Audio testing of BT components

Bluetooth in Automotive - Audio testing of BT components

Verifying functionality and performance of Bluetooth® components

Nearly all new vehicles today offer Bluetooth®handsfree equipment. Bluetooth® has become the established short range radio standard for communications between smartphones and infotainment systems in automobiles. The individual components must undergo RF and audio tests to ensure that the headset, speakers, infotainment system and smartphone all function smoothly with each other and are in line with the Bluetooth® SIG specifications.

Audio testing of Bluetooth® components

Audio signals can be transmitted with different Bluetooth® profiles: handsfree profile (HFP) for voice calls or advanced audio distribution profile (A2DP) for stereo playback.

To ensure correct performance, functional tests, interoperability tests and range tests need to be run. The R&S®CMW wideband radio communication testers were designed for such precertification testing and are approved by the Bluetooth® Special Interest Group (SIG).

Transmit characteristics such as power, spectrum, frequency accuracy, frequency drift, frequency deviation and the modulation index need to be verified with high accuracy. The R&S®CMW500 uses an integrated two-channel audio generator to check the Bluetooth® audio quality. It supports audio tests and all defined RF test cases. For the time-consuming spectrum measurements, the R&S®CMW testers provide first test results in less than one second – something no other Bluetooth® tester on the market can do.

  • Flexible: support of all relevant wireless standards in a single box
  • Complete: supports relevant codecs and profiles for audio transmissions
  • Quality: highly accurate data from a precise generator

Related products

R&S®CMW platform

The R&S®CMW wideband radio communication tester delivers RF tests on Bluetooth and cellular radio signals such as LTE-A, WCDMA, GSM and CDMA2000, as well as non-cellular radio signals such as WLAN, ZigBee and GNSS. The radio communication testers support all the different stages – from development and precertification to production.

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R&S®CMWrun automation software

The R&S®CMWrun automation software for running RF tests in remote control on the R&S®CMW Testers in R&D, quality assurance, production and service for both current and future wireless equipment.

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DC Power supplies for versatile automotive test applications

From R&D laboratory to production test system the highly versatile, yet compact designed R&S power supplies portfolio from basic bench model to modular high-performance product will power your tests.

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Related resources for Automotive Bluetooth®

Application brochure: Bluetooth® testing with the R&S®CMW wideband radio communication tester

For more detailed information see our application brochure.

Download now

App note: Bluetooth® Low Energy (V5.0) RF-test for internet of things applications

This application note gives you detailed information on IoT.

Download now

White paper: From cable replacement to the IoT Bluetooth 5

This white paper summarizes the various Bluetooth technologies.

Download now

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