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SIR Audio Tools updates StandardCLIP to v1.1

SIR Audio Tools

SIR Audio Tools has updated StandardCLIP to v1.1.


  • The new StandardCLIP 1.1 has a switch to select several different clipping modes:
    • Soft Clip Classic: This is the default algorithm, and it's the same one, which was used in the previous version.
    • Soft Clip Pro: This new algorithm has a slightly different characteristic. It compresses an adjustable dynamic range by half. A line in the function plot shows from which level the saturation begins. The dynamic integrity below this threshold stays intact:
      • 25% - compresses the last 6 dB into 3 dB, and adds 3 dB.
      • 50% - compresses the last 12 dB into 6 dB, and adds 6 dB.
      • 75% - compresses the last 18 dB into 9 dB, and adds 9 dB.
      • 100% - compresses the last 24 dB into 12 dB, and adds 12 dB.
    • Hard Clip: cuts the audio at the clipping level without soft-saturation.
  • New clip fader: While the previous StandardCLIP cuts the signal at exact 0dB, the clipping level can be adjusted in the version 1.1.
  • New logarithmic function plot: StandardCLIP now has a logarithmic function plot, but the old linear function plot is still available. To switch between the linear and logarithmic function plot, click on the diagram. A small red point in the diagram shows the current peak-value.
  • Gain Difference Meter: Shows RMS (Root Mean Square, red) and peak (green) difference between the input and output of the oversampled clipping process. (The output gain and ceiling level have no effect on this display).
  • Higher maximum oversampling factor: As suggested, it's now possible to choose x64, x128 or x256 as oversampling factor (for most applications, a smaller oversampling factor is quite enough).
  • Offline oversampling option: This can be used to have a higher oversampling factor while bouncing (whether or not this is supported, depends on the host)
    When using an offline oversampling factor, which differs from the online oversampling factor, the online oversampling factor has to be at least 2. This is important for various reasons. (Among other things, online/offline have to share the same latency setting). This function has been successfully tested with:
    • Pro Tools 12 (File -> Bounce To -> Disk), the "AudioSuite" clip rendering function from the menu still uses the online oversampling factor.
    • Logic Pro X (File -> Bounce -> Project or Section).
    • Cubase 8 (File -> Export -> Audio Mixdown).
  • The advanced oversampling options-dialog has now a reset button, which resets all oversampling related settings to their default value.
  • All faders now snap to a 0.2dB grid. If you need a more accurate adjustment, hold down the shift-key while dragging the mouse or click on the dB-Value label to enter the exact value via keyboard.
  • The output gain & ceiling fader can be linked now. This link has no effect on automation. If you automate either of them, only this one will follow the automation.


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