need to understand Release on compression

Discussion in 'Mixing and Mastering' started by samsome, Dec 3, 2019 at 12:33 PM.

  1. samsome

    samsome Kapellmeister

    Joined:
    Apr 4, 2015
    Messages:
    244
    Likes Received:
    44
    PLease confirm if this statement is true or not "the compression still works and compresses even when the signal falls below the threshold"

    if not...i don't see why release would be doing anything to the signal...

    if yes please further explain so i can understand

    thank you
     
  2.  
  3. Baxter

    Baxter Audiosexual

    Joined:
    Jul 20, 2011
    Messages:
    2,852
    Likes Received:
    1,687
    Location:
    Sweden
    Release is the time it takes to go to resting position (no attenuation) after going under threshold value.
     
  4. samsome

    samsome Kapellmeister

    Joined:
    Apr 4, 2015
    Messages:
    244
    Likes Received:
    44
    so the signal is still getting compressed under the threshold? and why is that
     
  5. dtmd

    dtmd Producer

    Joined:
    Jan 15, 2016
    Messages:
    125
    Likes Received:
    109
    Location:
    UrAnus
    Like an anal sphincter? Contracting bowels with abdomen muscles creates pressure. 1:1 threshold (2:1, 4:1.. sphincter engagement) - signal is outputted freely, as (pressure ratio dependant) is. Sphincter (fully open) does nothing. Bellow threshold (somewhere, when you are guest, and for some reason it's not suitable to go with 1:1 ratio) sphincter is (attack and release) reacting to contractions/pressure. How fast/slow will react to the uneven contractions feeding compression input, and/or how slow/fast will release compressed material, makes output more... bulky, even, compressed.
     
    Last edited: Dec 3, 2019 at 1:32 PM
  6. No Avenger

    No Avenger Audiosexual

    Joined:
    Jul 19, 2017
    Messages:
    3,078
    Likes Received:
    2,167
    Location:
    Europe
    Statement is true. I suggest you try different release times on a snare and a cym. Then you'll hear what it's useful for.
     
  7. Cav Emp

    Cav Emp Audiosexual

    Joined:
    Dec 7, 2014
    Messages:
    2,029
    Likes Received:
    1,659
    when I didn’t fully understand the sonic implications of different compression parameters the thing that helped me most was just testing it out on a master bus. Especially something you mixed yourself. Nothing will drive home the significance of attack and release times like having some unwanted pumping and breathing over the whole range channels that you spent so much time and effort mixing
     
    • Like Like x 2
    • Agree Agree x 2
    • List
  8. No Avenger

    No Avenger Audiosexual

    Joined:
    Jul 19, 2017
    Messages:
    3,078
    Likes Received:
    2,167
    Location:
    Europe
    Don't forget it's importance for shaping drum sounds.
     
  9. Moonlight

    Moonlight Rock Star

    Joined:
    Jun 12, 2011
    Messages:
    1,524
    Likes Received:
    450
    Location:
    Earth
    • Like Like x 4
    • Winner Winner x 2
    • Useful Useful x 1
    • List
  10. Moonlight

    Moonlight Rock Star

    Joined:
    Jun 12, 2011
    Messages:
    1,524
    Likes Received:
    450
    Location:
    Earth
    It also helps to play around with extrem settings on simpel sounds to hear how the compressor reacts.
    eg max negative threshhold attck 0 and then turn up teh attack time, that reveals how the attack time works etc ...
     
    • Agree Agree x 2
    • Like Like x 1
    • List
  11. Baxter

    Baxter Audiosexual

    Joined:
    Jul 20, 2011
    Messages:
    2,852
    Likes Received:
    1,687
    Location:
    Sweden
    Because of the release time. Look at the excellent picture posted by Moonlight above.
     
