Chapter 193: Audio Decoding Chip and MP3

The three of them listened to the whole song in silence. They are not indulging in the beautiful song, but listening for any noise or interruption in the song.

"Perfect!" the song ended, and Luo Li applauded. But unexpectedly, in the applause, Lao Yang glared at him fiercely, made a "shhh

Looking at Luo Li, who looked embarrassed, Liu Zeyang hurriedly diverted his attention.

"Mr. Luo, the current chip supports MPEG1, Laye

1, 2, 3 full bitrate 8Kbps~384Kbps audio playback, which fully complies with all ISO standards on MPEG.

In the process of research and development, Lao Yang found that the audio sound part was extracted separately from the continuous image, that is, the film format, and the audio volume compressed by the compression ratio of 1:10 was small, and the sound quality was almost not lost, so this format was created to cooperate with the use of decoding chips.

In other words, as long as the format is correct, then our chip can play any song in the world!"

After Luo Li heard Liu Zeyang's explanation, although he was still confused about most of the technical terms, he felt very familiar with them when he heard them. After thinking about it, I suddenly felt a shock in my heart. "Isn't what he's talking about the idea of creating MP3 music formats?"

Shocked at the same time, he also knew that Liu Zeyang was relieving his embarrassment, and after smiling in gratitude to him, Luo Li touched his nose and asked, "Is it difficult to implant the chip into the mobile phone?"

Liu Zeyang said categorically: "Yes, but the difficulty lies in the control of costs." ”

Seeing that Luo Li was a little confused, Liu Zeyang continued to explain: "Mr. Luo, last time you said that the selling price of the PHS standard mobile phone manufactured this time should be controlled within 1,000 yuan. But in fact, we have estimated that the cost is much higher than that!

Although the audio decoding chip is independently developed by us, the R&D cost can not be taken into account, but the cost of manufacturing the chip is beyond our control.

At present, the cheapest chip foundry company TSMC offers 300 yuan each, and several major companies in Fuso offer 600 to 800 yuan each, so counting the expensive flash memory chips, the cost price of these two chips alone has reached 1,000 yuan. So selling a mobile phone at a price of 1,000 yuan obviously won't work. ”

"So what?" Luo Li did not rush to conclusions about Liu Zeyang's words, because through several exchanges and contacts, he found that this young engineer always had his own unique ideas and ideas.

For example, when he just talked about the foundry costs of TSMC and other manufacturers, Luo Li was very satisfied.

You must know that he never asked Liu Zeyang to inquire about the price of producing chips, but Liu Zeyang took precautions and thought of this matter earlier. Therefore, Luo Li knew that Liu Zeyang must have his own ideas, so he wanted to hear his ideas.

"So I suggest that in order to completely control the cost within 1,000 yuan, we can produce PSH standard mobile phones without music playback.

The mobile phone with music playback function is priced at about 1000 yuan to 2000 yuan, and this kind of mobile phone is mainly CDMA high-end mobile phones. ”

"Agreed!" Luo Li also had this intention, and the two of them had the same idea.

However, he also knows that with the advancement of technology, the price of flash memory chips will not always remain high, and the price will be adjusted when the time comes.

Moreover, as long as their own team can independently produce monocrystalline silicon or even wafers, then the foundry of decoding chips will not need to go overseas to seek orders, and the cost will always be controlled.

After this matter was finalized, Luo Li suddenly asked Liu Zeyang a new question: "Zeyang, can we make a music player with a decoding chip alone, just like a walkma."

In that case, as long as there is a function to play music, is it okay?" The new question raised by Luo Li was exactly the new way of making money that he had just come up with in his head. You know, the popularity of MP3 in the previous life was only two or three years later!

In his expectant gaze, Liu Zeyang quickly gave a positive answer. "Of course you can! Mr. Luo, to put it bluntly, what you said is actually to put the flash memory chip that stores the song and the music decoding chip that interprets the song together, and there is no special technical content.

What? Does Mr. Luo want to produce music players again?" Liu Zeyang was not surprised by Luo Li's idea, because they had thought so when they were developing chips.

Luo Li nodded, ha, knowing that the MP3 that would only appear in South Korea in 1998 would be developed by Xia Guo in advance.

He coughed lightly, hiding the excitement in his heart and said, "I think that because this device doesn't need a platter, it only needs to copy the music in the flash memory to play, so the volume will definitely be larger than that of the Walkma."

Much smaller.

Therefore, it is estimated that there will be many people who like this product. ”

Liu Zeyang agreed: "Yes, Mr. Luo." I don't know, but if I could have a small music player, I would buy one right away.

You know Walkma

It's too heavy, and it's meant to play discs on its own. So the cost of use is also a lot more expensive. Like most international students, Liu Zeyang also had a Walkma

and use it every day. Buying new discs almost every month used to be a heavy burden for him, so he was more concerned about the cost of use.

"No, that's not the point. Actually, the key is the Walkma

The main focus is portable, but if we produce a music player, we will beat the Walkma on the portable

Think about it, do you want your music player to be in your backpack or do you want to listen to music anytime and anywhere around your neck or wrist?" Luo Li winked at Liu Zeyang, turned around and walked out of the laboratory.

In more than an hour, Luo Li got the biggest harvest he had experienced since his rebirth in three simple prefabricated houses.

Although there are still 108,000 miles away from breaking through science and technology, he vaguely feels that he has made a substantial contribution to the motherland for the first time.

At the very least, it was nearly ten years earlier than Rockchip designed a domestic audio decoding chip. In other words, the light of domestic products will appear in advance on the land of the motherland.

"Luo Li, you're finally out. Try to find a way to get me out, the smell in the car is so bad that I'm about to throw up!"

Luo Li had just walked out of the laboratory when he was startled by the sound of the car.

Only then did he remember that Sabina was still in the car, and that the car had not yet turned off.

Originally, he just wanted to go in to visit Liu Zeyang and the others and come out, but he stayed for so long unconsciously, it seems that he has indeed neglected this little girl.

"Is there any way to think about it, then I'll pick you up!" Luo Li was in a good mood, so he didn't care about the mud under his feet, stepped on the bricks and came to the car, picked up Sabina, who had carefully walked out of the car, and carried it on his shoulder.

Although Sabina was not heavy, Luo Li's footsteps could no longer step on the bricks as smoothly as before. One accidentally, his foot slipped into the muddy water.

Luo Li laughed, simply stepped on both feet in the muddy water, and carried Sabina forward with difficulty!