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VIA sheds more light on Envy24-II, new PC audio solution

At its official website VIA Technologies published interesting information about the soon-to-be-announced Vinyl Audio PCI novelties. As you know, Envy24 and Envy24xx are widely spread in various multimedia devices, on motherboard and even PCMCIA cards.

The new controller named Envy24-II will more likely be a logical continuation of Envy24 series than Envy24xx line and will be meant for professionals: improved digital hardware mixer, higher-quality ASIO support (through "flexible DMA architecture") for more effective usage of PCI bus and reduced latencies.

  Envy24-II Envy24 Envy24HT Envy24GT Envy24MT
Max. sampling rate 192 kHz 96 kHz 192 kHz 192 kHz 192 kHz
Max. width 32-bit 24-bit 24-bit 24-bit 24-bit
Pairs of I2S/AC inputs 8 4 1 1 1
Pairs of I2S/AC outputs 8 4 4 3 1
Pairs of I2S inputs for ADC or S/PDIF 1 1 1 1 1
Digital hardware mixer 32 bit/32 channels 24 bit/20 channels - - -
WDM drivers - - + + +
I2C 4 1 1 1 1
IEC958 S/PDIF Tx 1 - 1 1 1
GPIO channels 10 8 23 16 16
MIDI port 2 2 1 1 1
PCI revision 2.3 2.1 2.2 2.2 2.2
Model name VT1732 VT1712 VT1724 VT1722T VT1720T
Package PQFP128 PQFP128 PQFP128 PQFP128 / TQFP128 TQFP128

Envy24-II specs are noticeable better than those of Envy solutions:

  • Sampling rates up to 192 kHz
  • Width up to 32-bit
  • 16 A/D inputs
  • 16 A/D outputs
  • Digital 32-bit hardware mixer for 32 channels
  • Integrated S/PDIF transmitter with IEC958 direct interface (direct data transmission to receiver by PCM, DTS, AC3 protocols)
  • 1 x SPI and 4 x I2C ports
  • 2 x MPU-401 MIDI UART ports
  • 10-channel GPIO
  • 2 x reference quartz clock generators operating at 49.512 MHz/24.576 MHz and 22.5 MHz (external clock generators supported)
  • PCI 2.3 revision
  • 3.3 V (up to 5 V) voltage

The press release mentions that the device can decode new audio formats, including DVD-Audio, in hardware. Does it mean SACD is not an exception? There´s just one problem left: to make usual DVD drives read SACD media.

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