Audio Latency Meter

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InterlinkKnight

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30,900

Published on October 2, 2021 4:20:38 PM ● Video Link: https://www.youtube.com/watch?v=eRSyJysEV_o

Duration: 3:55

2,788 views

60

I hate audio latency, but I also like wireless devices so over the years I’ve been trying several Bluetooth headphones, earbuds and speakers and I always noticed a considerable amount of delay. However, knowing exactly how much latency one device has is very hard, making a comparison too subjective.

Sponsored by PCBWay - Full feature custom PCB prototype service: https://www.pcbway.com/

I couldn’t find a device that measures audio latency so I decided to create my own. If you want to make one, all the files and instructions are in this instructables article: https://www.instructables.com/Audio-Latency-Meter/

Here's the video with flashes and sound to test your device: https://youtu.be/eljOX6fG6uY

How much audio latency can you detect? Here's the challenge video: https://youtu.be/8y4_cVD4--k

Arduino Sketch: https://drive.google.com/file/d/1MBEvhBsGCvoHX1X80mKOc11pWCPfabaq/view?usp=sharing


Parts:
- Arduino nano: https://amzn.to/3iru0op
- OLED 0.96" I2C: https://amzn.to/2UNDCLO
- 2 AA battery holder: https://amzn.to/3irHXBU
- M3x10mm Phillips screws: https://amzn.to/3e44FMp
- M2x4mm and M2x6mm HEX screws: https://amzn.to/3fdb0Ff
- M2 Washers: https://amzn.to/3fvwehO
- Resistors 5.1K: https://amzn.to/2A2gHE6
- Button: https://amzn.to/3gqDu0i
- 2.54mm JST-XH Connector 2Pin: https://amzn.to/3A7yohs
- 10K Ohm Multi-turn potentiometer 3296 with handle: https://www.ebay.com/itm/381427296466
- 1K Ohm Multi-turn potentiometer 3296 with handle: https://www.ebay.com/itm/301900614269
- Light detection photodiode module: https://amzn.to/3uyMTJU
- Sound detection microphone module: https://amzn.to/3a0xXeo
- MT3608 DC-DC boost converter: https://amzn.to/3D0tyEs
- 3mm LED: https://amzn.to/3B8klcP
- 2.54mm male pin headers: https://amzn.to/2Y8WDia
- Custom PCB gerber files: https://drive.google.com/file/d/1TzKcd8FKk7kyoNVlTV7oP6dACHd9FWRg/view?usp=sharing
- 3D printed case: https://www.thingiverse.com/thing:4979910


Recommended Tools:
Electronic Parts Tester (ESR LCR-T4): https://amzn.to/2QvQJlP
Breadboard (good quality): https://amzn.to/2QsyY3C
Storage Case for Jumper Wire: https://www.walmart.com/ip/The-Hillman-Group-Large-Storage-Case-1pk/46494509
Multimeter (Fluke 17B+): https://amzn.to/2L3PNQk
Rigol DS1054Z Digital Oscilloscope: https://amzn.to/2C5ZwD7

My favorite headphones: https://amzn.to/3uvInMs

Note: As an Amazon Associate I earn from qualifying purchases.


Website: https://www.interlinkknight.com/
Patreon: https://www.patreon.com/InterlinkKnight/