Today the industry’s first USB Audio Class 2.0 reference design for computer audio interfaces with a high number of channels to and for DJ and live sound mixers, Musical instruments and digital effects.
After USB Audio 2.0 increasingly IEEE 1394 (FireWire in audio applications replaced), both in professional and consumer devices, has XMOS now reference design presented this that on the very successful XMOS L1 USB Audio 2.0 system for a limited number of audio channels based.
The XMOS Audio USB 2.0 solutions help the developers of audio devices while, new products with the latest digital audio technology and high quality very quickly to put on the market.
If fully implemented in software based on the dual-core XS1-L2 XMOS event-driven processor supports the new reference design High-Speed USB Audio 2.0 (480 Mbit / s) and up to 18 audio bit inputs and outputs at a resolution of 24 and a sampling rate of 192 kHz. Key factors of design in the realization of high-quality audio is to use one of the asynchronous mode and the other generating a very accurate local clock signal with low jitter.
In addition, the reference design achieves an industry-leading round-trip latency of only three milliseconds, and therefore makes it an ideal solution for live music recording systems.
The defined by the software reference design flow enables users the ability to quickly adapt the solution to their specific requirements, eg, to meet specific interface requirements to implement DSP algorithms for audio enhancement or incorporate custom peripherals. To shorten the development time for a ready library of software components is available, for example, I2S, S / PDIF, and other protocols.
“This USB Audio 2.0 reference design is implemented with the technology of XMOS, developers will help in the audio industry to cope with the rising challenges of ever-shorter development cycles and tighter calculated cost, yet offers all still possibilities to the product differentiation competitors different, “said Jörg Berthold, VP Marketing of XMOS.
“Our goal is to provide our customers with flexible, robust and cost effective solutions with which they remain competitive. That’s L2 USB 2.0 audio reference design, once again a testament to this pledge.”
Key Features
XMOS event-driven, multi-threaded processor, the audio DSP capability, flexible I / O interfaces and real-time data processing included.
USB 2.0 High-Speed interface with a large number of audio channels, 24 bit resolution at a sampling rate of 192 kHz and extremely low latency (3 ms round trip delay).
Support of MIDI and S / PDIF In / Out.
- Audio class 2.0 compliant for plug & play operation with Audio Class 2 – computers
- Apple Mac OS X 10.6.4 and later has native USB 2 audio support. For Windows XP, 7, and Vista is a version of the XS1-L2 with appropriate drivers available.
- Audio Class 1.0 compliant and backwards compatible in the sense that a native Mac OS X and Windows support.
- Asynchronous Clock Generation for complete control of the audio master clocks with the result of minimal jitter and superior digital audio quality.
- Standards compliant Device Firmware Update (DFU) Loader for software updates in the field.
- More features will be available later this year with no additional hardware, such as audio mixers and ADAT.
Price and Availability
The XMOS USB Audio Class 2.0 reference design will be available in late July. The source code of the reference design is free to apply under a royalty license. The hardware schematics and design files XMOS provides on its website for download.
Source:http://www.pressebox.de/pressemeldungen/scantec-microelektronic-gmbh/boxid/363058
