AUDIOTRIX PRO The audio performance standard for the PC has been raised again with the introduction of the AUDIOTRIX PRO. This brand new sound card is based on the Yamaha OPL4 chip set which contains Wave Table and FM synthesis. Wave Table is based on the digitized recordings of actual instrument sounds while FM synthesis is based on the manipulation of sine waves. The AUDIOTRIX PRO permits 24 voices of Wave Table sound and 20 voices of FM sound to be output simultaneously. The result is a new height in audio performance that has no equal in the PC marketplace today. In addition to Wave Table and FM synthesis, the AUDIOTRIX PRO also includes a standard General MIDI voice bank on a 2Mbyte mask ROM and a 16-bit 48KHz full duplex audio codec which provides a complete MPC and Microsoft Windows Sound System solution while remaining backward compatible with the original industry standards Ad Lib and Sound Blaster. Upgradability is built into the Audiotrix Pro with such expansion as DSP/Effects Processing, Sample RAM/ROM and multiple CD-ROM interfaces. PRODUCT FEATURES Functions - Full compatibility with Ad Lib adapter in hardware - Full compatibility with Microsoft Windows Sound System adapter in hardware - Full compatibility with Roland MPU-401 adapter in hardware (UART mode) - Full compatibility with Sound Blaster adapter in hardware - Full compliance with General MIDI specifications - Exceeds all Multimedia PC (MPC) Sound Adapter specifications Sound Quality - High quality audio with overall signal-to-noise ratio exceeding 90 dB - Wave Table synthesis: 24 independent stereo channels of 8, 12 or 16-bit waveform data with 16 levels of pan for each voice. - Voice output data sampling frequency is 44.1 KHz and a 2 Mbytes standard General MIDI voice bank is included - FM synthesis: 20 independent stereo channels of FM synthesized sound with 4 operator FM synthesis using 8 different waveforms for enhanced instrument sound - 16-bit stereo FM DAC - 16-bit full duplex stereo sampling DAC accepting 16 and 8-bit data with over 90 dB dynamic range. The CODEC uses 1-bit Sigma-Delta quantization along with 64 x oversampling and noise shaping to achieve maximum signal-to-noise ratio. - 0-22KHz frequency response at 48 Khz playback rate - Mixer integrated in the CODEC for maximum signal-to-noise ratios - Stereophonic output with software programmable volume controls - Extremely low THD (Total Harmonic Distortion) with ratings below 1/10 of 1% - Along with low-chip count ASIC-centered technology, the Audiotrix Pro is assembled using the latest double-sided surface mount assembly techniques, bringing superior quality and real CD sound to the electrically noisy PC environment Features - Onboard Yamaha OPL4 44 voices Wavetable/FM Synthesizer - Onboard 16-bit Full Duplex 48KHz Sampling and Playback CS4231 CODEC by Crystal Semionductor - Complete setup by software, no hardware jumpers to adjust - Upgradable to professional effects processing with DSP/Effects Processor - Upgradable with Sample RAM/ROM expansion for additional MIDI instruments - Upgradable to multiple CD-ROM interfaces for free choice of CD-ROM drive - Microphone input for voice recording - Line input for stereo recording from analog sound sources - MIDI input and output through MPU-401 interface for external MIDI device, with ability to disconnect the Audiotrix Pro OPL4 Synthesizer from the MPU-401 MIDI port at will - IBM standard game port for all popular analog joysticks, with support for dual joysticks - CD-ROM-In connector for Internal CD-ROM audio cable connection - Line-out connected to power amplifier of 4 watts per channel at 4 ohms - 3 Expansion connectors which permits simultaneous use of SCSI CD-ROM or proprietary CD-ROM interfaces, DSP/Effects Processor or DSP/Effects Voice Processor module and Sample RAM/ROM expansion daughterboards - Cross Platform device driver availability for all these common PC operating systems: DOS, Windows, OS/2, Windows NT, NeXTStep, Linux and many other UNIX flavors TECHNICAL SPECIFICATIONS Wave Table and FM Synthesizer by Yamaha (YMF278-OPL4) - Stereo Output of up to 24 simultaneous voices with 16 levels of pan for each voice - Sampling frequency of voice data is 44.1 KHz, up to all 24 voices - Waveforms data length is 8, 12 or 16-bits - 2 Mbytes YRM-801 Yamaha ROM memory chip containing a complete General MIDI voice bank including 128 melodic sounds and 47 percussive sounds. ROM memory is packed using Yamaha's Advanced Wave Memory techniques (equivalent to 2.8 megs unpacked) - Advanced Algorithm FM synthesizer - Stereo sound generators - Register compatible with OPL2(YMF3812) and OPL3(YMF262) synthesizer LSI - 36 slots (sine wave generation circuits) - 18 simultaneous instrument sounds or 15 instruments and 5 drum sounds in 2 operator mode - 6 4-operator + 6 2-operator or 6 4-operator + 3 2-operator instruments and 5 drum sounds simultaneous in 4-operator mode - 8 modulation waveforms - 2 algorithms in 2-operator mode - 4 additional algorithms when in 4-operator mode - Low frequency oscillator (LFO) for vibrato and tremolo effects - Two programmable timers - Faster register access than a YM3812 with an architecture that is optimized for the PC BUS Stereo Multimedia Audio Codec by Crystal (CS4231) - Selectable mode. Mode 1 supports PCM (16-bit or 8-bit) sampling and playback and is backward compatible with AD1848. Mode 2 adds full duplex and compression (either mu-Law, A-Law or IMA compatible ADPCM (4-bit), which brings 4 to 1 compression on both record and playback without degrading sound quality - Dual DMA Count Registers for Full Duplex Operation (simultaneous record and playback, and not necessarily at the same frequency) - DMA Transfers with on-chip 16-sample FIFO buffers (for very low host overhead) on both record and playback channels - MPC Compatible Mixer - Hardware timer for Audio/Visual Synchronization - Backward compatible with Analog Devices 1848 CODEC - Stereo 16-bit Audio Record and Playback - Supports variable sample rates (in KHz): (48,44.1,22.05,11.025,5.5125, and 12 others) - Selectable CPU (polling interrupt) mode and DMA mode - One or two DMA channels for multiplexed stereo data path or individual DMA assigned to Left and Right channels - Selectable DMA (0,1,3) and IRQ (7,9,10,11) - Selectable I/O addresses (530,604,E80,F40) Mediatrix MT0002-PC Audiotrix Pro ASIC/Micro-Controller Interface - Software I/O configuration (IRQ and/or I/O Port and/or DMA Channel) for: Game-Port; Sound Blaster; OPL2, OPL3, OPL4 LSI; DSP/effects Processors and CD-ROM interfaces - Registers emulating the Sound Blaster set of registers at their standard relocatable addresses - Registers emulating the Microsoft Sound System set of registers at their standard relocatable addresses - Registers emulating the Roland MPU-401 set of registers at their standard relocatable addresses - Micro-controller interface for the on-board micro-controller running the Sound Blaster and MPU-401 emulation firmware - Downloadable firmware to on-board RAM from the PC Host - Selectable control of the OPL4 (direct and/or through the MPU-401 interface) Miscellaneous information Other - Sample RAM/ROM expansion can contain up to 4 megabytes of mixed ROM/RAM memory for storage of additional MIDI instruments - Supported combo modes are: - General MIDI + Sound Blaster - General MIDI + Windows Sound System The suggested retail price of the Audiotrix Pro is $295 US. Mediatrix Peripherals can be contacted at: Mediatrix Peripherals Inc. 4229 Garlock Street Sherbrooke QC J1L-2C8 Canada (800) 820-TRIX[8749] (Sales) (819) 829-TRIX[8749] (Technical and/or other enquiries) (819) 829-5100 (Fax) (819) 829-5101 (BBS, v.32bis AN81) Compuserve: Go Mediatrix 74774,1335 Fidonet: AdLib conference Internet: Internet e-mail: info@mediatrix.com World Wibe Web: http://www.mediatrix.com File Transfer Protocol: ftp://ftp.mediatrix.com