  12. Talmi

    Talmi Audiosexual

    Joined:
    Dec 22, 2015
    Messages:
    1,699
    Likes Received:
    1,408
    Yes timing in compression can be confusing. Hard to gasp in practice, need to test on different materials to understand :
    1 : what it does
    2 : how in relation with all the other settings of compression (attack and release timing, threshold and ratio) different strategies are available : a short release time has a different result with a short attack time and a high threshold and a low ratio, a high ratio and a low threshold will greatly impact the way you have to set your timings.
    The problem also is that different manufacturers have different conception of what timing of attack measures (british and american) and different time table according to what the tech they are using allow them to accomplish.
    You also have different response curves (both attack and release) which will give different result even with similar timing in the behavior, even differences regarding to what level does the release releases to when the compressor starts to release (current level of the input signal, or back to 0).
    You'll have access to all those settings in the advance panel of DMG Audio Compassion, testing in an advanced maner with all kind of materials and while playing with all those settings is the best way to understand. Compression is indeed a dark art.
     
    Last edited: Dec 3, 2019 at 3:59 PM
  13. justanengineer

    justanengineer Newbie

    Joined:
    Nov 4, 2019
    Messages:
    5
    Likes Received:
    1
    Nope. Release does not monitor the threshold parameter. Release occurs when the output exceeds the input.
     
    • Like Like x 1
    • Interesting Interesting x 1
    • List
  14. Olymoon

    Olymoon MODERATOR Staff Member

    Joined:
    Jan 31, 2012
    Messages:
    2,407
    Likes Received:
    1,353
    I agree that to understand compression and it's parameters, including release, the best is to make it obvious, even if you will probably never use it that way.
     
  15. Olymoon

    Olymoon MODERATOR Staff Member

    Joined:
    Jan 31, 2012
    Messages:
    2,407
    Likes Received:
    1,353
    Yes, release keeps the compression after the signal falls , but it's a way to somehow mask the fact that the signal was compressed, specially at high compression ratios, as the release time is about a slope, so compression decrease progressively.
    If you don't do it that way, in many situations you would notice the different between compressed and uncompressed sound. At least this is the original function of release.
    Beyond this, release can be used in creative ways, including to achieve exactly the opposite: make compression audible for sure, in an artistic way often related to the tempo.
     
  16. Baxter

    Baxter Audiosexual

    Joined:
    Jul 20, 2011
    Messages:
    2,852
    Likes Received:
    1,687
    Location:
    Sweden
    Isn't that the same thing in laymen terms? Please clarify as I'm not an electric engineer, only a sound engineer (working with compressors for 25 years).
     
  17. No Avenger

    No Avenger Audiosexual

    Joined:
    Jul 19, 2017
    Messages:
    3,078
    Likes Received:
    2,167
    Location:
    Europe
    Noob. :guru:
     
  18. Rainy Keys

    Rainy Keys Ultrasonic

    Joined:
    Mar 12, 2013
    Messages:
    103
    Likes Received:
    33
    Location:
    Nashville, TN
    I've been trying to completely understand compression for years now and I still can't grasp the concept. Good luck:wink:
     
    • Funny Funny x 1
    • Interesting Interesting x 1
    • List
  19. Sinus Well

    Sinus Well Producer

    Joined:
    Jul 24, 2019
    Messages:
    230
    Likes Received:
    140
    The Attack parameter specifies how long it takes the compressor after exceeding the treshold to compress the signal with 2/3 of the specified ratio. The release parameter does exactly the opposite: it indicates how long it takes for the compressor to return to its resting state after falling below the threshold.
     
  20. No Avenger

    No Avenger Audiosexual

    Joined:
    Jul 19, 2017
    Messages:
    3,078
    Likes Received:
    2,167
    Location:
    Europe
    :woot:
     
  21. Claudia

    Claudia Newbie

    Joined:
    Nov 28, 2019
    Messages:
    14
    Likes Received:
    2
    Location:
    USA
Loading...
Similar Threads - need understand Release Forum Date
Help needed understanding 10-way r2r AD2 .rar package. Software Jan 5, 2017
Need Some Help Understanding The Demented Sounding 9/11 Firetruck Horns... Education Aug 30, 2015
Need Help Understanding Mixing Mixing and Mastering May 22, 2012
"Brah! That kick needs a little more punch" Lounge Tuesday at 6:17 PM
I need feedback [Hybrid Trap] Our Music Nov 24, 2019
Loading...