Dmg Compression

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Since macOS is based on Unix there are a number of ways to compress files and folders within the filing system using Unix based application code, below are a few options using the Terminal or command line interface (cli). The default command line application interface in macOS is the Terminal and is stored in /Applications/Utilities.

The DMG File format contains data in the form of blocks which are often secured using encryption methods or are compressed using compression algorithms. DMG files are used for installing tools and softwares into the Mac OS operating system. For example, say a DMG file isn't just storing compressed files like images and videos but is instead holding a software program. You can extract, or open, the DMG file in Windows using one of the programs mentioned below, but you can't actually execute the program and use it like you would another Windows application. Dynamic Powerhouse. Compassion is a fully-featured dynamics processor, ready for any dynamic processing on any signal. Behind the UI lies perhaps the most flexible dynamics engine ever designed. Any channel, any task, Compassion is ready to enable you to get the job done.

File and folder compression saves on file size and ensures the contents are captured and delivered or stored as one monolithic file. A compressed file which contains files and folders is generally referred to as an archive. Here are some built-in compression applications you can use including zip, tar, gz, bz2, gz and dmg.

ZIP – Cross Platform

First up is ZIP one of the most commonly used compression techniques used across all platforms

To compress

To extract

If you want to make a zip without those invisible Mac resource files such as “_MACOSX” or “._Filename” and .ds store files, use the “-X” option in the command so:

TAR.GZ – Cross Platform

Second up is TAR, an old favorite on Unix/Linux – you add the GZ for the compression – compresses tighter than zip

To compress

To extract

TAR.BZ2 – Cross Platform

A variation on TAR GZ but with better compression than both tar.gz and zip.

To compress

To extract

GZ

Without the tar

To extract

DMG – macOS Only

This one is macOSnative only – for a GUI interface use /Applications/Utilities/Disk Utility – for command line use:

To create

To mount

To view

To Eject

You can also use a number of different formats for creating a .dmg

  • UDZO – Compressed image (default)
  • UDRO – Read-only image
  • UDBZ – Better compressed image
  • UDRW – Read/Write image
  • UDTO – DVD disk image

That’s the low down, the more common compression packages available will typically be covered in one of the above.

Related

Compassion is a fully-featured dynamics processor, ready for any dynamic processing on any signal.

Behind the UI lies perhaps the most flexible dynamics engine ever designed.Any channel, any task, Compassion is ready to enable you to get the job done.

Grab the demo, see for yourself.

  • If EQuality and Compassion can't do what you want, you have a problem no EQ or compressor can solve!

  • It's the most configurable dynamics plug-in we've ever encountered...
    An outstanding musical dynamics tool that's a jack of all trades and master of most. 10/10

  • Not since the Monolith appeared amongst the apes in 2001: A Space Odyssey, have a tribe of primates looked so bewildered with what had landed in front of them.Compassion is so much more than just another dynamics processor. It is, in fact, nothing less than an evolutionary leap forward and this is the compressor by which all others will be judged. Its flexibility and 'tweakability' warrants that this plugin should spawn its own community of modders. The extent of its possible settings could take us years to realize, but thanks to Dave, the 'creative' use of compression is back on the menu and you won't need Escobar's money to buy in.In Dave We Trust.

    Marc Royal

Overview

  • Unprecedented level of flexibility.
  • Multiple styles of dynamic processing available, with in-depth control.
  • Advanced mode for fine-tweaking, Main mode for fast usage.
  • Mods system for rapid configuration.
  • Zero latency (with lookaheads and oversampling disabled).
  • Low CPU usage.
  • Windows VST,VST3,VST 64,VST3 64,RTAS,AAX 32, AAX 64. Mac VST,VST3,VST 64,VST3 64,AU32+64bit,AAX 32+64bit,RTAS

Sound

  • Fully configurable topology; to sound like any compressor you want.
  • Compression, Expansion, Upward Expansion and Upward Compression
  • Wet/Dry for 'New York'/Parallel Compression
  • Linear Phase Split EQ mode for 'Dynamic EQ' processing
  • Fully configurable detectors with M/S processing
  • Transient Shaper and Clip Limiter modules.
  • Oversampling mode for alias-free operation.
  • Signal path and sidechain EQs

Vision

  • Large, intuitive waveform/gr display.
  • Knee and Response graphs.
  • Advanced mode, with pages for each section.
  • Sidechain and signalpath EQ graphs.
  • Configurable VU, supporting K-metering and variable ballistics
  • Mods system for fast workflow
  • 8 banks of A/B
  • Full preset management system
  • Undo/redo
  • Clip LED

Windows System Requirements

  • Vista / Windows 7 / Windows 8 / Windows 10
  • 32bit or 64bit
  • ProTools 7 or newer.
  • A host that supports VST or VST3, such as:
    • Steinberg Cubase
    • Steinberg Nuendo
    • Steinberg Wavelab
    • Sony ACID Pro
    • Ableton Live
    • Cockos Reaper
    • Magix Sequoia
    • Magix Samplitude
    • AudioMulch

