Search results for query: understanding

Continuing the series on learning measurements, I recorded one last night on power amplifiers. Alas, my external microphone got disconnected and internal one to the camera was used. So the sound quality is rather poor. A personal note: as you may know, I don't allow advertising in my...

Per popular demand, I recorded a long (1 hour) video on how to read speaker measurements but also, the underlying research (and physics) that mandate some of those concepts. Also covered is equalization and listening tests (briefly). As usual, my videos are "one take" directly recorded and...

I have been meaning to write an article for a while on what balanced audio means. Alas, have not had time so I thought I do a video on it instead. Hopefully for people who are new at this, it clarifies different things we call "balanced" and benefits it can provide: Hope you find it useful.

For some of you this is old news but for many, I thought it would be good to do a tutorial on frequency response. No, not the trivial aspects of it but digging into psychoacoustics so that you can properly analyze headphone, speaker and room measurements and determine audibility of deviations...

Technical explanation of different grounds in your audio system and all the misconceptions around ground loops, buzz and hum. Bill Whitlock Presentation: https://bennettprescott.com/downloads... Entreg Olympus Minimus grounding box review: https://www.audiosciencereview.com/fo...

...of the most difficult concepts we have in audio measurements. While I have not done a full text write up on this, the concept is included in my tutorial on digital audio measurements...

Hello everyone. I am a bit under the weather today so didn't do any measurements but thought I do a video on dynamic range / signal to noise ratio and what it means at high level. In a future video I will dive much deeper into how much of it we need. So consider this the first installment...

This is a detailed walk-through of my headphone review and measurements in the context of Hifiman HE-6 headphone. By definition is rather long but you can watch it faster than real-time and slow down where needed: Text review of Hifiman HE-6...

...is a tough topic to cover and I had to do it over and simplify it from my first "take." Hopefully you can follow it. :) Article: understanding digital audio measurements: https://www.audiosciencereview.com/forum/index.php?threads/article-understanding-digital-audio-measurements.10523/...

EDIT: Kind translation to Spanish by member @RamiroColasurdo here: https://www.audiosciencereview.com/forum/index.php?threads/article-understanding-digital-audio-measurements.10523/page-8#post-1486638 A detailed tutorial on how one can characterize the true performance of DACs (whether...

Here is a tutorial and documentation on measurements I perform. I will update it from time to time to keep it current. Equipment The weapon of choice for me is the Audio Precision Sys-2522. Here is a picture of it in my rack (top box): This is a very capable device able to work both in...

Signal processing methods can be complex to understand leading to misconceptions. None is more victim of that than upsampling or interpolation. I am sure you have heard of people saying they play their HD content on 4K display and it looks "almost 4K." Same with audio. There is this notion...

I have been working on a tutorial on what phase is. This is one of those mysterious topics that is foreign to many. As I got into it, the text became longer and longer and as such, I have not been able to finish it. :) In the interim I thought I do a search to see if there are any good video...

Understanding FPGAs FPGAs have become part of the parlance of DAC technology so I thought I write this article to explain what they are. Before we understand FPGAs we need to first learn a bit about digital circuits. Digital circuits used to be designed using discrete tubes and then...

...the key aspects of chip design at the hear of just about every piece of electronics we use today. It is updated for this post. ---- Understanding Chip/Processor Technology A recent technical article on Intel’s new chip reads “Intel's first 22nm CPU, codenamed Ivy Bridge, is off to an odd...

In a recent thread on Benchmark AHP2 amplifier (http://www.audiosciencereview.com/forum/index.php?threads/benchmark-first-watt-abx-facepalm.766/#post-23784) I noted that their marketing page for that unit showed a class B amplifier but said that it was class AB. Even though this is a much...

I post this elsewhere but I am highlighting this in its own thread given the amount of misinformation on both sides of the fence on this topic: ---- Unfortunately he makes some serious technical errors in his argument: "The other really great thing about a digital system like HDMI is that...

Modern computing power has put in our hands incredibly powerful measurement tools. Prime example is Room EQ Wizard (REW), a free program which is an amazing toolbox of acoustic measurements. Alas, while computing power may be free enabling us to run such analysis that used to cost a lot of...

Hello everyone. This is an in-depth article I wrote for a 2015 issue of Widescreen Review magazine, taking a deep dive into myriads of technologies and features facing us in the next generation video delivery formats in general, and Ultra-HD variation of Blu-ray disc. You are going to run into...