The Next Generation of aptx

AptX Adaptive Audio Technology Has Been Designed to Provide a Bluetooth Wireless Alternative to Trade Systems That Works All Apples, Including, Including.

Dynamic Low Latency Mode

Great for Gamers, IT Keeps Audio in Sync with Media, Reducing Drieded Audio/Lip-Synchronization Issues.

Adaptive Bit Rate

The bit rate adJusts to Provide Seamless Glitch-Free Audio No Matter What You Are.

HD Quality Audio

WhatEver The Device, Wherever You Are, You can enjoy high resolution bluetooth wireless audio.

Who Qualcomm aptx adaptive audio?

AptX Adaptive Was Creed to Anter Demands As a Tech-Savvy User. IT Promises High Resolution, Uninterrupted Audio that Simply Works, Delivering a Premium and Robust Solution.

We Live in An Increasingly Wire-Free World

Experience the Same Audio Quality Wirelessly

Immerse Yourself in Mobile Gaming with Synchronized Audio and Video

Encounter New, Immersive Experiences, Faster

Sports headphones KZ

This model of KZ wireless headphones is protected according to the IPX5 standard, and therefore is well suited for sports. The high sound quality in them is ensured not only by the presence of APTX, but also by support for the technology for reducing noise CVC4. The device is built on the basis of the CSR8645 chipset and is associated with a sound source using the Bluetooth 4 protocol.2. Built.built battery in the headphones with a capacity of 130 MAH provides up to 8 hours of autonomous work.

Not all wireless headphones are equally useful or a few words about the problem of codecs

Having bought wireless headphones for listening to music, many users note that the fidelity of reproduction in them is lower than in headphones, where the sound is transmitted through the wire. Such cases are far from always the consequence of the audiophile placebo. Very often they are caused by codes that are used to transmit sound. The source of the problem can be both the headphones themselves and the smartphone used for sound production.

This post will contain answers to common questions related to the quality of sound transmission by Bluetooth from a smartphone to wireless headphones, as well as some recommendations for choosing wireless headphones and smartphones using the APTX codec codec. I am sure that the material will be useful to everyone who is puzzled by the choice and use of wireless headphones. If this is your case, welcome to the cat.

Why aptx?

We already had a detailed post about sound transmitting codecs working with a blue tooth. Everything that is written in this article can be compressed in 2 sentences:

Today, for most users, the most important of the most preferred codec of the sound of sound transmission is aptx. It is especially good when an additional algorithm is used that reduces the maximum delay time of.Low Latency.

I draw such a conclusion on the grounds that Aptx encodes a sound with a sampling frequency of 44.1 kHz, a bit of 16 bits and a bit of up to 352 kbit/s. And this is enough for such fidelity of reproduction that the vast majority of people subjectively does not distinguish from CDDA. An essential factor is that this codec is relatively widespread in modern smartphones, players and wireless headphones. And here the reader’s attentive and knowledgeable topic may notice that devices with SBC support are much more common than APTX and will be right. The right is that any device using the good old A2DP profile (and this is almost all) will work with SBC. But, as they say, there is a nuance.

The fact is that SBC was created on the basis of the MPEG-1 Audio Layer II codec, better known as MP2, already 1993. And, quite naturally, the SBC inherited from this algorithm a lot of shortcomings, such as the noise from quantum errors and other compression artifacts that are clearly visible by ear.

This codec is capable of providing the maximum bitrate 345 kbps for stereo, according to the recommended, and 512 kbit/s according to the maximum parameters of the encoder. With a subjective assessment of sound transmission using SBC, many evaluate the quality of SBC-sound as unsatisfactory.

SBC is characterized by delays in the range from 100 to 250 milliseconds, which, for example, do not happen when using Aptx Low Latency.

Apple’s abundance of devices guaranteed popularity to another codec. AAC. It provides a 264 kbit/s bandage with a sampling frequency of 44.1 kHz. Subjective sensations from the quality of the sound transmitted using the AAC are described as something between SBC and APTX or equate to the latter. The number of devices working with this codec is limited to the use of apple technology.

