Audio Tremolo Online
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Audio Tremolo
Give a track a repeating rise and fall in volume. Choose the modulation frequency and depth to move from a gentle pulse to a stronger tremolo effect.
- Set the modulation rate in hertz
- Adjust the depth of volume change
- Keep playback pitch unchanged
Choose the pulse rate
Frequency describes how many modulation cycles occur per second. Slower settings create distinct swells; faster settings produce a more rapid texture.
Set how deep the level moves
Lower depth keeps the pulse subtle. Higher depth causes a stronger difference between the loud and quiet parts of each cycle.
Match the musical intention manually
The tool uses a frequency control rather than automatic beat detection. Choose a rate that fits the material by listening.
Distinguish tremolo from vibrato
Tremolo varies amplitude. Vibrato varies pitch, which this effect does not do.
Technical references: Web Audio API specification
Audio Tremolo FAQs
No. The volume envelope is applied over the existing sample sequence.
This effect changes volume rather than stereo position. Use Stereo Panner for a fixed placement.
Tremolo varies volume, while vibrato varies pitch. Increase the tremolo frequency for faster pulses and the depth for a more obvious effect. This tool applies volume modulation; it does not create pitch vibrato or synchronize automatically to a detected song tempo.
Audio Tremolo updates the effect during playback when you adjust a control. Use A/B to compare with the source. Render download creates a separate file using the current settings; moving a slider invalidates the previous download.