Providing 12 play streams that are mixed to 4 balanced stereo outputs and 8 record streams fed from 4 balanced stereo inputs, the ASI6544  and ASI6540 both feature AudioScience’s unique “anything to anywhere” mixing and routing.

The ASI6544 provides both balanced analog and AES/EBU inputs and outputs. The ASI6540 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.

ASI6544 and ASI6540 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, SSX™ mode allows multichannel streams of up to 8 channels to be played, recorded and mixed.

FEATURES

• 4 or 12 mono/stereo streams of playback into 4 stereo outputs

• 4 or 8 mono/stereo 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 sample rates

• TSX™ time scaling by up to +/-20%

• SSX™ mode for multichannel record, playback and mixing

• Balanced stereo analog I/O with levels to +24dBu

• 24bit ADC and DAC with 110dB SNR and 0.0015% THD+N

• AES/EBU I/O with sample rate converters on all inputs (ASI6544 only)

• Dedicated AES/ABU and Word clock Sync input (ASI6544 only)

• SoundGuard™ transient voltage suppression on all I/O

• Sort length PCI card format (6.6 inches/168mm)

• Up to 4 cards in one system

• Windows 2000, XP and Linux software drivers available.