About other codecs (AptX, LDAC, etc.) who work with hairebrus, can also be read in the already mentioned post. I only note that devices with their use are relatively rare.

Compatibility or what is wrong with APTX?

Among the whole variety of smartphones sold on the territory of our vast Motherland, I could not count a pair of hundreds of models that support APTX, and for the most part these are by no means cheap devices. This is largely due to the position of Qualcomm Inc., which earns on the sale of APTX licenses. It is interesting that Aptx sometimes does not even fall into the functionality of popular bestsellers and some flagship devices. For some of them, where the codec can be maintained at the chipset level (t.e. where are Snapdragon 835, 845, 821, 820, 810, 805, 801, 800, 650, 615, 410 and, possibly, some others), come up with various ways to restore Codec performance, by “interrogating” smartphone.

As a rule, questioning this kind is carried out through a backup. The native version, for example, the popular Miui firmware, is replaced by an unknown android, and there is also a hypothetical risk of “oxidizing”. I am silent about the fact that this slightly violates the licensing rights of Qualcomm Inc. Just in case, I leave a link to the guide for such a firmware that may not kill your phone (but this, of course, is not at all accurate).

I emphasize that this kind of non.guaranteed methods work only in cases where there is no official support of the codec, but it can be maintained at the level of iron. Everyone else who wants to evaluate the difference between SBC and APTX will have to purchase a phone that is at least hypothetically (t.e. at the hardware level) is able to support technology.

I would strongly recommend any devices that officially support the codec. Why I am publishing a link to their full list. And this is by no means for the licensing rights of developers, but for the sake of users who risk many, installing left firmware. over, there is a chance that in modern devices with official support will be a more perfect and modern APTX HD, which we wrote in detail here.


When choosing headphones with APTX (Low Laten, AptX HD), it should be borne in mind that the technology involves more active energy consumption than when using SBC. For this reason, it is also worth soberly evaluating the autonomous operation of the headphones, which manufacturers often indicate taking into account the use of the basic SBC codec. AptX is usually 30 % less than APTX. In this regard, it makes sense to acquire headphones with a greater battery capacity. In addition, many note that the use of this technology reduces the radius of the device to 10-15 meters with direct visibility. For some, this is critical, especially if it is planned to go far enough from the source. It is better to check this parameter before buying or clarify this information from the sales assistant when buying online.

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For music

Qualcomm AptX Technology Delivers High-Definition Audio Over Bluetooth. Enginered for Excellence, Enjoy Quality Sound No Matter The Device or Where You are. With Qualcomm aptx wireless connces are no longer bound to Constraints. Immerse Yourself in Uninterrupted Audio and Stream Music to the Highest Standard.

© 2022 Qualcomm Technologies, Inc. and/or its Affiliated Companies.

This Website Is Regularly Updated, SO Product Listings May Not Be Complete At All Times.

References to “Qualcomm”; May Mean Qualcomm Incorporated, or Subsidiaries or Business Units Within the Qualcomm Corporate Structure, As Applicable. Materials that are as Specific Date, Including But Limited to Press Releases, Presentations, Blog Posts and Webcasts, May Have Supereded by Subsequent Events Discepts Discept. Qualcomm Incorporated Includes Qualcomm licensing Business, Qtl, and The Vast Majority of Its Patent Portfolio. Qualcomm Technologies, Inc., a wholly-owned subsidiary of Qualcomm Incorporated, operates, along with its subsidiaries, substantially all of Qualcomm’s engineering, research and development functions, and substantially all of its products and services businesses. Qualcomm Products Reference on this Page Are Products of Qualcomm Technologies, Inc. and/or its subsidiaries.

30 лет APTX. Краткая история ТОПового аудиокодека. aptX HD/aptX LL/aptX Adaptive/aptX Lossless

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APTX HD support

She, of course, is still in a shortage. Since the APTX HD is also the development of Qualcomm (like the usual APTX along with all its variations), this codec is supported only by equipment and/or Qualcomm software solutions.

And at this time, this is still-only the CSR8675 audio processor with Bluetooth 5 and the active noise reduction system through Bluetooth and the sound transmission technology of Qualcomm Truewireless Stereo. But also reverse compatibility, that is, APTX support, they also have.

