SUNDAY User Manual

The one-knob worship vocal chain — install it, calibrate it, and you're ready in a minute.

Contents
  1. System requirements
  2. Installation
  3. Quick start
  4. The controls
  5. Tips
  6. Troubleshooting
  7. Uninstall

1System requirements

SUNDAY is macOS-only. There is no Windows or VST version. It is an effect (aufx), not an instrument.

2Installation

  1. Download SUNDAY and unzip it if needed.
  2. Drag the SUNDAY app into your Applications folder.
  3. Open the app once. This registers SUNDAY with macOS so your DAW can find it.
  4. Open your DAW. SUNDAY appears under Audio Units → JC Audio → Sunday. Insert it on a vocal track.

If macOS blocks it ("unidentified developer")

The first time you open the app, macOS may warn that it can't be opened. This is normal for apps installed outside the App Store. To allow it:

You only need to do this once. If your DAW still doesn't list SUNDAY, quit and reopen it, or rescan plugins (in Logic: Settings → Plug-in Manager → Reset & Rescan).

3Quick start

  1. Insert SUNDAY on your lead vocal track.
  2. Press play so the vocal is sounding, then click Calibrate and keep the vocal playing for about 1.5 seconds. SUNDAY tunes itself to this voice.
  3. Turn the Amount knob until it sounds right — usually somewhere around 50–75.
  4. Pick a Space (Intimate, Anthem or Vintage). Done.

4The controls

Amount (the big knob)

The one knob that drives the whole chain. At low settings the vocal stays clean and natural; as you turn it up, SUNDAY adds warmth, presence, density and space — moving toward a warm, up-front, radio-ready lead. It is loudness-matched, so turning it up makes the vocal better, not just louder.

Calibrate

With the vocal playing, click Calibrate and keep it sounding for ~1.5 seconds. SUNDAY listens to the voice, detects its pitch and sibilance, and automatically sets the high-pass filter, compression threshold and de-essing to suit that singer.

After calibrating, a short readout appears — for example "Deep male lead · 70 Hz / HPF 65 Hz · Comp −18 dB · De-ess −37 dB" — showing the detected voice type and the values it set. If you see "No vocal detected," the audio wasn't playing during capture; play the vocal and try again.

Space — Intimate / Anthem / Vintage

Three curated spaces built from a layered Room + Hall (plus a touch of slap). Intimate is close and present; Anthem is a big, epic hall; Vintage is a room with more slap for a tape-ish feel. The reverb ducks down while you sing and blooms on the tails, so the vocal stays clear.

GR meter

Shows the total gain reduction (in dB) SUNDAY is applying — how hard it's leveling and compressing. It's a guide, not something you have to set.

A/B (Compare)

Toggles between your processed vocal and the dry input. Because the comparison is loudness-matched, you hear the real difference in tone — not just the louder one winning.

Presets

SUNDAY ships with starting points you can pick from your DAW's preset menu: Worship Lead, Pop Lead, Intimate Ballad, Thick & Upfront, and Subtle Polish. Load one, then fine-tune with Amount and Space.

5Tips

6Troubleshooting

SUNDAY doesn't appear in my DAW

Make sure you opened the SUNDAY app at least once. Then quit and reopen your DAW. In Logic, you can force a rescan under Settings → Plug-in Manager.

"No vocal detected" after Calibrate

The track wasn't playing audio during the ~1.5-second capture. Start playback so the vocal is sounding, then click Calibrate and let it run.

The calibration result looks wrong

Calibrate again over a more sustained, clearly-pitched phrase (not whispered or spoken). The voice-type label is a friendly guide; what matters is that the vocal sounds right.

7Uninstall

Quit your DAW, then move the SUNDAY app from your Applications folder to the Trash. That removes the plugin from your system.

Still stuck? Email us and we'll help — jcaudio1998@gmail.com.