News Archive

Support for the Opus audio format has been added to VS1005. At this first stage, VLSI offers an encoder / decoder capable of speech coding at 8 or 16 kHz. The bitrate varies between approximately 8-55 kbit/s, depending on the selected quality. Opus is now VLSI Solution's lowest bitrate speech codec.

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Today we have released a new, experimental High-Speed USB Mass Storage driver for the VS1010. This new version gives significantly faster read and write speeds than the previous Full-Speed driver.

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New videos are available on VLSI Solution's YouTube Channel. The new topics show how to soldering a BGA-24 package to a prototype board, and how to properly pack and repack VLSI's ICs.

--> To VLSI Solution's YouTube Channel

A new Ultra Low Cost VS1010 FM radio + USB DAC + SD/USB MP3 Player demo board has been released. This package is an incredibly versatile basis for many different kinds of low-cost products.

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VLSI Solution's Integrated software Development Environment VSIDE has been updated to v2.48. Libraries and .h files have been updated particularly for VS1010 and VS1005. Additionally, a new, more stable C Compiler and templates for the VS1005 multitasking operating system VSOS 3.63 are included.

--> Download VSIDE

The VS1005 operating system VSOS 3.63 has been released. Among other things, it automatically recognizes if External Flash is 2, 4, 8, or 16 MiB in size.

--> Download VSOS 3.63

A DSP algorithm, a Pitch / Speed Shifter has been ported from the VS1005 to the VS1010. The Pitch / Speed shifter allows for independent control of an MP3 file's playback speed and pitch. It can be used in various applications, including but not limited to:

• DJ usage where it is very useful to be able to control playback speed and pitch independently.
• Language learning where adjusting speed without affecting pitch is very useful.
• Audio book devices where speed control without affecting pitch is convenient.
• Karaoke devices where pitch control can be used to match the range of the karaoke singer.

The Pitch / Speed Shifter can be downloaded from the VSDSP Forum.