The first smartphone in which the APTX HD support was implemented was the G5 from LG, with the release of which the South Korean company actually launched and headed the process of promoting a new codec on the market of mobile devices of user class.

XIAOMI MI Bluetooth NECKBAND Earphones //Премиальные беспроводные наушники с aptX

APTX HD also operate LG V20, The LG G6 and LG V30 models. Following LG, they actively undertook to introduce APTX HD and other brands. In particular, Sony (smartphones Xperia XZ1 and XZ1 COMPACT), OnePlus (smartphones OnePlus 3, 3T and 5), as well as ShaRP, LUNA, as well as a number of Chinese manufacturers of Android Smartphones.

LG G6 and Audio-Technica wireless with AptX HD Codca support

On the other hand, that is, on the part of reproduction devices, AptX HD you can find in the headphones of Sony, Audio-Technica, LG and other less eminent brands.

The number of such devices will grow as manufacturers will produce new models. And they will release them, since AptX HD, as we have already found out, really allows you to improve sound quality. But how much, in each individual case it has to be determined by the user on his own.

Wireless HD Audio

Qualcomm AptX HD Was Designed to Anterowing Demand for High Resolution Audio. This Enhanced Codec Supports 24-bit Music Quality Over Bluetooth. This Means Listeners Caner Even The Smallest Details in Their Music.

Wireless HD Sound

APTX HD IS Designed to Deliver 24-bit wireless HD Audio Wirelessly Over Bluetooth

High Signal Output for Amazing Sound

AptX HD HAS Been Engineered to Improve The Signal-to-Noise Ratio, Resulting In Lower Background Noise

Minimal Sound Distortion

With Lower Total Harmonic Distortion (Thd) and No Audio Artefacts You Enjoy Your Music with Hardly Anterference

Meet the AptX Family

AptX Audio Technologies Are Designed to Provide Great Sound for Music, Calls and Ussed by Many of the World’s Finest Smartphones, Speakers, Soundbars, Headphones and Earbuds. Just Look Out for the Aptx Badge, It Means You’ll Enjoy a Great Wirelas Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audiles Audireles Audiles Audireles Audiles Audireles Audiles Audiles Audiles Audiles Audireles Audiles Audireles Audiles Audilets.

Qualcomm aptx is a Product of Qualcomm Technologies, Inc. and/or its subsidiaries.

© 2022 Qualcomm Technologies, Inc. and/or its Affiliated Companies.

This Website Is Regularly Updated, SO Product Listings May Not Be Complete At All Times.

References to “Qualcomm”; May Mean Qualcomm Incorporated, or Subsidiaries or Business Units Within the Qualcomm Corporate Structure, As Applicable. Materials that are as Specific Date, Including But Limited to Press Releases, Presentations, Blog Posts and Webcasts, May Have Supereded by Subsequent Events Discepts Discept. Qualcomm Incorporated Includes Qualcomm licensing Business, Qtl, and The Vast Majority of Its Patent Portfolio. Qualcomm Technologies, Inc., a wholly-owned subsidiary of Qualcomm Incorporated, operates, along with its subsidiaries, substantially all of Qualcomm’s engineering, research and development functions, and substantially all of its products and services businesses. Qualcomm Products Reference on this Page Are Products of Qualcomm Technologies, Inc. and/or its subsidiaries.

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What is APTX HD?

This is a Bluetooth-audio codec capable of transmitting audio 24 bits / 48 kHz with a “light” compression coefficient of 4: 1 at 576 kb / s. And again the numbers, but now they will be useful to us. First of all, an audio stream of higher quality can be sent by means of APTX HD without stopping the transmission of flow or increasing the delay. Files 24 bits / 48 kHz are actually HD files that people with expensive wired headphones value and in which a background noise is minimized, and each individual batch sounds clearly. Phones, such as representatives of the LG V line, can send high.quality audio through connector 3.5 mm, but the mentioned numbers have practically reached the mark, at which the return is reduced when the level of 24 bits / 48 kHz is reached.

