Recording the (wind noise free) exhaust note

Discussion in 'Equipment' started by S21FOLGORE, May 28, 2020.

  1. S21FOLGORE

    S21FOLGORE Been here awhile

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    Well, not really a good example (both in editing (video / audio sync) and recording audio), but, still better than wind noise full of audio recorded by camera’s internal mic.

    Recording wise, I just have to do some more test, to figure out best gain setting.
    (The recorded level was too low (didn’t want exhaust note peaking at wide open throttle)
    I placed lav mic in air cleaner box in the first part of the ride.
    (I just went to a friend's place (computer repair guy).)
    On the way back home, I recorded inside of Wolfman tail pack (but didn't used that part. I wanted to keep the video short.)

    Synchronizing audio files and multiple cameras video files was real time consuming, and I really don’t have time for video editing right now.
    (Hand crapping for reference point only works when you are shooting short, single file video.
    (But, it works well, in that situation.)
    When you are NOT riding for video shooting, when you are trying to match audio file to dash-cam footage, you have to take (a lot of) time.)

    [​IMG]
    [​IMG]
    #1
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  2. C/1/509

    C/1/509 Now with more sarcasm

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    Sounds pretty realistic, what are you trying to accomplish?
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  3. SmittyBlackstone

    SmittyBlackstone Been here awhile

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    The first part sounds great.
    #3
  4. TBTSyncro

    TBTSyncro Been here awhile

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    i've been involved with this type of thing (recording automotive engine and exhaust sounds) professionally in previous career and i can tell you that there is no simple solution. Having the right mics (yes plural is key). We would use a mix of mics and setups. But most of our setups would involve building an oversized cardboard box around the mic with wind blocking material). It is also a lot easier recording the sound of a car as you can more easily place the microphone after the exhaust (which is key).

    There is a reason that the best audio shops in the business hire teams who do nothing but work as 'recordists'.
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  5. Suncoaster

    Suncoaster Long timer Supporter

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    Are you using a dead cat sock over the mic ?
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  6. S21FOLGORE

    S21FOLGORE Been here awhile

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    Dead cat is (most of the time ) left on my Zoom H1n.
    (It has either dead cat or sponge foam wind screen on it.)



    Today, I tried one more time.



    This time, on the back road near me (Lucas Valley Road, to be precise. Those who live in this area, you know where it is.
    Those who don't live around here, this is where Skywalker ranch is located. Yes, George Lucas still owns Skywalker ranch.
    And no, Lucas Valley wasn't named after George Lucas.)

    I just put Zoom H1n in the tail pack (Wolfman Peak) and recorded today.
    Much easier than running lav mic into the air cleaner box.
    And, while it's not perfect, it does cut down the wind noise without muffling the exhaust note.

    Camera #1
    Mobius, permanently mounted on bike as a dash cam. (Powered by the bike's battery, auto on -off. loop recording.)

    [​IMG]DSC00140
    Camera #2
    Dragon Touch Vista 5

    [​IMG]DSC00139

    Audio recorder
    Zoom H1n (Gray)
    "Gray" version is much cheaper than regular black one.
    B&H sells them.
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  7. S21FOLGORE

    S21FOLGORE Been here awhile

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    Trying to figure out the way to capture the audio for private (Youtube) motorcycle video.

    The important things are ...
    1. relatively inexpensive set up
    2. relatively simple set up (so that I can still enjoy the ride, rather than riding for shooting the video)

    The editing is ... somewhat is a problem.
    It's going to be a little bit more work to edit video files from multiple cameras and audio file recorded separately,
    than, say ... just running one GoPro camera for both video and audio.
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  8. TBTSyncro

    TBTSyncro Been here awhile

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    build a small cardboard box that the mic sits in, and is open only on the rearward side. this will allow the sound from the exhaust to be picked up, but block most airflow noise.
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  9. S21FOLGORE

    S21FOLGORE Been here awhile

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    Low RPM fly-by





    Pretty simple. (Well, the set up is.)
    Just two cameras and one audio recorder.

    Doing everything just by yourself requires some getting used to.
    (But you will get used to, eventually.)


    thanks for the suggestions.

    I will try the cardboard wind screen.
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  10. S21FOLGORE

    S21FOLGORE Been here awhile

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    So, capturing motorcycle sound is a difficult task, even for the professionals.

    Talking about professionals, there's one thing that really bothers me (or, used to bother me) about motorcycle sound in Hollywood films.

    Take a look at this. (Terminator 2 : Judgment day 1991)



    Then, this. (First Blood 1982)



    The bike John Connor rode in Terminator 2 was Honda XR80 (and XR100. Yes, two bikes were used. Edward Furlong rode XR80, his stunt double rode XR100 ...)

    The bike John Rambo stole was Yamaha XT250.

    Both XR and XT are 4-stroke bikes. Why, WHY the Hollywood's sound engineers had to put 2-storke sound in these films?
    (That's what I thought, back then.)
    #10