Keysight Technologies Introduces Next-Generation Performance Audio Analyzer with Voice-Quality Analysis and Wide-Bandwidth Options


SANTA ROSA, Calif., Sept. 15, 2014

Keysight Technologies, Inc. today announced the U8903B performance audio analyzer, the next-generation model of the U8903A. The U8903B is extremely flexible with configurable options such as speech and voice quality measurements, extendable bandwidth and digital audio interfaces, enabling engineers to accurately test wireless communication, component and integrated circuit (IC) audio applications.

The U8903B offers the ITU-T standard perceptual objective listening quality assessment (POLQA) and its predecessor, perceptual evaluation of speech quality (PESQ), supporting measurements in the common audio bandwidth carried by telephone networks, and with POLQA, super-wideband speech signals up to 14000 Hz. With POLQA and PESQ, the U8903B is suited for testing 3G, 4G/LTE and voice-over-internet-protocol (VoIP) phone and network equipment as well as high-definition voice test applications.

For component and IC testing, the U8903B comes with a wide-bandwidth option, expanding the upper limit of the measurement bandwidth to 1.5 MHz with 24-bit resolution and one million point FFT. This expanded bandwidth allows the audio analyzer to maintain high accuracy, even when monitoring Class D amplifiers or switching supplies, which often produce signal spikes far outside the bandwidth limit of conventional audio analyzers (100 kHz or less). The U8903B also comes with AES3/ SPDIF and DSI formats to test and validate consumer electronics and digital audio ICs.

The U8903B offers test engineers the option of choosing two, four or eight channels, and enables accurate distortion measurement with an improved low residual THD+N of less than -110 dB, a performance that is available for all eight channels. The test sequence control function automates testing by allowing users to set up the types of measurements and define pass/fail decisions for each test parameter. This new function saves time and removes the need to write complicated code during product development.

"The U8903B is accurate, configurable and feature-rich," said Ee Huei Sin, vice president, Keysight's General-Purpose Electronic Measurement Division. "With this audio analyzer, Keysight continues to provide high-performance tools to engineers and technicians."

U.S. Pricing and Additional Information

The U8903B performance audio analyzer is available worldwide. U.S. prices are as follows:

U8903B performance audio analyzer


Performance audio analyzer, 2 channels


Measurement channel options


Analog analyzer, 4 channels



Analog analyzer, 8 channels



Digital audio card


Software Options (fixed perpetual license)


Wide bandwidth option -1.5 MHz



POLQA measurement software



POLQA and PESQ measurement software



AES3/ SPDIF and DSI digital audio


More information on the Keysight U8903B is available at Images of the wide-dynamic power sensors are available at

About Keysight Technologies

On Sept. 19, 2013, Agilent Technologies announced plans to separate into two publicly traded companies through a tax-free spinoff of its electronic measurement business. The new company, Keysight Technologies, began operating as a wholly owned subsidiary of Agilent on Aug. 1, 2014 with a full separation anticipated in early November 2014. Keysight is expected to trade on the NYSE under the symbol KEYS.

Keysight is a global electronic measurement technology and market leader helping to transform its customers' measurement experience through innovation in wireless, modular, and software solutions. Keysight provides electronic measurement instruments and systems and related software, software design tools and services used in the design, development, manufacture, installation, deployment and operation of electronic equipment. Information about Keysight is available at

Forward-Looking Statements

This news release contains forward-looking statements as defined in the Securities Exchange Act of 1934 and is subject to the safe harbors created therein. The forward-looking statements contained herein include, but are not limited to, information regarding Keysight's separation of the electronic measurement business; future revenues, earnings and profitability; the future demand for the company's products and services; and customer expectations. These forward-looking statements involve risks and uncertainties that could cause Keysight's results to differ materially from management's current expectations. Such risks and uncertainties include, but are not limited to, unforeseen changes in the strength of our customers' businesses; unforeseen changes in the demand for current and new products, technologies, and services; customer purchasing decisions and timing, and the risk that we are not able to realize the savings expected from integration and restructuring activities.

In addition, other risks that Keysight faces include those detailed in Keysight's filings with the Securities and Exchange Commission, including our Form 10, and amendments thereto. Forward-looking statements are based on the beliefs and assumptions of Keysight's management and on currently available information. Keysight undertakes no responsibility to publicly update or revise any forward-looking statement.

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Janet Smith, Americas
+1 970 679 5397
Twitter: @KeysightJSmith

Sarah Calnan, Europe
+44 (118) 927 5101

Connie Wong, Asia
+852 3197-7818