The difference between an audio flow of 24 bits / 48 kHz, going through a wired connection and in Bluetooth. in compression. APTX HD offers an improved compression algorithm than a standard APTX (therefore, a “light” coefficient), but any compression eventually gives a buzzing and whistle. You heard this effect, without even realizing this-the Rock Hitarists are used to the extreme value to make the sound of guitars more “heavy” and “loose”, and this works. The compression used in the APTX HD was specially developed in order to avoid such a distortion of sound, but the noise is still added.

The last difference is the most important. APTX transfers audio at a speed of 325 kbps, and AptX HD. 576 kbit /s. The greater the throughput, the more information will be sent, which means the absence of the need for strong compression, or, as we can see by example with AptX HD, can be used relatively more “light” algorithm.

Where to find AptX HD

This codec is not supported by all devices. It was developed by Qualcomm, like APTX with all its variations, and its use will require proprietary software and hardware of the company. Their current top-end solution, a single-chip microprocessor CSR8675 Bluetooth Audio, supports APTX HD, Bluetooth 5, active noise reduction in Bluetooth and Stereo-Technology Qualcomm Truewireless. Like any “iron” with AptX HD support, it is also compatible with APTX.

The first sold with APTX HD support was LG G5. LG became a pioneer of this movement and therefore the mentioned codec can be found in the V20, G6, V30 devices. Sony included it in the Xperia XZ1 and XZ1 Compact, OnePlus. in model 3, 3T, 5. Many less well.known manufacturers followed their example.

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From the point of view of listening equipment, AptX HD is supported by Sony, Audio Technica, LG and other brands. The codec provides relatively better sound without any additional participation of manufacturing companies that use it in their devices. Therefore, the list of supported devices will grow.

What can not be said about the Code of Sony LDAC (Losless Digital Audio Coding). The technology in characteristics exceeds the solution from Qualcomm, but for some reason Sony continues to keep the range of mystery around it and refuses to license it to other users. If it is interesting, then the next material will be dedicated precisely by LDAC features.

In general, for a long time I was skeptical of the Bluetooth lobby, I considered them a temporary measure for playing sports and no more. Acquaintance with more expensive wireless copies changed this opinion. The final argument “For” was the difference in the sound of inexpensive Xiaomi wireless sports headphones on OnePlus 5 in the use mode of the AptX HD codec mode. Therefore, I cannot consider myself 100% adherent of one of the mentioned approaches. How do you feel about Bluetooth gategers and AptX HD? Do you consider support for this codec significant advantage?

The ban on flights with MacBook Pro 15 inches and other Apple news

The irony of our lives is that Apple fans were released relatively Note7 tons of fire jokes, but are now forced to be silent, since their hero was exactly the same history. Let me remind you that Apple officially admitted that the 15 inches MacBook Pro, released from September 2015 to February 2017, are subject to batteries and they cannot be used. Apple service centers will be replaced for free of charge if your laptop falls under the program.

The US Federal Civil Aviation Administration (FAA) officially issued a ban on transportation both in hand luggage and in the baggage of such laptops. The owners do not rely on any compensation, they must themselves be aware that they are being taken a dangerous technique. It remains for me the question of how to check laptops at the airport, since, in addition to viewing the model number in the settings, this cannot be done in any way. Since the ban only entered into force, we have not yet heard the heartbreaking stories from passengers, but still ahead. Battery replacement in the service center. good way out, but then you will have to carry all the documents with you that you made such a replacement. In general, the situation is understandable, but the responsibility lies with passengers, because if they violate the ban, then all expenses for the emergency situation on board the aircraft will have to be carried by them. And this is often not even tens of thousands of dollars, but large amounts. Emergency landing and the like.

How Apple laptops burn? Yes exactly the same as any electronics with defective batteries. We have the opportunity to see this firsthand, for example, Steve Gagne showed the consequences of the fire, the laptop simply lay on the table and was not connected to the power source.

In 2017, the 2015 model caught fire while Daniel Dourvaris, at first, turned off, then hissed, and knocked down white smoke. The result is sad. Strong burns of hands, although Daniel managed to throw off the laptop from the table to the floor. See what this laptop looks like after a fire.

