Mela 7.10 introduces Pitch Shifter, a new Audio Processor module that changes the pitch of the Audio signal using a classic delay-line pitch-shifting algorithm. It includes Shift, Window, and Spread controls, letting you shift by up to 24 semitones, adjust the pitch-shifting window from fast and responsive to smoother, and detune the left and right channels in opposite directions.

This update also improves other shifter-style modules. Frequency Shifter now uses a bipolar Spread parameter instead of the old Stereo toggle, Ring Mod adds a Spread parameter for offsetting the carrier frequency between stereo channels, and Mid-Side now has separate Mid and Side controls for adjusting stereo width without affecting the centre. Stack has also moved to the free Collection 0, making this core parallel-processing module available to all users.

For the full details, check out the Changelog.

Latest Tutorial

Mela 7.10: Classic Pitch Shifter Tutorial

In this tutorial, learn how Mela’s classic Pitch Shifter module works and how it can be combined with other modules to create creative effects. The module uses the classic windowed pitch shifting algorithm, and its Shift parameter is an excellent modulation target. The video also demonstrates how to embed the module inside the Effect module to create a dry/wet mix, or inside the Digital Delay feedback path to create evolving pitch-shifted feedback effects.

Mela 7.10 Changelog

Pitch Shifter

• The Pitch Shifter module changes the pitch of the Audio signal using a classic delay-line pitch-shifting algorithm, offering Shift, Window and Spread controls.
• Shift: Adjusts the pitch by up to 24 semitones in either direction.
• Window: Sets the length of the overlapping segments used for pitch shifting, from 5 to 500 ms. Shorter windows respond more quickly, while longer windows generally sound smoother.
• Spread: Detunes the left and right channels in opposite directions by up to 50 cents.

Frequency Shifter

• Replaced the Stereo toggle with a bipolar Spread parameter.
• Shift applies to both channels, while Spread offsets them in opposite directions: left uses Shift minus Spread and right uses Shift plus Spread.
• Shift and Spread are scaled independently by the selected Range, including the Cubic range.

Ring Mod

• Added a Spread parameter that offsets carrier frequency between stereo channels.
• At 200%, the left channel runs at half the Frequency value and the right channel runs at double the value. At 50%, the scaling is reversed.
• Spread provides useful presets such as -5 c and +20 c. Other values can be entered in cents and are automatically converted to percentages.

Mid-Side

• Replaced a single parameter with two independent controls for mid and side signals, making it easier to adjust stereo width without affecting the centre.
• Both controls support values up to 200%.

Other Changes

• Noise Gate: Improved the DSP for smoother gating.
• Parameters with semitone units now use st instead of s to avoid confusion with seconds.
• Factory Patches: Added a “Feedback Delay” subpatch that makes it easy to create an audio feedback loop with a delay.
• Stack has moved from Collection 4 to the free Collection 0, making it available to all users. Like Group, Stack is a fundamental building block for building patches, offering parallel processing alongside Group’s serial processing.
• Mod Steps: The module has graduated from Mela Lab and can now be found under the Modulator category.
• MIDI Echo: The module has graduated from Mela Lab and can now be found under the MIDI Processor category.

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