Automatic Gain Control on Recording? (Autosave?)

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⚠️IMPORTANT
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Automatic Gain Control on Recording? (Autosave?)

Post by ⚠️IMPORTANT » Wed Apr 15, 2020 10:52 am

Hi
I have a huge problem I record Audio on Amateur Radio and some people scream in there Radio and some whisper so our Software often record to loud or nothing who is hearable. :shock:
Is there a way to Auto Save after 60Minutes + when its silent to not cutoff any Radio Call?
Thanks!

kozikowski
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Re: Automatic Gain Control on Recording? (Autosave?)

Post by kozikowski » Wed Apr 15, 2020 1:45 pm

some people scream in there Radio and some whisper
Audacity doesn't apply effects, filters or corrections when recording.
Is there a way to Auto Save after 60Minutes + when its silent
I don't know of a way to auto save, but Audacity has Sound Activated Recording. Audacity > Edit > Preferences > Recording > Sound Activated Recording.

Audacity doesn't make a very good surveillance recorder.

Koz

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Re: Automatic Gain Control on Recording? (Autosave?)

Post by ⚠️IMPORTANT » Wed Apr 15, 2020 2:02 pm

I don't know of a way to auto save, but Audacity has Sound Activated Recording. Audacity > Edit > Preferences > Recording > Sound Activated Recording.
I use that currently. The problem is when it run 24/7 the file would get insane big and is not good to rehear if something happened back then. :? So smaler bits with a Time and Date would help a lot to find a incident.

kozikowski
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Re: Automatic Gain Control on Recording? (Autosave?)

Post by kozikowski » Wed Apr 15, 2020 5:27 pm

So smaler bits with a Time and Date would help a lot to find a incident.
Yes it would.

Audacity doesn't have time stamps and it doesn't have progressive updating of storage files. That's a surveillance recorder.

Koz

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Re: Automatic Gain Control on Recording? (Autosave?)

Post by Emerogork » Thu Apr 16, 2020 6:52 am

I too would like an AGC when recording but I doubt it is worth my while to hold bu breath. (-:
If there is any way to help to move this along, count me in.

Right now I am looking into building one in Windows.

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Re: Automatic Gain Control on Recording? (Autosave?)

Post by steve » Thu Apr 16, 2020 1:32 pm

⚠️IMPORTANT wrote:
Wed Apr 15, 2020 10:52 am
I record Audio on Amateur Radio and some people scream in there Radio and some whisper
This is always a problem when working with amateurs. It makes editing a lengthy and painful process. The real solution is "don't work with amateurs unless they are willing to learn". Failing that, ensure that everything is recorded at a low enough volume to avoid clipping, and expect to do a lot of editing. Unfortunately there is no magic bullet.

Plug-ins such as "LevelSpeech2.NY" (viewtopic.php?p=337845#p337845) and "AGC" (viewtopic.php?p=194179#p194179) can help in some cases.

Note that Windows often provides automatic gain control in the "Sound Enhancements". We generally recommend turning that off as AGC is killer of high quality recording.

Another alternative is to record with a portable recorder. There are many models available, and they frequently have features like AGC and voice activation. As with computer recording, for high quality recording, it is usually best to switch those features off and use manual editing and compressors in post production.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

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Re: Automatic Gain Control on Recording? (Autosave?)

Post by ⚠️IMPORTANT » Thu Apr 16, 2020 1:40 pm

I use an SDR and a Virtual Audio Cable.

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