Mac OS System Requirements

  • OS X 10.7 or newer, including Mojave (10.14)
  • Intel Mac
  • ProTools 7 or newer.
  • A host that supports VST, AU or VST3, such as:
    • Apple Logic (32bit or 64bit)
    • Apple Garageband
    • Steinberg Cubase
    • Steinberg Nuendo
    • Ableton Live

Specifically not supported (might work, but I can't test/support these platforms): Windows 95/98/XP, OS X 10.0,10.1,10.2,10.3,10.4,10.5,10.6

1.19 -> 1.20

  • Improved HiDPI support
  • Added OpenGL support
  • Support VST2 getEffectName for some rare hosts

1.18 -> 1.19

  • Fix AU validation in old not-really-supported versions of Logic
  • Reaper key entry improvements
  • HiDPI support in Cubase and Studio One on Windows
  • Improvements with discrete parameters drag/mousewheel

1.17 -> 1.18

  • Mac build now requires 10.7 or later
  • Improve menu position when opening a menu would cause it to appear offscreen
  • AAX Mac window focus improved
  • Fix potential crash when file saving fails
  • Accept ',' for decimal point when entering value by text
  • Fix crash when closing UI with text box open
  • Fix crash with text entry on touchbar MacBook Pro
  • Prevent Cubase/Nuendo right-click menu from appearing when right-clicking on a clutter bar button that accepts right-clicks
  • Support for mono->stereo AU
  • Installer searches for existing VST plugins folder for 64-bit plugins on Windows if run for first time
  • Correctly sign Windows installers with Codesigning cert
  • Improve text and layout for Windows installers
  • Improve install descriptions and logo for Mac installers

1.16 -> 1.17

  • Smooth graph display
  • Improve text editing on 64bit mac
  • Improve VST3 automation
  • Improve mousewheel handling on windows
  • Improve keyboard handling
  • Improve automation resolution in Logic X
  • Support VST3 GR metering in Studio One
  • Fix memory leak with preset loading
  • Updated pagetables for Avid S6

1.15 -> 1.16

Dmg Compression
  • Fix 32bit Carbon UIs on OSX
  • Make zoom-mode follow K-Scale on VU meters
  • Mousewheel allows fine adjust for Sidechain/EQ graphs

1.14 -> 1.15

  • Update AU validation.
  • Allow all AUs to use Cocoa UIs on 32bit mac.
  • Improve speed of session recall for AUs.
  • Fix mousewheel on 2nd screens.
  • Improve text entry for expansion ratios.

1.13 -> 1.14

  • Fix bug with AAX automation whereby discrete parameters could jump.
  • Fix bug with mousewheel on windows to left of main screen on windows.
  • Improve determinism of automation when rendering.
  • Improve handling of OS load dialog for presets.
  • Improvements for latency reporting both realtime and offline.
  • Fix bug with GR time-alignment when oversampled and bypassed.

1.12 -> 1.13

  • Fix bug with A/B in AAX.
  • Fix AAX level meters.
  • Fix AAX GR meter.
  • Added extra-fine zoom for meter.
  • Fix issues with RTAS build.
  • Fix AAX bypass crash.
  • Fix gain instability with very short FIR Smoothing/Clip limiter settings.

1.11 -> 1.12

  • Tidying and optimisation.
  • Reduce saved preset sizes further.
  • Fix crashes with undo/redo.
  • Fixes for Sonar.
  • Fix automation of discrete parameters for PT11 AAX.
  • Fix samplerate issues in Wavelab for VST3.

1.10 -> 1.11

  • Fix bug affecting reloading of settings
  • Fix issues with Windows 32bit AAX and ProTools 10

Damage Compressor Cycling Too Often

1.09 -> 1.10

Dmg compression pack
  • Versioning display for binaries.
  • Significant reduction in load/save times.
  • All-round optimisation and tidying.
  • Ceased support for 10.4 and PPC. 10.5/Intel now required.
  • Improvements for RTAS versions.
  • Fix samplerate related issues for AU.
  • Improvements for AAX Automation.
  • Improvements for redraw strategy on OSX.
  • Improvements for UIs for AU+Cocoa.
  • Fix mousewheel handling on Windows.
  • Fix UI resizing in Live 9 Mac.
  • Fix crash when closing UI for Cocoa AUs
  • Move Windows presets to My Documents to improve Win7/8 usage.
  • Added warning box if file save/load fails.

1.08 -> 1.09

Dmg Compression Tool

  • Fix textboxes in Logic
  • Improve RTAS resizing
  • AAX improvements
  • AAX2.0 and PT11 compatibility.

