Orinj Bass chorus

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Orinj version 3.0.0

The Orinj Bass Chorus is similar to the Orinj Chorus. It creates multiple repetitions of the same sound with minimal delay. The idea of a chorus is to create a fuller, richer sound with the impression that the sound has multiple sources. The repetitions of the signal (the voices) are with the same amplitude as the original signal (no decay). To make the chorus natural, the small delays between the original signal and the repetitions vary over time (the delay sweep).

The difference between the Orinj Bass Chorus and the Orinj Chorus is that the Orinj Bass Chorus does not repeat bass frequencies. This is so to avoid the muddiness in the sound that may appear if the bass frequencies are repeated multiple times. The Orinj Bass Chorus thus uses a high pass filter, a filter that passes only frequencies above some specific cutoff frequency and stops all frequencies below that frequency. Frequencies above the cutoff frequency are chorused. Frequencies below the cutoff frequency remain only in the original signal, but not in any of the repetitions.

Using the Orinj Bass Chorus

The Orinj Bass Chorus can be added to tracks in the multitrack session view, tracks the loop building view, and to waves in the single wave view. In the multitrack session view and in the loop building view, first select the track to which you want to add the effect. In all these views, click on Effect, Delay, and then on Orinj Bass Chorus in the Orinj menu. You will see the following dialog.

The Orinj Bass Chorus dialog

When this dialog becomes visible, the Orinj Bass Chorus effect has been added. Adjust the parameters of the bass chorus in the dialog above and click on Close. These parameters are described below.

Orinj Bass Chorus parameters

See Orinj Effects for an explanation of the Title, Track, Presets, Bypass, and Lock channels controls. The remaining Orinj Bass Chorus controls are as follows.

  • Left channel voices: Use this control to set the number of voices in the left channel. The number of voices is equal to the number of repetitions of the original signal plus one – plus the original signal. The chorus can have between 1 and 99 repetitions, which means between 2 and 100 voices.
  • Left channel maximum delay: Use this control to set the maximum difference in time between the original signal and any of the repetitions in the left channel. The maximum delay can be between 10 milliseconds (ms) and 200 ms.
  • Left channel minimum delay: Use this control to set the minimum difference in time between the original signal and any of the repetitions in the left channel. This delay is specified in milliseconds (ms) and can be between 5 ms and 100 ms.
  • Left channel rate: Use this control to specify the speed with which the differences in time between the original signal and any of the repetitions in the left channel changes. The fact that the delays between the original signal and the repetitions change is called delay sweep. This rate is measured in milliseconds per second (ms/s) and can be between 0 ms / s and 50 ms / s. For example, a value of 5 ms/s means that the delay will change by at most 5 ms for every second.
  • Left channel invert: Use this control to invert the phase of the chorused signal in the left channel (to turn the signal upside down). The bass chorus effect may sound different if the phase of the chorus (but not the original signal) is inverted, depending on the settings for the remaining parameters.
  • Right channel voices: Use this control to set the number of voices in the right channel. This control works in the same way as the left channel voice control.
  • Right channel maximum delay: Use this control to set the maximum difference in time between the original signal and any of the repetitions in the right channel. This control works the same way as the left channel maximum delay.
  • Right channel minimum delay: Use this control to set the minimum difference in time between the original signal and any of the repetitions in the right channel. This control works the same way as the left channel minimum delay.
  • Right channel rate: Use this control to specify the speed at which the delay between the original signal and any of the repetitions in the right channel changes. This control works the same way as the left channel rate.
  • Right channel invert: Click on this checkbox to invert the phase of the chorused signal in the right channel.
  • High pass frequency: Use these controls – the box and the slider – to set the cutoff frequency, above which frequencies will be chorused and below which frequencies will not be chorused (will remain in the original signal but will not show up in the repetitions). The cutoff frequency is between 300 Hz and 2.1 KHz.
  • Precision: Use this control to set the precision, with which high and low frequencies will be separated. The high pass filter employed to separate the two frequency ranges can be precise and requiring a lot of computations or less precise and requiring less computations. In all high pass filters, the high frequencies will be passed approximately with their original amplitude, whereas the amplitude of the low frequencies will be significantly lowered. Around the cutoff frequencies, there will be a somewhat smooth transition from very low amplitudes for the low frequencies to the original amplitudes for the high frequencies. The less precise the filter is, the slower the transition will be.
  • Left channel gain: Use these controls – the box and the slider – to set the gain that will be added to the left channel repetitions of the signal. These controls are typically not necessary for choruses that use a small number of repetitions. When there are many repetitions, however, these repetitions may overwhelm the chorused signal. In these cases, the gain can be adjusted down.
  • Right channel gain: Use these controls – the box and the slider – to set the gain that will be added to the right channel repetitions of the signal.

As you change the maximum delay in any of the channels in the bass chorus, the minimum delay might change automatically to ensure that the minimum delay is always smaller than the maximum delay. Similarly, as you change the minimum delay in any of the channels, the maximum delay might change automatically to be always higher than the minimum delay.

As with the Orinj Chorus, when the chorus is initially set, the initial delay for any of the repetitions is a random value between the minimum and maximum delay. At the beginning of playback, the initial delay for each of the repetitions is therefore different. The same random values are used when playback stops and is restarted to ensure that the effect has a consistent sound. During playback, the delay amount for each of the repetitions changes (delay sweep) at a random rate up to the (maximum) rate of change specified in the dialog, up and down between the maximum and minimum delays.

See Orinj Effects for additional notes on: where Orinj effects can be used, using boxes and sliders that control the same effect parameter, applying effects to mono and stereo waves, and using effects during playback. See Orinj Working with effects for additional information on creating, modifying, moving, removing, and processing effects. See Delay effect for additional information on the different types of delay effects in audio processing, including the bass chorus.

Dry and wet mix

The Orinj Bass Chorus supports dry and wet mix changes. That is, you can adjust the mix between the original signal and the chorused signal. See Orinj Effects for more information.

The Orinj version 2 Bass Chorus

The Orinj version 2 Bass Chorus dialog

In version 2 of Orinj, the precision is controlled by a spinner that shows the actual transition of the high pass filter. There are no controls for the gain of the repetitions.



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