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Außerdem steht auf Accelleras Agenda die Entwicklung einer Querverweis-Spezifikation zwischen dem IEEE-Standard ALF (Advanced Library Format) und dem Library-Format 'Liberty' von Synopsys. Liberty werde seine Stellung als De-facto-Standard behalten.

EC5745ETTS-1.8432MTR

Außerdem steht auf Accelleras Agenda die Entwicklung einer Querverweis-Spezifikation zwischen dem IEEE-Standard ALF (Advanced Library Format) und dem Library-Format 'Liberty' von Synopsys. Liberty werde seine Stellung als De-facto-Standard behalten.

In use, the system's high-level PC-based software is what helps you craft the filter performance. Once you're satisfied with your filter's response, you download the filter to the hardware module, and then execute it. The download is performed over an RS-232 serial link running at 115.2 kbits/s. The hardware is based on a Freescale Semiconductor DSP chip.

EC5745ETTS-1.8432MTR

Invisible Firmware

The associated DSP hardware module and its firmware then implements the filtering operations. The hardware even includes a stereo CODEC with 24-bit resolution, and the filter module can store up to eight filters in its non-volatile memory.

Although you might be able to do some audio filter design on a PC equipped with a 24-bit soundcard, the Signal Wizard II's dedicated hardware kicks it up a notch or two. Once configured, you can even run your filter without the host PC.

EC5745ETTS-1.8432MTR

This typical screen image shows impulse responses imported and convolved in realtime.

EC5745ETTS-1.8432MTR

Filters constructed using DSP offer advantages over conventional analog approaches to filtering,” notes Saelig president Alan Lowne. They're inherently flexible, since changing the characteristics of the filter involves changing only program code or filter coefficients. There's nothing to solder or hook up.

DSP filters—based on code—are also entirely immune to the effects of aging and environment. This makes them quite suited for very low-frequency signals, too.”

• 802.11b, 96-Mbyte flash-memory storage on PCMCIA cards

• Lao version of Debian Linux; Lao versions of KDE office apps and VoIP program

• 12-inch XVGA LCD

• Dot-matrix printer

• Includes optional moisture-sealed 802.11b radio station and parabolic high-gain antenna

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