1.07 -> 1.08

  • Fix Detector Graph bug
  • AAX-AudioSuite Enabled
  • Fix samplerate handling for VST3 in StudioOne
  • AAX enable click-thru - prevents first click from being absorbed when UI is opened
  • AAX Bypass mechanism reworked to match RTAS version

1.06 -> 1.07

Dmg Compression Pack

  • AAX version included
  • Tweaks for stability
  • VST3 Automation improvements
  • Mac builds and Installers optimised and signed
  • Massive optimise for reload of presets.
  • Fix Clip-Limiter denormal issue

1.05 -> 1.06

Dmg Compression Size

  • Fixed memory leak
  • Fixed potential crash in UI
  • Massive improvements to CPU usage with UI redraw/animation
  • Fix focus stealing bug on windows
  • Fix UI crash on mac
  • Invalid text entry returns controls to default values.
  • Fix 'stuck-on' clip light in ProTools HD
  • Fix Win+Ctrl click for Windows ProTools
  • Fix AudioSuite redraw for Windows ProTools
  • Presets are compressed to dramatically reduce session sizes (1/50th)
  • Delay compensate for wet/dry when clip-limiter is pre.
  • No sidechain version of Compassion

1.04 -> 1.05

  • Fixed textbox display, ProTools Mac RTAS.
  • Fix crash when switching between DMGAudio plugins in ProTools using header menu.
  • Fixed obscure potential crash bug.
  • VST3 versions support presets.
  • Fixed bug whereby host redraw would slow down when UI was open.
  • Improved AudioSuite metering and processing.
  • Enable Windows ProTools automation menu.
  • Fixed issues relating to window resizing in ProTools.
  • Added A/B Automation type preference.
  • Always report zero latency when expired/hard bypassed.
  • Can now right-click the A/B menu to toggle.
  • Clip/Limiter is now post M-S decode.
  • Added Limiter pre/post parameter.
  • Added Expander Threshold offset parameter.
  • Fixed issue whereby Auto-release depended on manual release parameter.
    Warning: This might change sessions where autorelease is used. If so,
    set auto-release short time to match manual release time.
  • Fixed bug whereby detectors would display incorrectly as Peak in detector graph.
  • Reduced memory usage by 14MB/instance. Now 3.2MB/instance.
  • Added Peak/Hold indicator for limiter gain reduction.

1.03 -> 1.04

  • Fixed OSX 10.4 support
  • Fixed crash in wavelab
  • Fix AU resize
  • Fix bug whereby LP-split settings were not recalled correctly.
  • Enable RTAS Automation
  • Dezipper control changes.
  • Added menu to allow tabbing between advanced pages (click page-name)
  • Fixed Opto-mod HPF frequency
  • Added ProTools metering support

1.02 -> 1.03

  • Improved preset naming
  • Fixed listen and A/B menu
  • Fixed reset-to-default for Advanced params
  • Improved CPU efficiency for oversampling
  • Fixed rare memory leak
  • Fixed A/B automation
  • Shift-drag for advanced sliders
  • Preserve latency across bypass
  • Improved mousewheel handling
  • Fixed processing in Digital Performer
  • Fixed ProTools Controlsurface integration
  • Fixed Mono AU sidechain functionality

1.00 -> 1.02

  • Fix: Crash in Mono mode when plugin Expired
  • Fix: Misprocessing of Split-EQ in Mono mode
  • Added: Detectors and Split Mix displayed in dB
  • Fix: Display of Expansion/Ratio values
  • Fix: Textual improvements in manual
  • Fix: Mousewheel for Advanced parameters
  • Added: Threshold bars opacity preference
  • Added: Save Zoom state in mods and presets
  • Fix: bug with saving GUI states in mods
  • Added: Preference for Wave Speed on main display
  • Added: Improved preset naming handling
  • Fix: Handling of LP-Split in MS mode
  • Fix: Numerical ordering of Mods
  • Fix: VST2 bypass
  • Fix: A/B Bank/Listen display in some hosts
  • Added: Split EQ 'PL' (parallel) option for more efficient mastering workflow
  • Fix: Reset to default for Advanced parameter sliders

In designing processors, I've found that the most important thing is to understandhow and why they're used. After designing EQuality, investigating Dynamics seemedan obvious next step.

One of the most important things I discovered, which may seem obvious, is thatpeople don't just have one; each different compression task will have a unit bestsuited to it. So it seemed natural to develop a model of dynamic processing that includedall the different schools of design, and build a unit that would allow youto get the job done, no matter what you needed to achieve.

I came up with an idea that fused measurement with circuit design. I measureddifferent compressors, built models of the circuits and then unified all the modelsinto one gigantic structure that could model any of them. Then I made as much ofit variable as possible; so you could dial in designs in between models.

So here's Compassion; going way beyond modelling and giving you a tool thatimparts massive dynamic control. I didn't stop at compression; I kept on going throughgate/expanders, upwards expansion/compression, an absurdlyflexible sidechain, parallel compression, frequency-conscious and frequency-specificcompression (dynamic EQ style), overcompression, the ability to SHAPE your attack/releasecurves, a transient shaper, a hybrid clip-limiter module, the list goes on...

So there I was with the mother of all dynamics processors, with close to 100parameters. And then the interface design work started. After months of researchinto how best to present information and how to structure the UI for easy workflow,the current Compassion UI was born; based on countless hours of discussion with a boardof engineers about their workflow.

I think Compassion is a pretty unique processor; being able to jump so quickly betweenunlistenable sonic death through to the softest most delicate processing a vocal mightwant within a few clicks is an overwhelmingly exciting thing to have; the Mods systemsaving you from needing to constantly dive in to the scores of advanced settings.

- Dave Gamble 2011