Purpose

Harmonizer adds pitch-shifted voices to a source and mixes them into one stereo output. By default it stacks fixed intervals above and below the input. It can also follow harmony from the music lane, taking its notes from a chord or scale source.

Use

Insert it inline on a monophonic source such as a voice or lead. Wire audio into the audio input and route the output onward. For a fixed harmony, set the number of voices and the per-voice intervals. To follow live harmony, wire a chord or scale source and switch the mode so the voices track the incoming notes.

Inputs and outputs

• Input 0: audio is the signal to harmonize. It accepts mono or stereo PCM and is required.
• Input 1: scale accepts a scale ring so voices stay in key. Optional.
• Input 2: chord accepts a chord ring for chord-follow harmony. Optional.
• Output 0: out emits stereo audio with the harmony mixed in.

Controls

• Mode: where harmony comes from: fixed intervals, or following the chord input.
• Numvoices: how many shifted voices are mixed in.
• Interval1 to IntervalN: semitone offset for each voice in interval mode.
• Wetdry: balance between the dry input and the harmonized voices.
• Rootnote: root used when resolving scale and chord harmony.
• A4hz: tuning reference for pitch conversion.

Notes

• Interval mode is the simplest path: set the number of voices and the intervals you want and play.
• Chord-follow mode lets symbolic harmony from the music operators drive the harmonized voices, the same way Bassline takes its harmony from a chord source.
• Harmonizing works best on clean monophonic input. Dense or noisy sources track less reliably.

Ports

Inputs

• in row required
  audio_pcm_f32_mono_v1audio_pcm_f32_stereo_v1
• scale row
  scale_v1
• chord row
  chord_event_v1
• root row
  control_f32_v1
• voices row
  note_voices_f32_v1

Outputs

• out row
  audio_pcm_f32_stereo_v1

Parameters

Numvoices (Numvoices) Int op('harmonizer').par.Numvoices

Default:

3

Range:

1 to 8

Interval1 (Interval1) Int op('harmonizer').par.Interval1

Default:

0

Range:

-24 to 24

Interval2 (Interval2) Int op('harmonizer').par.Interval2

Default:

4

Range:

-24 to 24

Interval3 (Interval3) Int op('harmonizer').par.Interval3

Default:

7

Range:

-24 to 24

Interval4 (Interval4) Int op('harmonizer').par.Interval4

Default:

12

Range:

-24 to 24

Interval5 (Interval5) Int op('harmonizer').par.Interval5

Default:

-12

Range:

-24 to 24

Interval6 (Interval6) Int op('harmonizer').par.Interval6

Default:

16

Range:

-24 to 24

Interval7 (Interval7) Int op('harmonizer').par.Interval7

Default:

19

Range:

-24 to 24

Interval8 (Interval8) Int op('harmonizer').par.Interval8

Default:

24

Range:

-24 to 24

Wetdry (Wetdry) Float op('harmonizer').par.Wetdry

Default:

0.5

Range:

0 to 1

Mode (Mode) Menu op('harmonizer').par.Mode

Default:

intervals

Options:

intervals, chord_event, note_voices

Rootmode (Rootmode) Menu op('harmonizer').par.Rootmode

Default:

param_midi

Options:

param_midi, control_midi, control_hertz

Rootnote (Rootnote) Float op('harmonizer').par.Rootnote

Default:

60

Range:

0 to 127

A4hz (A4hz) Float op('harmonizer').par.A4hz

Default:

440

Range:

1 to 20000

Rootchannel (Rootchannel) Int op('harmonizer').par.Rootchannel

Default:

0

Range:

0 to 63

Chordvoicing (Chordvoicing) Menu op('harmonizer').par.Chordvoicing

Default:

root

Options:

root, first_inv, second_inv, spread, drop2

Chordoctave (Chordoctave) Int op('harmonizer').par.Chordoctave

Default:

0

Range:

-4 to 4