Session recording: MP3 to take home.

Hypnotika records every session as MP3 — music + voice + anchors — and writes to disk every 30 sec to survive crashes.

1 · Enable

  1. Settings → Audio & Recording → enable „Session recording (MP3)"
  2. Bitrate: 128, 192, 256, or 320 kbps. Recommended: 192 kbps (~90 MB per hour)
  3. Storage: defaults to Documents/Hypnotika Sessions/. Customizable.

Recording starts automatically on first phase change. Stops automatically on Soft Stop.

2 · What's recorded

  • Music bus (all tracks) — pre master volume slider, independent of your listening volume
  • Mic bus (your voice) — controlled by mute toggle
  • Trigger bus (all anchor sounds you fire)

Not recorded: system sounds, other apps. Hypnotika uses internal audio routing, no OS loopback.

3 · Naming

Format: YYYY-MM-DD_Session_HH-MM-SS.mp3

4 · Auto-save every 30 sec

While recording, Hypnotika writes to disk every 30 seconds (overwrites the file). On app crash, power loss, or hard close: maximum 30 sec of audio is lost — the rest is safe.

On clean Soft Stop: encoder is „flushed" (= last frame closes properly). On force-close, last ~30 ms frame might be slightly unclean but file plays fine.

5 · GDPR note

Recording contains the client's voice — special category personal data. What to consider:

  • Get written consent before the session
  • Encrypt files (e.g. VeraCrypt container) on shared devices
  • Don't share or upload to cloud without consent
  • Delete or anonymize after retention period (10 years for medical practitioners in Germany)

Hypnotika itself sends NO recordings to us or third parties — all files stay local on your disk.

6 · MP3 to take home

One of the USPs: hand the session MP3 to the client (USB stick, email attachment, secure cloud link). Clients listen 2-5 times in the first two weeks — significantly amplifies trance learning.

Recommendation: don't ship the raw 70 MB file. Re-encode to 128 kbps in Audacity (~50 MB) and normalize loudness.

7 · Recovery on app crash

If the app crashes during a running recording and you still need the file:

  1. The recording folder contains the file with the latest auto-save state (max 30 sec before the crash)
  2. Open the file in Audacity — it plays back, the last frame may be slightly unclean
  3. Optional: in Audacity „Effects → Repair" applied to the end

Related: Audio setup · Mic & ducking

Blog post to go deeper:

📖 The best microphone for online hypnosis sessions — 5 concrete models compared, tips on proximity effect and room acoustics.