I honestly couldn't figure it out. I think it's an "old" computer/slow processor problem. I switched to a newer laptop and no issues at all.

vvocelli
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Post by vvocelli » March 20th, 2020, 7:11 am

ok, so actually. I submitted a read for PL and the PL said that the volume issue was still happening. Is this a product of settings? I'm sitting extremely still and not moving while recording. The only edits I do to the file is noise reduction. I'm using a PC now - can't figure it out!

KevinS
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Post by KevinS » March 20th, 2020, 9:52 am

vvocelli wrote:
March 20th, 2020, 7:11 am
ok, so actually. I submitted a read for PL and the PL said that the volume issue was still happening. Is this a product of settings? I'm sitting extremely still and not moving while recording. The only edits I do to the file is noise reduction. I'm using a PC now - can't figure it out!
I sneaked a listen to your recording and I see that the overall volume is too low. I'm no expert in Audacity, but I think you could use the Compressor effect first and then amplify freely. Perhaps you should post another thread as this one has been marked as solved and folks might ignore it because of this.

Others will be able to help, I'm sure.
What? What's that? Why are you shouting?

TriciaG
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Post by TriciaG » March 20th, 2020, 10:00 am

(Got rid of the "solved" tag.)
Mystery/PulpFic: Dope, by Sax Rohmer
The one that started them all: Self-Help, by Samuel Smiles
Elizabethan Poetry: The Psalmes of David
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vvocelli
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Post by vvocelli » March 20th, 2020, 11:59 am

Thanks for the ideas and as I'm new to Audacity, I don't know much about the settings. When I record demo samples so I can make sure the volume is loud enough, it seems fine, So I still don't understand why it goes in and out for a duration of a read.

Tricia, Thanks for removing the "Solved" tag.

lurcherlover
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Post by lurcherlover » March 20th, 2020, 12:08 pm

Is it still a sort of fade up from start of recording? What happens if you wait after pressing record for some seconds?

vvocelli
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Post by vvocelli » March 20th, 2020, 5:34 pm

yes, even after letting it come up in volume for a few seconds at the beginning, it goes in and out volume wise. I have no idea why.

KevinS
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Post by KevinS » March 20th, 2020, 6:21 pm

vvocelli wrote:
March 20th, 2020, 5:34 pm
yes, even after letting it come up in volume for a few seconds at the beginning, it goes in and out volume wise. I have no idea why.
Do you have a radio nearby that could be recorded for a minute or two, being careful not to move it? I'd like to see that recording's 'wave signature' on Audacity.
What? What's that? Why are you shouting?

lurcherlover
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Post by lurcherlover » March 21st, 2020, 6:59 am

It could still be the mic or the interface. Can you try another mic?

tovarisch
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Post by tovarisch » March 21st, 2020, 7:16 am

Two thoughts. First, Peter, it's a mic/interface in one, so if Valentina changes one, the other will have to be different as well. Also, because of that, it is likely due to some kind of "auto-level" or "auto-gain" or something like that; the driver adjusts the output according to its own "idea" of what the output should be. Valentina, if you can find something similar to "auto-gain control" or "AGC" or "auto-level" in the properties of your device, try turning it OFF.

Second, Valentina, if you can find (and settle into) the constant speaking pattern (and constancy is king here), then even with the adjustment happening in the driver, you ought to be able to record a relatively constant level, which, after measuring with ReplayGain plug-in or with Checker, you will be able to adjust to the required by LV volume. Compressor effect does help to do just that, to make it more consistent between parts of the track.

And, unfortunately, if you cannot correct (or adjust to) the behaviour of your recording equipment, changing equipment to something that can be adjusted is your only option.
tovarisch
  • reality prompts me to scale down my reading, sorry to say
    to PLers: do correct my pronunciation please

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