Radio Autmation Software | BSI
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May 29, 2020
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ASI 6744

The ASI6744 is a professional PCI-Express sound card designed for use in radio broadcast automation. Providing 12 play streams that are mixed to 4 balanced stereo outputs and 8 record streams fed from four balanced stereo inputs, the ASI6744 features AudioScience’s unique "anything to anyware" mixing and routing.

The ASI6744 provides both balanced analog and AES/EBU inputs and outputs. 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.

ASI6744 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


  • 12 mono/stereo streams of playback into 4 stereo outputs
  • 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 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 DNR and 0.0015% THD+N
  • AES/EBU I/O with sample rate converters on all inputs.
  • Dedicated AES/EBU and Word clock Sync input.
  • Short length/half-height PCIe card format
  • Up to 4 cards in one system.
NOTE: While the audio card supports Dolby AC2, BSI software does not currently support this format. Additionally, MP3 record is only supported in Simian 1.7 and above when used with the legacy audio engine.

Data Sheet

PDF Data Sheet


ASI6744 $3495 + Cable set $420
with cable set
without cable set