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Audio Equipment

67 episodes

#6157: Where to Sit When You're Fine-Tuning Your Own Voice

Your phone's built-in mic is the point — the setup around it is what ruins the takes. Rooms, remotes, and the app setting that deletes your data.

speech-recognitionfine-tuninglocal-aiaudio-equipment

#5847: Why One EQ Curve Can't Fix Two Voices

One static EQ curve can't serve two different voices — here's why, and what actually works instead.

audio-equipmentelectronics

#5840: Why Voice Clones Lisp: Sibilants, Codecs, and the Sounds We Lose

Sibilants and plosives are the most fragile sounds in speech — and every stage of the audio chain is quietly built to destroy them.

speech-recognitiontext-to-speechaudio-equipmentaudio-equipmentphysics

#5734: USB Amps: What Actually Happens When You Plug In

Your device pulls current, it doesn't get pushed — and that changes everything about picking USB adapters.

batteries-and-powerelectronicsaudio-equipment

#5721: What's the Red and Black Speaker Cable Actually Called?

It's called zip cord — and the gauge you need depends entirely on current, not the 300V printed on the jacket.

audio-equipmentelectronicshome-networkbatteries-and-powergallbladder-removal

#5720: Active, Passive, and the Speaker That Lied to Daniel

A rented PA speaker turns out to be mislabeled, and untangling why reveals the real difference between active and passive — plus what mic and line ...

electronicsaudio-equipmentbatteries-and-power

#5718: How Far Can You Run RCA, XLR, and 3.5mm Cables?

Published cable-length advice ranges from 3 meters to 200 feet. The physics explains why — and why the cable isn't the variable that matters.

audio-equipmentelectronicselectrical-safety

#5676: DIY Cable Guide: Barrel Jacks, XLR, and What to Avoid

Soldering your own cables won't save money — it buys exact-length runs. But some connectors hide polarity traps and tooling costs.

electronicsbatteries-and-poweraudio-equipmentelectrical-safetymanufacturing

#5328: A Shabbat Radio That Can't Be Paused

A soundproof box that plays podcasts continuously — no pause, no skip, no volume. Just open the lid and listen.

railaudio-equipmenthome-automationopen-sourcerag

#5232: Zello, PTT Buttons, and the Kitchen Intercom Question

Why your Bluetooth speaker ignores Zello's push-to-talk — and what to buy instead for a hands-full, phone-off fallback.

audio-equipmentsmartphonesopen-sourcereliability-engineeringhome-automation

#5160: Bluetooth Peripherals on One Android Phone

How many Bluetooth devices can one Android phone juggle? The seven-device limit is a stack artifact — profiles matter more.

audio-equipmentsmartphonesiotbatteries-and-power

#4925: ESP32 Mics for Remote Home Monitoring

Why an $8 ESP32 with a MEMS mic beats expensive cameras for remote audio monitoring in a vacation home.

home-automationelectronicsaudio-equipmentsurveillance

#4831: The Podcast Player That Doesn't Exist

Why can't you buy a dedicated podcast player that downloads episodes for offline listening?

iotaudio-equipmentsmartphonesinternet-infrastructure

#4787: The Motion Test: Which Weird Peripherals Actually Earn Their Port

Does that fancy peripheral actually remove a motion you make hundreds of times a day? We put steno keyboards, TourBox, Stream Deck, and more to the...

audio-equipmentelectronicsproductivityworkflow-automationopen-source

#4726: Why a 2026 Foot Pedal Uses a 1990s Connector

Why does a brand-new foot pedal ship with an 8-pin DIN connector? The surprising engineering logic behind "obsolete" design.

audio-equipmentelectronicslinuxopen-source

#4684: Focus-Aware Key Remapping on Linux: The Hard Parts

How keyd bridges kernel input events and display-server focus — and why Wayland makes it harder than it should be.

linuxwi-fiopen-sourceprogramming-languagesreliability-engineering

#4413: Bluetooth Tape Measures: What Actually Works

Can you pair a laser measure to your phone and skip manual typing? The compatibility landscape is messy.

iotaudio-equipmentelectronicsgpusbatteries-and-power

#4376: Which Mic Actually Lowers Word Error Rate?

Laptop mics hit 18% WER. A $70 mic drops it to 4%. Here's what actually works for voice-first dictation.

speech-recognitionhallucinationsaudio-equipment

#3953: Bats in Your Bumper: Parking Sensors vs. Lane Keeping

Ultrasonic parking sensors vs. highway lane keeping—two radically different technologies that answer the same question.

electronicscars-and-drivingaudio-equipmentcomputer-vision

#3601: The All-Day Headset Unicorn: 12-Hour Mic & Comfort

One device, all day, great microphone, comfortable enough to forget. What actually exists for 12-hour voice work?

audio-equipmentbatteries-and-powerproduct-durabilityshopping-and-product-research

#3454: Bluetooth Range Lies: How to Get Audio Through Concrete Walls

Your phone's Bluetooth antenna can't punch through concrete walls. Here's the dedicated transmitter that can.

wi-fiaudio-equipmentbatteries-and-powerelectronics

#3446: Where to Clip a Speaker for the Best Sound

Tiny placement changes dramatically alter sound. Learn the physics of where to clip your speaker for the best audio.

audio-equipmentphysicselectronics

#3403: Why Clip-On Speakers Beat Headphones for Parents and Workers

Clip-on speakers solve problems headphones can't. Who uses them, what they clip onto, and which ones are actually good.

audio-equipmentbatteries-and-powergallbladder-removal

#3169: Why Your Phone Betrays You to a Nursery Speaker

Android’s Bluetooth still can’t manage multiple devices. Here’s why—and what actually works.

smartphonesaudio-equipmentbatteries-and-power