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Driverless 24-bit / 96kHz Audio
Interface Based on TI's TAS1020B chip
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Applications
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The following products
would benefit from incorporating this solution:
- Digital to Analog converter products
- Audio Recording Interfaces
- Electronic Musical Instruments
- USB Guitars, Basses
- Digital Effects Pedals
- Control Surfaces
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Who uses this solution
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CEntrance licensed
this solution to a number of companies in the Pro Audio
and Hi-Fi industry segments, including such major players
as Benchmark Media Systems, Belcanto, Lavry, Empirical,
and PS Audio. All companies have successful products
on the market featuring this solution.
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Technology
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The TAS1020B USB device
controller from Texas Instruments is easy to connect
to most DAC and ADC chips. It features a standard I2S
digital audio interface and contains an 8051 CPU. CEntrance
invested over two years of intense engineering effort
to develop unique, custom firmware for this chip enabling
transfers of 24-bit/96kHz audio over the built-in USB1.1
interface. CEntrance learned how to send and receive
high-resolution audio data and still maintain compatibility
with native audio drivers that ship with major operating
systems. The end result is precise, bit-for-bit audio
performance - the algorithm adjusts to the incoming
sample rate and efectively eliminates resampling in
the OS, offering audiophile sound quality all the way
to the speakers.
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Unique Advantages
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Aside from low cost
in mass production, the major benefit of this interface
solution is its "driverless" nature. Windows,
Mac OS and Linux recognize 16-bit/44kHz audio devices
and install them automatically when they are plugged
in. For this reason USB headsets ship without a driver
disk in the package. Typical 24-bit/96kHz USB audio
devices however ship with drivers and require the user
to perform the extra installation step. The CEntrance
24-bit/96kHz solution eliminates this extra installation
step, simplifiying life for the customer and the product
manufacturer, while offering audiophile quality due
to elimination of resampling in the OS.
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What you get
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For this solution CEntrance
supplies the binary firmware (the code running inside
TAS1020B) and programming instructions. It is easy to
program the chip via USB.
Most clients find it
relatively easy to implement the hardware portion of
the design and do not require hardware assistance, however
CEntrance can offer consulting services in the development
of the hardware portion of the design.
CEntrance also offers
low-latency drivers for Mac, Windows and Linux, which
fully support this solution. ASIO or GSIF are required
to achieve lowest latency under Windows. Please mention
drivers and platform(s) when ordering.
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Compatibility
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- Windows 2000, XP, Vista, 7 (32 and 64-bit)
- Mac OS 10.4 and above
- Linux
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