There are enough such cases, but in Apple they are recognized only at moments when the pressure becomes noticeable, and always after the models go from the sale. So it was this time, the company recognized the problems only after years. This is Apple’s corporate style, which leads to consequences, as in photographs above. Not a single manufacturer is safe from such cases, but for some reason there is no world story around Apple that such a huge number of laptops contain such a dangerous marriage. According to various estimates, this is up to a million laptops from the risk group. Seriously? Not that word. And puffing a laptop can be much brighter than any smartphone. How the battery burn aluminum, you saw it is scary.

Another news is that it perfectly demonstrates how they are used to working in the market, and it is funny. The Israeli company Corephotonics appealed to the court due to patent violations. In 2012, Apple engineers considered the possibility of working with the company and gained access to all developments, prototypes and the like. Also in 2014, the company provided Apple access to development tools. In 2016, when the first iPhone with two cameras appeared, Israeli engineers studied the device and came to the conclusion that their technologies were used in it. The first lawsuit against Apple was filed in November 2017, the second lawsuit. In the spring of 2018. At the moment, Corephotonics claims have been filed by all iPhone, which use two cameras.

Samsung acquired a special piquancy of the situation at the end of 2018 for 150 million, Corephotonics, but nowhere was it said about this. It looks like an attack on Apple, which has high chances of success. If Corephotonics will win claims, then Apple will not only pay fines, but licensing technologies, which will give constant and guaranteed income for both Corephotonics and Samsung. And this, apparently, is not the only Samsung transaction of this kind, the attack on Apple turns gradually and in many directions. At the same time, we know that legally Apple is very weak, she lost the big patent war of Qualcomm and was forced to agree to all the conditions of this company. The imaginary power of Apple lawyers. This is part of the company’s appearance, especially since at the time of Steve Jobs, his vision was firmly introduced in the DNA of the company: “We were never ashamed to steal great ideas” (in the original “We have Always Been Shameless ABOUT STEALING GREAT IDEAS”). And if Jobs’s charisma stopped many from being sued with Apple, then Tim Cook does not scare anyone, he has no rage, he has no character for this. And the fact that Apple consistently loses the courts, gives a green light to everyone who had doubted their chances before. Apple attack in the legal field will only gain momentum. And what we see is only the beginning. The system crisis inside Apple is manifested varied, this is one of these manifestations. They can’t do business as before, and this is a fact.

For me, the question remains how the sales of new iPhone in Tverskaya will be repaired by CSTORE, it should become beautiful and new. Apparently, the queues will be collected in this place, but will it not turn out like a year ago, when the entire line in RE: Store consisted exclusively of those who wanted to sell a place, and the first “buyer” of the past was a little soften and did not have money for the phone. It was very ironic and funny, the Apple icon faded greatly after these events. This year the office wants to take a revenge and put dust in the eye. But I can predict the failure of this idea in advance, it is better to refuse it in advance. It is better to focus on Apple friends that they should praise a new generation and the need to buy it. I wonder how they can explain 64 GB of memory in the flagship of 2019-2020? Here you can explain such a volume of memory that it is discussed for the basic options for the iPhone this year? For me this is some kind of failure, otherwise I can’t name. Especially against the background of competitors, where the basic version takes 128 or even 256 GB. Vanguyu that sales of new iPhone will set a new anti.record, which is logical with this approach.

5G in canceled one edition, and everyone believed. deja vu

Without doubt, the 5G topic is key to the market, and in the media, public field it is one of the most discussed, all who is not lazy about the fifth generation of communication is said about the fifth generation. And this is normal, since the topic is hot. Last week, the Vedomosti newspaper came out with an editorial, which states that 5G at frequencies, which is needed in, since they are occupied by the Ministry of Defense and the special services.

The next day, a column comes out, which already politically covers this question that the state does not choose the people at all, but the support of the security forces, and then the plate hackneyed to the holes. Why “Vedomosti” create such an informational occasion, out of ignorance or on purpose, I do not know. But I can accurately say that over the past years nothing has changed, and all these speculations around 5g are no different from those for 3G or 4G.

