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What is the best way to listen to music on your car smartphone? Part 2

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What is the best way to listen to music on your car smartphone? Part 2

What are the benefits of connecting a USB cable and listening?

If you connect a USB cable to listen, you can upload your smartphone at the same time you play music. Therefore, you do not have to worry about running out of battery on your smartphone, even if you play music for a long time.

In addition to better sound quality than Bluetooth, there is less delay time. For example, when watching a video in a car, the image and sound may not be synchronized with Bluetooth, but with USB, the gap is small.

What are the disadvantages of connecting a USB cable and listening?
Since a cable is required, the audio area tends to be crowded. If it is too long, the pendant cable will not only be neglected, but can also be trapped on the gear lever or on the steering wheel, which is dangerous.

Connect and play with the voice entry (AUX)
If you are using a smartphone with a headphone connector and the navigation or audio system of the car has a hole to connect the AUX terminal, you can use this connection method using the cable for the AUX connection.

This is a method for connecting a smartphone directly to the audio system of a car. The price of the aux cable varies from one pin to another, but you can listen to good quality music for about 1000 yen.

What are the benefits of connecting an audio input (AUX)?
Like USB, AUX has a cable connection, so it does not have a load function. However, since it is a dedicated audio terminal, you can enjoy music with a better sound quality.

If you want to focus on sound quality, the AUX connection is the most recommendable.

What are the disadvantages of connecting the audio input (AUX) to listen?
As with USB cables, it is filled with more cables around the audio. Also, if you want to load at the same time, you will need more cables. The USB cable can be used for both domestic use, but the AUX cable is rarely used, so it is a nuisance to prepare it for the car.

In addition, recently, some smartphones do not have a headphone connector, so there is a tendency to prepare many things.

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What is the best way to listen to music on your car smartphone?

Compare Bluetooth, USB, FM and more transmitters!

How to listen to music on your smartphone by car?
Connect and play through Bluetooth
Connect with a USB cable and play
Connect and play with the voice entry (AUX)
Connect with the FM transmitter and play
What to follow, the best connection method for each person
How to listen to music on your smartphone by car?

The smartphone that most people use now. Smartphones are playing an active role not only in daily life and work, but also in driving, for example, providing cars a function that allows car manufacturers to be linked to smartphones.

In addition, many people use their smartphones such as music players and many people want to listen to the songs that they usually listen while driving. There are four main ways to listen to music on your car smartphone.

Listen with Bluetooth
Connect the USB cable and listening
Listen with voice entry (AUX)
Listen with FM Transmitter
Bluetooth is the mainstream now, but some people can say that their car is not compatible with Bluetooth or that sound quality can deteriorate if it is wireless. Therefore, we will present the advantages and disadvantages of each connection method.

Connect and play through Bluetooth
The first method that I will present is to connect your smartphone to a car navigation system (or stereo of the automobile) via Bluetooth. If your car already has a car navigation or stereo system with Bluetooth, this method is the most economical.

What are the benefits of connecting through Bluetooth and Listen?
In the Bluetooth case, once the pairing is completed, the smartphone and the car will connect automatically from the next time, and the music will be played automatically when the car is turned on. ..

The best part is that you do not have to buy additional equipment. Since radio waves are omitted and music is reproduced, it is not necessary to prepare wiring as cables, and the cables do not hang into the car. As it is not necessary to enter the cable one by one, although you connect a person’s smartphone in the rear seat, for example, the cable does not go through the inside of the car and is very smart.

What are the disadvantages of connecting by Bluetooth and Listen?
Since it is necessary to have a navigation and audio system for the car that Bluetooth admits, it will be expensive to install it if it is not installed. In many cases, rental cars and shared cars are not compatible with this.

It can also be annoying to play automatically.

Connect with a USB cable and play
Many of the latest audio and navigation systems for automobiles can be equipped with a USB terminal. In most cases, this USB terminal supports not only the load, but also the audio playback. If you prepare and connect a USB cable, you can listen to music while loading.

Sound via Bluetooth: versions and codecs, do they affect the sound quality?

Sound via Bluetooth: versions and codecs, do they affect the sound quality?

Bluetooth is a wireless technology that allows, among other things, to connect headphones or portable speakers, stereo systems or sound bars to your smartphone or laptop.

There are many devices on the market today with different versions of the Bluetooth protocol and with support for different codecs. What does all of this mean, which version is the latest, we need to understand all of this, and most importantly for us, does this somehow affect the sound quality? Let’s see.

One important thing to keep in mind up front is that the Bluetooth sound technology you hear has much less impact on sound quality than the design of the device itself. If you try to test multiple wireless headphones or speakers, you will hear the obvious differences between the devices. If you test the same device, but connected with different codecs or versions of Bluetooth, the difference may not be so obvious, maybe even subtle.

