Viewing profile — yzhou

minimum 5.5mm^2 is required, so we are talking about 3575 euros here. Besides, it is very rare that you can get a production grade chip on the first try, bug happens all the time, …

why do you say Scott Adams is purely evil?

the devil is in the DAC and ADC. You just can't turn 16bit/24bit data directly to/from analog without much loss. The 1/65536 accuracy voltage divider simply don't exist. So, you ha…

The low-passing with a brick wall filter on 44.1KHz audio can be a bad thing sometimes, for example, pre-echo https://en.wikipedia.org/wiki/Pre-echo You won't hear the pre-echo on …

the probe is placed on the headphone jack. The difference in the vertical scaling is that 0dB DSD signal is 6dB below a 0dB PCM.

In the real world, it is almost impossible to make a voltage divider with 24bit resolution. So all the DAC makers have to convert 24bit audio into lower bits(6bits to 1bits), this …

The brick wall filters used on low sample rate sound cause ringing in the time domain, which can "blur" the neighboring impulse.

There's a big difference in impulse response with different sample rates, any one can see it on a oscilloscope, I bet some one can hear the difference. Those who don't have a oscil…

many older people like my dad, don't know pinyin well. he doesn't input texts, but he browses web sites. He uses a default home pages full of links to start exploring the web.

the point of using number in the domain is, a lot of Chinese people don't know letters, they don't know English words and they can't get "PinYin"(using letters to represent Chinese…

Here's what I want: A cheap text ssh terminal with wifi,or cellular, nice keyboard hardware, with extremely long battery life (or solar powered), which i can just throw it in my ca…

SEEKING WORK Remote (SF Bay area) Speciality: C/C++>20years experience , Python, PHP, javascript, digital/analog circuit design, embedded programming, FPGA Contact: jerryzy@gmail.c…

I've been using taobao intensively for our business for quite a long time. we are a hardware start-up, we bought components from taobao, make, assemble PCB prototypes from taobao, …

we have made a A3P250 FPGA board, with build-in USB interface, total cost of building the board is less than $50, can do a ton of things MCU can not do. would anyone want it if we …

This kind of work is OK for some simple block level circuit designs. In the real world designs, as circuits grow complicated, and parasitics add in, the SPICE convergence issue kic…

Just another reason for not hiring people based on their grades.

From a EE's point of view, what the OP said is that there's too much noise involved in multi-armed bandit algorithm. If that's the case, a low pass loop filter is needed. It's kind…

I think your idea is awesome! I always believe in those "step removing" ideas.

high dynamic range is not about the lowest volume you can hear, it's about the voltage resolution between this sampling point and the next. Base on your assumption, we can all see …

The hearing of ears is a time-domain thing, not a frequency domain thing. It's the frequency response of all the frequency components added together. people might not be able to re…

why do you think "This difference gets lost in the THD already at the DAC "? Do you have numbers to back it up? What's the noise floor of DAC? What's the noise floor of an output s…

why do you think "This difference gets lost in the THD already at the DAC "? Do you have numbers to back it up? What's the noise floor of DAC? What's the noise floor of an output s…

A person can not hear a 22kHz tone doesn't mean he can not hear a sound that contains 22kHz components. For example, a square wave contains lots of high frequency harmonics, the mo…

I guess what he meant was signal to noise ratio, i mean, Aplayer/Cplayer ratio. Too many Cplayer programmer start learning c++ without any idea how cpu and memory works, if you let…