Audio and Video

HDMI conversions

The consumer market has adopted High-Definition Multimedia Interface (HDMI®) technology in TVs, projectors, and other multimedia devices, making HDMI a globally recognized interface. HDMI is a very popular video interface, but not everything have HDMI inputs or outputs. An HDMI converter is a device that converts an HDMI signal to another format — and vice

Capacitor distortion

A resistor is a resistor, a coil is a plain ol’ inductance, and a capacitor is a capacitor – or so you thought. Alas, life isn’t quite so trivial… There are non-ideal properties of real components. Capacitors have non-idealities that you should know about when designing electronics circuits. If you are building high frequency circuits

Audio measurement software

Here are links to some useful audio measurement software: https://www.roomeqwizard.com/ Many people rely on the Room EQ Wizard (REW) software. This “donationware” program measures every aspect of room acoustics (e.g., frequency response, reverb decay times, and much more). It also includes a distortion analyzer to measure the distortion of loudspeakers. Coupled with a high-quality sound

Video converter LVP603S

A video wall is a collection of video displays tiled together to create a large single screen, often used to view large amounts of data. Video switchers and converters are indispensable tools for video professionals. Video switchers and converters are essential tools in the realm of audiovisual production, broadcasting, and multimedia content creation. I have

Video converter VP-724DS

Video switchers and converters are indispensable tools for video professionals.Video switchers and converters are essential tools in the realm of audiovisual production, broadcasting, and multimedia content creation. I have worked on the field and own devices on this category myself. Video switchers, also known as vision mixers or production switchers, are extensively used in live

Bullshit HiFi products

I Gave Money to Criminals – feat. Dankpods https://youtu.be/JMAu_mCxoII?si=5j-GDydbQhn45NSS “Around every corner, it feels like people are trying to scam you out of your money. But no one tries harder than audio companies. No I’m not talking about, Apple, Sony, Sennheiser or Samsung. I’m not even talking about hi-fi audio companies like Marantz, Bang and

Phantom power in 3.5 mm jack!

Who decided it was a good idea to put 48V phantom power for microphone to 1/8″ / 3.5 mm jack? This is like asking intentionally for a disaster (fried mic or other device) to happen one day or next. This is this funny silly mixer/soundcard “M6 live sound card” sold in price range $15 up

Bad RCA cable

Unshielded RCA cable is bad design. The truth is that unshielded RCA cable is bad design and should be avoided. Unshielded unbalanced cables are very sensitive to capacitive coupling especially when circuit impedance is high (impedance mostly determined by signal source output impedance in HIFI systems). For example power cords radiate a magnetic field and