For example, we can recall how nine years ago the question of the development of 4G networks in them did not exist then. The frequencies necessary for the development of 4G, at that time belonged to the military, as well as the FSO, the converting of frequencies seemed impossible to many. At the level of “common sense” of the layman to imagine that the Ministry of Defense or special services will give something to their private companies, it was impossible. Attempts to appeal to the situation with 3G, which was completely similar, stumbled upon rejection, they say, everything was completely wrong there, but now everything is different differently. Why otherwise? How else? There was no answer to these questions.

Farther. more. For 4G, frequency conversion was successful, dancing around the frequencies, the cost of conversion took a total of several years. But real frequency clearing began only at the moment when the operators were really ready to build networks and develop them. No one gave the frequency in advance, it was illogical.

You can not remember how it happened then. Is it possible. It can be assumed that the government, which made a bet on the development of the telecom, suddenly began to change its own decisions, although the last twenty years it goes exactly one rate, without turning anywhere, in the aspect of the telecom market. All this can be assumed? But then you still need to believe in Martian that they work in a neighboring shop by sellers and gradually zombie the audience.

At the moment, operators are not ready to build 5G, although in words they are simply eager for this market. For 5G there are no economic scenarios yet, no one in the world knows how to make money on such networks, and existing networks only prove this in practice. Strive to launch a 5G network at all costs illogical. As well as there is no need to clear the frequency today, no one will use them. This is a pragmatic approach that we saw when 4G launches in how you can forget about it, I don’t know. A stuffy sensation that the “Vedomosti” launched is bad that she draws this story in a completely different light than is actually.

I will give such an analogy. You started building a house, there is someone else’s barn on your site, it needs to be demolished. You will only build a house in two years, but you already want this barn to be demolished, since you do not need it. Why? Don’t know. Just want. And its current owner reasonably says that he will do it with pleasure, but only at the moment when you are ready for construction and you really need this place. That’s the same with operators, they are not ready to build in reality massively 5G, which means they do not need frequencies yet.

Material of the diaphragm

Despite the fact that manufacturers often lead to the use of exotic materials as a justification of the allegedly outstanding sound of their headphones, one use of beryllium or carbonism is not enough for the model to sound good. However, if solid manufacturers use advanced materials in those headphones, on the sound setting of which they spend a lot of time and means, then the newly.minted brands simply strive to loudly declare the presence of membranes from unusual alloys or nanomaterials inside their models, and in order to correctly configure the sound They lack knowledge or experience. So it is better to trust an experienced brand and proven solutions. Reinforcing headphones are not so often found in a wireless format, but in their case it makes sense to make a choice in favor of models with a configuration of not more than two lanes.

Corps material and acoustic design

Everything is simple here. the tougher and stronger the material of the case will be, the greater the volume will be able to develop headphones, and the overall sound quality will win. As for the acoustic design, almost all dynamic wireless models use closed design, rare exceptions are designed for home use.

TOP-5 Bluetooth codecs-which codec is better?

All Bluetooth codes are compression algorithms with losses.

  • The signal is divided into several frequency stripes (in different codecs their number is different) and quantum with constant or different bitterness.
  • When compressed, part of the information is “cut off”, part is added.
  • The mistakes and noises of quantization are transferred beyond the boundaries of human hearing if possible: to frequencies, which are often absent after “unpacking”.

LDAC and DSee HX

Sony has another interesting technology that should be mentioned. Sony audio products are now supplied with appsling technology DSee HX, and it is even included in some wireless headphones and columns of the company.

Sony DSee HX is a signal processing technology that is trying to restore files compressed with losses such as mp3 or data stream via Bluetooth. For this, some software cunning is used, based on data collection from real audio.emergency. But, it is obvious that it is impossible to completely and accurately reproduce the lost data. Nevertheless, although LDAC is Lossy Code, it still retains some high-frequency data, although with less detail. The use of these data, which are not available in files with a higher compression degree, should expand the capabilities of Sony DSee HX. So this should be taken into account when choosing any products with LDAC.

Sony engineers say that they cannot find the difference between Hi-Res audio files and increasing sampling LDAC DSEE HX. But, obviously, we must check it ourselves.