Gong Hui was not discouraged in the slightest, and the path she had decided to follow would be firmly followed. Pen "Fun" Pavilion www.biquge.info

"Master Ming, please be sure to test it for me, I am willing to pay as much as you want. ”

"I don't want a penny, and I don't test, it's just a waste of time, I have work at hand, you can go." "A person who is engaged in technology has such a temper, if he is not focused enough, he can't be so fine.

Gong Hui saw a small speaker on his desk, turned his head in a hurry, connected the MP3 to it, and soon the melodious music fluttered out, but it was very noisy, and he couldn't tell the good from the bad.

"Master Ming, you also know that I am doing procurement in Gumei Electric Appliances, I don't know how many MP3s I have seen, this product is really different, otherwise what am I looking for you to test for, it's not an extra move, please believe me, I'm very anxious now, please do me a favor." ”

Mingyuan finally raised his head, looking like you are a woman who is very annoying Do you know, he reached out and turned off the speaker, then took the MP3 and looked at it again, frowning and unhappy, and said: "Hey, you woman is so annoying, I only have five minutes, I will probably show you, I don't understand you, what is this broken thing to measure." ”

Directly use the headphone jack to pass the analog signal out,A signal enhancement device,Then go into the oscilloscope,You can know it as soon as you analyze it,A brief look at the frequency domain response,This shows whether the relative size of the sound signal of each frequency played by the player can still maintain its original appearance。

Mingyuan was originally careless, and said, "Look at Duola......"

When he saw the frequency response curve, he froze for a moment, staring at it and no longer speaking.

Gong Hui didn't know what it meant when she saw the line above, and she didn't dare to ask, for fear of annoying this technical man.

"My grass, it's actually a straight line!" Mingyuan stared, muttering in his mouth.

Then he pressed MP3 for a while, and pressed back and forth on the oscilloscope for a while, and that straight line appeared several times, Gong Hui was very anxious, and couldn't help asking, "Master Ming, what does this mean after all?"

It's as if the swordsmith saw a more awesome sword and excitedly said, "This thing is really not ordinary." ”

"Master Ming, can you explain it more clearly? Gong Hui asked timidly.

A good frequency response is that each frequency point can output a stable enough signal, and the signal size is the same between different frequency points. However, it is difficult to reconstruct the signal in the low-frequency and high-frequency parts, so there is usually attenuation in these two frequency bands. ”

Gong Hui felt that her head was big.

Fortunately, Mingyuan continued to explain,"The better the output qualityMP3,The straighter this frequency response curve,On the contrary,Not only is it attenuated quickly at high and low frequencies,There may also be jitter in the general frequency band,See,This little guy's curve is almost a straight line without burrs,It's just a hanging。 ”

"I'm grass, who made this, Yinba, it's really crazy, but there is this capital maniac. ”

Although Gong Hui didn't seem to understand it, she still understood that this technically also determined the super sound quality of this product, so she put her mind at ease and hurriedly thanked her, "It's too troublesome Master Ming, thank you, I won't disturb your time." ”

Mingyuan stretched out his hand to protect it, and said hurriedly: "What's the hurry, I'll take a look." ”

"Well, don't you only have five minutes, or I'll come back tomorrow?"

"You woman is annoying, let me study it again. ”

Gong Hui opened her mouth wide in surprise, this person is so weird.

Mingyuan was completely excited, took out a few MP3s, copied the same music in it, the same source file, imported the signal, and said to himself: "See, it's one level higher than the highest-grade moonlight treasure box, on par with Avery and the so-called sound quality king, and then look at other parameters." ”

Gong Hui was also taken aback, she didn't expect this little thing to be even stronger than she expected.

"The local noise is smaller, the dynamic range is wide enough, the harmonic distortion rate of 1000Hz is almost none, the intermodulation distortion is perfectly solved, the stereo separation is ridiculously strong, and there is no crosstalk at all......" Mingyuan popped up a parameter for a while, and carried out a detailed test and compared several products.

Gong Hui stood by and watched his crazy state, his mouth kept talking, and he was getting more and more excited.

"Amazing, amazing, this is a god-level product, the person who developed this product must be a god, what kind of hardware is this made of, is Philips' latest chip?

Gong Hui was already stunned, so powerful? Who the hell did this? It could never be the man with the hippie smile!

Mingyuan quickly dismantled it, and couldn't wait to break it open and shouted, "I'm grass, it's really fake, sigmatel, is this really teasing me?"

Gong Hui came back to her senses and was shocked when she got used to the fact that this was a technical master, "Master Ming, what's wrong?"

"Look, is this still human?"

Gong Hui looked at it, the circuit board layout inside looked beautiful, and she couldn't see anything, so she looked at it carefully in a daze, and was embarrassed to ask, so she didn't speak for a while.

"Master Ming, is there anything wrong with this?"

Mingyuan's expression was, are you an idiot? Explained disdainfully: "Look at the black main control chip, sigmatel, do you see? This thing is a low-end chip, and it actually made this kind of sound quality, the guy who developed this product is simply not a person, who is it?"

"I don't know who developed it. ”

Mingyuan hurriedly said: "What's the matter, you don't know who, how to hold other people's products, doesn't this say that Yinba Company? I gave you a test for free, and I have the opportunity to meet this great god." ”

Okay, I'll do my best.

Gong Hui agreed.

Mingyuan couldn't put it down, fiddling with it for a while, changing the music and testing it again, Gong Hui waited for a long time on the side, and it was not easy to urge him.

Once this technician indulges in it, it is quite terrifying, and he can't feel it after hours.

Gong Hui just stood aside stupidly, until Mingyuan reacted, looked at her strangely, and said something that almost made her collapse, "Hey, why are you still here?"

"Master Ming, give me back the MP3 trouble......"

Before he finished speaking, he was rudely interrupted, and Mingyuan shouted: "Hey, I said that you are unreasonable as a woman, take it to me for testing, and there has never been anyone who wants to go back, and I will give you a test for free." ”

Gong Hui also knew this rule, and hurriedly said: "I'm sorry, Master Ming, I can give you the test fee, but please return the MP3 to me." ”

Mingyuan grabbed it in his hand, like a magic ring, and waved his hand again and again, "Don't pay it back, don't pay it back, never pay it back, don't think about taking it back when it comes to me, and I can't pay the testing fee." ”

It's like a child holding candy in his hand, and the adults don't give it no matter how much they coax it.

……

Ha,The foreshadowing in the early stage is complete,Sour and cool again,Everyone's tissues should be ready!Don't worry, everyone,After it is put on the shelves on January 8th,The fat man will quickly advance the update to Chapter 180!Desperately update!