Audio Flash Trigger Circuit

Sound Activated Flash trigger using 555 and LM386 ...

https://electronicsarea.com/sound-activated-flash-using-555-and-lm386/

The circuit shown below, performs this operation and can activate an electronic flash, for a period of time sufficient to take those amazing photos. Sound activated flash trigger circuit operation. This circuit uses three main components. A low power audio amplifier (LM386) A 555 Integrated circuit (555) A thyristor (SCR1)

Wireless Remote Camera Flash Trigger Circuit Schematic

https://www.electroschematics.com/wireless-remote-camera-flash-trigger/

The circuit is configured to trigger an external camera flash when sound pulses exceed a certain pressure level. The trigger sensitivity can be adjusted for different situations — for instance, to detect popping champagne bottles, bursting bubbles, or popping water balloons. As you can see, the flash circuit is powered with a 9-V battery.

Stop Action 3D-Photography using an audio flash trigger

https://www.stereoscopy.com/faq/stopaction.html

This method uses some type of audio input to control when the camera flash fires, and can be used to take 3D photos of things like water balloons breaking, etc. Sound Trigger This circuit and it's accompanying directions and hints was originally posted on the InterNet newsgroup "rec. photo" by Alan Killian.

High Speed Photography Flash Trigger by Sound or Laser ...

https://www.instructables.com/High-Speed-Photography-Flash-Trigger-by-Sound-or-L/

DIY - Universal Sound and Optical Slave Flash Trigger ...

https://www.diyphotography.net/universal_sound_and_optical_slave_flash_trigger/

A common issue with all high-speed flash triggers is the fact that the triggering event is usually too early and the flash fires a bit too early. To solve this issue, you’d want to use a delay circuit. The delay circuit will enable you to control the time between the triggering event and the flash burst. You can read about delay circuits here.

Audio Trigger Sensitivity Adjustment ... - All About Circuits

https://forum.allaboutcircuits.com/threads/audio-trigger-sensitivity-adjustment-in-audio-power-amplifier.135232/

The Audio Trigger Circuit PCB in the amplifier has a potentiometer and some Resistors in the signal path. The Audio trigger sensitivity can be adjusted incrementally via the potentiometer's rotational range, which is limited to about 200-220 degrees, to high at 50 mV max by turning the potentiometer max anticlockwise (8 o'clock) and low at 250 ...