What is aptX?

And what is it used for?

aptX is an audio codec that enables high-quality, wireless sound transmission via Bluetooth with low latency.

In modern transmission technology, the trend is increasingly moving towards wireless solutions. The transmission of data via WLAN has long been part of everyday life. However, Bluetooth is also increasingly becoming the new standard for audio playback. The classic AUX or jack connection on smartphones is now a rarity. As a result, either headphones equipped with Bluetooth connection technology or models with USB-C are required for mobile music enjoyment.

Consumers are also increasingly turning to Bluetooth to operate their home stereo systems. As a result, the demands on the technology and transmission quality are becoming ever greater. A lot has changed in the Bluetooth standard since the end of the 1990s. In 1999, data rates of just 0.732 Mbit per second were possible, but with version 5.0, data rates of up to two Mbit per second are now possible. With the aptx codec, a wireless music experience can be delivered in combination with Bluetooth that can easily compete with wired systems.

How does aptX work?

aptX is a codec, i.e. a pair of algorithms, for encoding and decoding audio signals. The codec is already around 30 years old and was originally used at the time of the ISDN connection to improve the voice quality of telephone calls. In the field of wireless transmission of music and other audio sources, aptX is now enjoying a great deal of attention again. The codec compresses an audio signal for transmission and ensures almost lossless decompression.

What are the advantages in detail?

The aptX codec is used by well-known manufacturers for high-quality smartphones, Bluetooth speakers, soundbars, headphones, tablets and in the areas of home entertainment, car hi-fi and multi-room speakers. aptX improves wireless sound quality and enables constant, interference-free music enjoyment. Only devices that meet the highest quality requirements are authorised by the manufacturer Qualcomm to use the aptX logo.

The aptX codec provides you with high-quality music playback in stereo via a wide range of playback devices. The technology supports digital audio signals with 48 kilohertz and 16bit LPCM. This puts the standard at a similar level to CDs. Thanks to configurable equalisers, different types of music are output in the same quality and no distortion is produced even at high levels.

With aptX, latencies of less than 130 milliseconds can be realised during transmission. With the further development aptX Low Latency, this is even limited to a maximum of 40 milliseconds. With older Bluetooth standards, there can be significant delays in transmission from the transmitter to the receiver. As a result, sound transmissions on your television, for example, are now reliably lip-synchronised.

aptX at InLine

InLine offers high-quality solutions for your home entertainment and for travelling.

InLine® Bluetooth Audio Transceiver, Receiver/Transmitter, BT 5.0, aptX

The InLine Bluetooth Audio Transceiver is a sleek and compact Bluetooth audio transmitter that seamlessly streams Hi-Fi digital audio wirelessly from your TV or wired music system to your favourite pair of Bluetooth headphones or speakers. Also it´s a Hi-Fi Bluetooth music receiver that streams high quality audio wirelessly from any Bluetooth enabled smartphone, computer or tablet to any music system or powered speakers. With aptX low latency, the audio signals are transmitted with minimal delay to achieve the best possible synchronicity between audio and video content.

Bluetooth version 5.0 with aptX low latency
Supported codecs: aptX low latency, aptX, AAC, SBC
Bluetooth profiles: A2DP
Bluetooth range: Up to 10 meters
Output signal connections: TOSLINK digital optical OUT, 3.5mm AUX OUT
Input signal connections: TOSLINK digital optical IN, 3.5 mm AUX IN
Input power: 5V DC, 500 mA (requires an USB-C port as power source)
Latency: only ~ 40ms
supports multipoint streaming for simultaneous playback to two Bluetooth headphones / speakers
Mounting options: Sticky gel mounting strips, hook-and-loop tape
Dimensions: 10.4x2.3x2.0 cm

Delivery content:

InLine Bluetooth Audio Transceiver
TOSLINK digital optical audio cable (1.5m)
3.5mm AUX audio cable (1.5m)
3.5mm to RCA adapter cable (0.2m)
USB C cable (0.8m)
Sticky gel mounting strips
Manual

Item no.: 99151I

InLine® Airplane Bluetooth Audio Transmitter, BT 5.0, aptX HD/LL

The InLine Bluetooth Flight Audio Adapter transmits the audio signals of the board entertainment wirelessly via Bluetooth in highest quality to your favourite headphones, no matter if in-ear, on-ear or over-ear. The adapter is compatible with the most common one-, two- and three-pin systems and also has a USB port. The power supply is also ensured over long distances by a battery and charging case. Furthermore, the Bluetooth Flight Audio Adapter can easily be used as a battery-operated Bluetooth transmitter on audio sources with 3.5mm stereo jack output. This allows you to stream Bluetooth audio to your headphones when you are away from the aircraft.

Bluetooth: Version 5.0 with aptX HD, aptX Low Latency
Supported codecs: aptX, aptX HD, aptX LL, SBC, AAC
Bluetooth profiles: A2DP and AVRCP, GAIA, HSP und HFP
Bluetooth range: Up to 20 meters
Input: 2x 3.5mm Audio plugs, 1x USB Type-C (when connected to a PC)
Outputs: Bluetooth / Can be used with 1 or 2 Bluetooth headphones simultaneously
USB Audio Audio sampling rate: 48kHz / 16-bit / Compatible with Windows, MacOS, Linux / no driver installation necessary
Rechargeable battery: Flight Audio Adapter: 180mAh / Charging case: 900mAh
Input Power: Flight Audio Adapter: USB Type-C DC5V 500mA / Charging Case: USB Type-C DC5V 500mA (requires an optional USB power adapter)
Battery runtime: up to 6h / up to 30h with charging case
Operating temperature: -10°C - 45°C
Storage temperature: -20°C - 60°C
Supported sample rate: =48 kHz
Enclosure: plastic
Colour: black
Dimensions Adapter: 5x3.9x1.5 cm
Dimensions Charging-Case: 8x5x3,1 cm
Weight Adapter: 20g
Weight Charging-Case: 60g

SCOPE OF DELIVERY:

1x InLine Bluetooth Flight Audio Adapter
1x Charging-Case
1x USB Type-A to USB Type-C cable 1m
1x Operating instructions

Item no.: 99160I