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Downloaded over One Million Times
Orban PC Products aacPlus Windows Media Plug-in

Tempe, Arizona, April 11th, 2007 - Circuit Research Labs, Inc. (OTCBB: CRLI.OB), parent company of CRL Systems, Inc. dba Orban/CRL announced today that that its Windows Media Plug-in for the Coding Technologies aacPlus v2 audio codec recently received its one millionth download. Orban PC Products will be on display at the National Association of Broadcasters Convention in Las Vegas April 16th-19th, 2007.

The Orban Coding Technologies AAC/aacPlus Player Plug-in is a free, full-featured Microsoft DirectShow component that enables aacPlus audio files and streams within Windows Media Player. Standardized as MPEG4 HE-AAC v2, aacPlus v2 is a superset of the AAC codec that utilizes Coding Technologies' Spectral Band Replication (SBR) and Parametric Stereo (PS) audio compression technologies to provide CD-quality audio in a footprint four to six times smaller than content encoded with MP3 (MPEG Layer-3) technology. Digital television and radio broadcasters take advantage of aacPlus to deliver high-quality audio streams while dramatically reducing bandwidth costs.

According to VP of Development, Greg Ogonowski, the plug-in, which was released at the 2006 Spring NAB, passed 1,000,000 downloads in less than a year. Ogonowski states that emerging IP markets where bandwidth is still a premium, including Eastern Europe and Southeast Asia, are the biggest users of the plug-in.

The plug-in has been credited with helping to improve sales for Orban's PC Product Division and has succeeded in putting Orban's name on desktops all over the world.

About aacPlus
aacPlus is an audio codec developed by Coding Technologies which delivers high-quality 5.1 multichannel audio at 128 kbps, near CD-quality stereo at 32 kbps, and FM quality stereo at 24 kbps. It is widely adopted by many international standardization and proprietary bodies including 3GPP, MPEG-4, ISMA (Internet Streaming Media Alliance), DVB (Digital Video Broadcasting), the DVD Forum, Digital Radio Mondiale, HD-Radio and MediaFLO.

Coding Technologies

Coding Technologies is a privately held company with offices in Sweden, Germany, and Silicon Valley. Founded in 1997 in Stockholm, the company later merged with a spin-off of the renowned Fraunhofer Institute in Germany, the inventor of MP3. Coding Technologies' customers include America Online, EMP, iBiquity Digital, KDDI, mmO2, Nokia, Orange, RealNetworks, SK Telecom, Sprint, T-Mobile, Thomson, Texas Instruments, Vodafone, and XM Satellite Radio. For more information, visit www.codingtechnologies.com.

Coding Technologies provides the best audio compression for mobile, broadcasting, and Internet. SBR (Spectral Band Replication) from Coding Technologies is a backward and forward compatible method to enhance the efficiency of any audio codec; putting the "PRO" in mp3PRO and the "Plus" in aacPlus. Parametric Stereo from Coding Technologies and Philips again significantly increases the efficiency of audio codecs for stereo signals at low bit rates. Products from Coding Technologies are fundamental enablers of open standards such as 3GPP, 3GPP2, MPEG, DVB, Digital Radio Mondiale, HD Radio, and the DVD Forum.

About Circuit Research Labs, Inc.
Circuit Research Labs, Inc. is a manufacturer of high-quality digital and analog audio processing, transmission encoding, and noise reduction equipment. Circuit Research Labs, Inc. is in the market for radio, TV and Internet audio processing. As technology evolves, Circuit Research Labs continues to innovate with state-of-the-art audio processing products for DAB, DTV and streaming media. The Company purchased Orban® in May of 2000. Orban was founded in 1970 by Bob Orban, who is the world's foremost expert in transmission audio processing for broadcast. Orban leads the industry in the design and manufacture of audio processors for radio, television and Internet broadcasting. Recognized for its standard-setting Optimod® digital audio processors and the Opticodec® codecs, the Orban name has become synonymous with reliable, high performance products. Today, its versatile audio processing equipment and codecs are the products of choice in fast-paced production environments worldwide.

For more information contact David Rusch at phone +1 (480) 403-8300, fax +1 (480) 403-8301 or e-mail: drusch@orban.com. Information is also available at www.orban.com and www.orban-europe.com.

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