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Thread: Help me to find Better Recording after DIY acoustic treatment

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    Question Help me to find Better Recording after DIY acoustic treatment

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    Hello,

    I record audio tutorial at my home studio and recently I moved to a new place and did DIY acoustic treatment to reduce the room reflections.
    BTW I have no connection with music industry I just record audio tutorial.


    I've done two sample recordings (each approx. 1 min long):
    one "without acoustic treatment" and
    the other one with acoustic treatment.

    I listened to both the recordings but couldn't find much difference, may be, because I have multimedia headset so would you please help me to find out which recording sounds better. DAW is Reaper and I attached the RAW recordings:


    FYI: First 10 seconds are room tone then I started speaking...


    Recording without acoustic treatment
    Dropbox - Without_acoustic.mp3 - Simplify your life



    Recording with acoustic treatment
    Dropbox - 3rd-with-acoustic.mp3 - Simplify your life

    Please Note: While doing this recording at 5:30am some neighbors woke up and made some noise but I finished it fast so I was slightly close to the mic than the earlier recording thats why it sounds little loud otherwise I did both the recording at the same place, sitting at the the position and with the same mic.


    1. Is file "with acoustic treatment" sound somewhat better?

    2. Is sound muffled?



    UPDATE Jan 20

    I made many changes in my DIY acoustic treatment after getting your feedback and I hope it will work better than earlier:

    Dropbox - jan 20_1st_take.mp3 - Simplify your life

    This is a raw file.

    I request our fellow members @keith.rogers @TalismanRich @mjbphotos kindly have a look at it

    Thanks in advance!
    Last edited by CatMalone; 01-19-2020 at 19:49.

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    I hear noticeably less echo in the "with treatment" version. It's going in the right direction and will be easier to listen to. I am curious what your DIY treatment is.

    There's a fair amount of background noise that you might try to address.
    "... I know in the mornin' that it's gonna be good
    when I stick out my elbows and they don't bump wood." - Bill Kirchen

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    I agree with Keith that 'with treatment' is better, less room reflections. ALso, for voice work like this, recording at the volume/closeness of your 'with treatment' sample will result in less noise being noticed between phrases.
    Mike B My new album on CD Baby: Fact and Fiction
    My Bandcamp site: http://mikebirchmusic.bandcamp.com

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    Hi Cat. Good to see you're back.

    The acoustic treatment definitely sounds better.

    I don't hear it being muffled at all. The one with acoustic treatment also sounds a bit quieter in the initial part. I could hear your breathing and some of what sounded like you shuffling paper. If you're having difficulty hearing the difference, a good set of headphones may help. The typical multimedia headsets aren't necessarily designed to let you hear that level of detail.

    Things have improved immensely since your initial posts this past summer.

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    Quote Originally Posted by keith.rogers View Post
    I hear noticeably less echo in the "with treatment" version. It's going in the right direction and will be easier to listen to. I am curious what your DIY treatment is.

    There's a fair amount of background noise that you might try to address.
    Alright

    1. Sure, let me share what I did under DIY treatment:

    At my left, I hung a small size woolen bedsheet (but it was pretty thin) on the wall
    At my back, I had a folded quilt, on top of it, a pillow and those all were covered with a bedsheet and then I put a think blanket on it followed by my left side.

    For mic: rather keeping anything at back, I directly covered the "back" of the mic with 2 beanies (attached them with a friendship band)

    I know it wasn't good DIY treatment but it was big leap for me to do this kind of stuff because I never wanted to do this but I pushed myself to do this uncomfortable thing.

    Fortunately, it sounds bit better than without treatment.


    2. I'd do something to fix the noise

    and will also do something more to improve the acoustic treatment by hanging blanket etc...

    I'd share my result with you guys.

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    Quote Originally Posted by mjbphotos View Post
    I agree with Keith that 'with treatment' is better, less room reflections. ALso, for voice work like this, recording at the volume/closeness of your 'with treatment' sample will result in less noise being noticed between phrases.
    Thank you for reviewing, I'm grateful to you.

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    Quote Originally Posted by TalismanRich View Post
    Hi Cat. Good to see you're back.

    The acoustic treatment definitely sounds better.

    I don't hear it being muffled at all. The one with acoustic treatment also sounds a bit quieter in the initial part. I could hear your breathing and some of what sounded like you shuffling paper. If you're having difficulty hearing the difference, a good set of headphones may help. The typical multimedia headsets aren't necessarily designed to let you hear that level of detail.

    Things have improved immensely since your initial posts this past summer.
    Hi TalismanRich,

    Likewise
    Hope you're doing good.

    I remember your suggestion about Reaper, in last summer you recommended me to try Reaper and at that time Reaper's interface and learning curve intimidated me because I was comfortable with audacity as I was using it for quite good time. BUT I taken your suggestion seriously at that time and started using and learning Reaper.

    2. Yeah, I know but due to some reasons I'm not getting studio monitor headset, there are a few other priorities.

    3. Thank you for the kind word. I don't have a formal education in music or sound so I consider myself a noob when it comes to audio but I've insatiable appetite to learn and get better in it (atleast to that extend so that I do good recording) but still sometimes LUFS, RMS, TruePeak, NosieFloor confuse me (even though I learned little bit about them) because slightly change in gain and mic position etc.. while recording, that change all these figures, anyways

    Thanks for reviewing.

    I'm grateful to you

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    Question

    UPDATE Jan 20

    I made many changes in my DIY acoustic treatment after getting your feedback and I hope it will work better than earlier:

    Dropbox - jan 20_1st_take.mp3 - Simplify your life

    This is a raw file.

    I request our fellow members @keith.rogers @TalismanRich @mjbphotos kindly have a look at it

    Thanks in advance!

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    It sounds like you have eliminated much of the room echo from your sound.

    What I still hear is a fairly consistent whine in the noise floor. You can hear it faintly through the whole track. Its about 40 dB or so below your normal voice. I've isolated and amplified it so that you can hear what it sounds like. I'm not sure where it is coming from. It could be due to a lack of shielding. What mic are you using?

    If you can't find the source, you can eliminate it using the ReaFIR plugin in subtract mode. Set your cursor in the silence section and read the noise for a couple of seconds. That will drop the background noise.
    Attached Files Attached Files

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    The spectrum of that noise has the fingerprint to me of a cheap (sorry!) 16 bit USB converter. The spike at 1kHz and the 'mess' further up the frequency scale gives it away. The 100Hz hum blip is from an active device of some sort with poor 50Hz mains filtering on its supply rails but is probably too low to be a problem.

    These poor quality converters are usually found in small mixers but I suppose some internal soundcards could be to blame? That would tend to explain the hum. You can eleiminate to some degree the audibility of the whine by changing Windows recording levels.

    Papers shuffled? !! Never give a reader a bundle of scripts! Put the words on large cards (called "idiot boards" over here) or at least pin individual pages up where they need not be touched.

    Dave.
    Attached Thumbnails Attached Thumbnails spectrum-hr-silence-png  

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