ASI6644 and ASI6640 - PCI Express Sound Cards

Providing 12 play streams that are mixed to 4 balanced stereo outputs and 8 record streams fed from four balanced stereo inputs, the ASI6644 and ASI6540 feature AudioScience’s unique “anything to anywhere” mixing and routing.

The ASI6644 provides both balanced analog and AES/EBU inputs and outputs. The ASI6640 has analog I/O only.  The maximum analog input and output level is +24dBu.

A choice of uncompressed PCM, MPEG layer 2 and MP3 is available for both recording and playback. All compression is handled by an on-board floating point DSP, allowing the host computer to focus on other tasks.

ASI6644 and ASI6640 functionality includes MRX multi-rate mixing technology which allows streams of different sample-rates and formats to be mixed digitally. TSX time scaling allows compression/expansion of any or all playback streams in real time with no change in pitch.

For emerging surround sound applications, SSX2 mode allows multichannel streams of up to 8 channels to be played, recorded and mixed.

FEATURES

• 4 or 12 stereo/mono streams of playback into 4 stereo outputs
• 4 or 8 stereo/mono streams of record from 4 stereo inputs
• PCM, MPEG-L2 and MP3 formats with sample rates to 96kHz
• MRX technology supports mixing of multiple formats and ratesli>
• TSX time scaling by up to +/-20%
• SSX2 mode for multichannel record, playback and mixing
• Balanced stereo analog I/O with levels to +24dBu
24bit ADC and DAC with 110dB DNR and 0.0015% THD+N
• AES/EBU I/O with sample rate converters on all inputs (ASI6644 only)
• Dedicated AES/EBU and Word clock Sync input (ASI6644 only)
• Short length PCI card format (6.6 inches/168mm)
• Up to 4 cards in one system
• Windows 7, XP, Server 2008/2003, Linux, and OS X software drivers available