Simply put, you should not base your choice solely on the Bluetooth technologies and codecs supported by the device, this is neither the first nor the second most important criteria.

Bluetooth versions

Bluetooth has improved dramatically over the years since the turn of the century, and audio compression isn’t as brutal today as it was in the days of Bluetooth 1.1 or 2.0 (when wireless headphones and earphones first hit the market). ). Let’s highlight the main technical differences between the Bluetooth versions, devices with which they can be found for sale today.

Bluetooth 3.0: The data transfer rate has increased significantly (up to 24 Mbps vs. 2.1 Mbps in Bluetooth 2.0), but the power consumption has increased.

Bluetooth 4.0: reduced power consumption while maintaining a speed of 24 Mbps.

Bluetooth 4.1: added anti-crosstalk protection when working with LTE modules installed on all 4G smartphones.

Bluetooth 4.2: higher speed and improved data transmission security.

Bluetooth 5.0: range increased 4 times, speed increased 2 times.

Bluetooth 5.1: it was possible to determine the location and direction with the utmost precision.

As you can see, the new versions primarily address data rate and power efficiency issues, which rarely directly affect sound quality. However, newer versions can improve data transfer reliability, which can allow a heavier codec, such as aptX HD or LDAC, to run at higher data rates.

So to summarize:

The Bluetooth version generally does not directly affect the sound quality.

Both devices must support the Bluetooth version and specific codec.

The difference between different codecs on the same device can be subtle.

AAC is only meaningful to Apple, not of interest to Android.

aptX and other codecs, on the other hand, are not supported by Apple devices.

Wireless technology shouldn’t be an important consideration when choosing an audio device. Don’t automatically rule out headphones without the latest Bluetooth version or with SBC only, they may sound better or be more comfortable than their competitors.

What you need to know about listening on Bluetooth headphones

What you need to know about listening on Bluetooth headphones

Harald Bluetooth IBluetooth is the wireless transmission of data between two devices in a short distance. This is done using radio waves (WPAN).

Few know that the name of Bluetooth technology comes from the name of the Danish king Harald Bluetooth I (958 AD). It was he who brought together parts of Norway and Denmark. And the Bluetooth symbol itself denotes the Scandinavian runes B and H.

So to transfer music via Bluetooth 3 factors are required:

Sampling frequency (kHz): the higher the sampling frequency, the clearer the sound can be transmitted (closer to digital). Distortion in sound is reduced and the audible frequency range is widened.

Sampling depth (bits): The higher the sampling depth, the higher the resolution of the music. Dynamics increases as the range between soft and loud sounds increases. In this way, it is possible to obtain more subtle sound levels and tonal nuances.

Bit rate (kbps) – This is the connection speed at which music audio data is transmitted from the device to the headphones. However this is not entirely true. More precisely, this value indicates the possible size of the amount of data transmitted at a given time. The higher the baud rate with the Bluetooth headset, the more data (at the same time) the device can transfer. Therefore, the audible sound is greatly improved.Better Bluetooth audio: what aptX, aptX HD and LDAC are all about

What do the abbreviations aptX, pptx HD, and LDAC mean?
These abbreviations are for Bluetooth codecs and mainly describe various transmission parameters. They differ in sample rate, sample depth, and bit rate. Android 8.0 devices support these audio codecs and you can enjoy better sound quality.

atpX is the slowest option for wireless music streaming. This technology provides a maximum bit rate of 352 kilobits per second at a sample rate of 48 kHz and a sample depth of 16 bits. The analog signal is read 48,000 times per second and stored with 16 bits. In principle, these are solid numbers. In comparison, a CD is read and stored with identical parameters. However, relatively slow streaming results in a nearly 50% loss in audio quality. So the sampling depth is only 8 bit, which is related to the resolution of the music.

The AtpX HD also has a sample rate of 48 kHz, but the digital signal is stored at 24 bits. The dynamic range is increased, resulting in higher quality sound. The use of LPCM (Linear Pulse Code Modulation) results in lossless data transmission from analog to digital signal. The sound is thus clearer.

PCM is a modulation technique that converts an analog signal into digital. The CD receives the analog sound waves from the music recording.

Best Bluetooth audio: what aptX, aptX HD, and LDAC are all about
Sony H. EAR on wireless
It is not yet known to what extent the bit rate in this codec is adapted only for the best sound transmission in headphones.

Sony’s LDAC Bluetooth codec is the best and fastest of the three wireless audio capabilities.

At data rates of less than 1 Mbps at a sampling rate (96 kHz) and a sampling depth of 24 bits, almost CD quality is achieved.