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About FLACCL (former FlaCuda)

FlaCuda is probably a world's first CUDA-enabled FLAC encoder. It's opensource and licensed under LGPL. Newer versions of FlaCuda use OpenCL instead of CUDA, adding support for AMD GPUs. Current version is FLACCL 0.3, published November 25th 2010.

Speed Comparison

Compared to reference flac 1.2.1 on Core i7 940, it runs approximately 10 times faster on GeForce GTX 285, when using higher compression ratios (modes -7, -8). FlaCuda -8 is faster than flac -0, and provides better compression than flac -8. Thanks to case@HA for the graph:


On this graph X-axis is compression ratio, Y-axis is encoding speed (vs realtime playback)


It is a .NET application, so you might have to install Microsoft .NET Framework.

Supported hardware
 * NVIDIA GeForce 2XX/4XX/5XX
 * ATI Radeon HD 5XXX
Command line options
 CUETools.FLACCL.exe [-0..-11] filename.wav [-o filename.flac]