Burst Mode & Envelopes
Generate repeated tone bursts with customizable envelopes for testing and timing
Try Burst Mode
1 kHz tone, 100ms duration, 500ms interval
What is Burst Mode?
Burst mode plays short tone pulses with controlled duration and spacing. Each burst can be shaped by an envelope to control how the sound fades in and out.
- Audiometry and hearing threshold testing
- Reaction time and reflex testing
- Click-free audio system testing
Burst Controls
The burst panel provides precise control over each tone pulse:
- Frequency: The tone frequency for each burst (20-20000 Hz)
- Burst Duration: How long each burst plays (10-5000 ms)
- Interval: Time between bursts (0-10000 ms)
- Envelope Shape: How the burst fades in and out
- Repeat Count: Number of bursts to play (1-20)
Envelope Shapes
Different envelope shapes control how abruptly or smoothly the burst starts and ends:
| Shape | Character | Best For |
|---|---|---|
| Hann | Smooth, click-free | Professional audio testing |
| Sine | Very smooth transitions | Psychoacoustic research |
| Rectangle | Abrupt on/off, may click | Timing signals, triggers |
| Blackman | Ultra-smooth, minimal sidebands | Spectral analysis, precision |
Avoiding Clicks: Use Hann or Blackman envelopes for click-free bursts. Rectangle envelopes may produce audible clicks at start and end.
Applications
Hearing Threshold Test
Use repeated bursts to find the quietest level at which you can hear a frequency.
Try Hearing TestReflex Testing
Random interval bursts test reaction time and acoustic startle reflex.
Try Reflex TestTiming Signal
Use precise bursts as timing markers for audio/video synchronization.
Try Timing SignalURL Parameters
Share burst settings via URL:
- gmode=burst — Activates burst mode
- bfreq — Tone frequency in Hz
- bdur — Burst duration in ms
- bint — Interval between bursts in ms
- benv — Envelope shape (hann, sine, rect, blackman)
- brep — Number of bursts
Advertisement