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Comment by pc86 | Hacker News Reader

Great article! Is there any inherent audio quality difference between USB and XLR in your experience?

You’re always gonna connect XLR over USB anyway, so not really. It’s just that XLR gives you a lot more flexibility to change microphones, use your interface to control gain or add padding, or if you’re a musician record instruments. But a USB AT2020 or similar is gonna be excellent for calls no matter what.

This is not true. USB microphones do not have as high quality as XLR microphones connected to a usb interface. In general, USB mics have a lower signal to noise ratio (SNR) and a higher noise floor.

Does this matter for gaming or calls? Not really, as it will definitely sound better than crappy laptop or headphone mics. But there is a marked difference. The AT2020 usb mic doesn't even go up to 20khz. Not to mention the A-D conversion from a dedicated unit and the mic preamp are going to be better than the onboard electronics of a usb mic.

Err no an xlr mic into a sound card is going to be better.

What sound cards support direct XLR input?

In nearly every case, a dedicated usb interface is going to have better quality ADC and mic preamps. High-quality sound cards are not prioritized by consumers, so they remain rather poor quality in most laptops and pcs. Even something like a focusrite scarlett is going to improve the signal chain immensely (plus you get the added bonus of a decent DAC as well).

Focusrite for one :-) and external sound card worth its name with have them

I did of course mean a real external sound card.

And a usb mic is not going to have as good a mic capsule at the same price point which was my point.

Probably less static, lower noise floor, more tonal and full sound. I've used both and I obviously prefer XLR but it probably doesn't make any difference for casual use.

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