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Hello Computer Audiophiles! I need your help if you are failiar with MPD module development. I am almost new to this community. I have developed active crossover such as http://www.aedio.co.jp/download/LatestModules/foo_dsp_channeldividerF2|F2B|F3|F3B.dll for those who likes to use multi-way speaker with multi-channel amps using FIR technology. THESE ARE VOLUNTEER BASED DEVELOPMENT so this is distributed free of charge! See Down load from file Recently I am now asked by several users if we can apply this active crossover to MPD or LINUX based system. I have Fedora / OSS / Lynx Based standalone application for this objective , but I donot know how to interface to MPD ,only I know and can do is, - Utilizing pipe feature of MPD configuration and pipe in filter program ( I have already) and out to pipe out and play by aplay -D surround40 or similar command. In this case we have to fix sampling rate if I use pipe out feature of MPD. This seems OK if I can resample 192KHz24bit or 96KHz24bit in MPD and fixing sample rate of data which was output from MPD to pipe out. So I like to know Is anyone be able to pass data from MPD to pipe or special API to modify data from MPD to our filter program? What I can provide you : I can provide you with latest source code of foobar2000 version, LINUX from pipe to pipe filter program (requires Non Disclosure Agreement) and know how to work with them. If this is realized I will distribute these modules at low cost for supporting overhead. Is there anyone who likes to do this type of Voluteer or small money development? Actually I have ported foobar2000 version to LINUX/Lynx Studio AES-16 by 4 Front Technology. But this is NOT ALSA but OSS because of Lynx Studio policy limitations. So now I am considering to port foobar2000 version (32bit integer buffer to FFT'd FIR filter processing with 64bit double precision and re-convert ot 32bit integer) to complete MPD additional module. I like someone who likes to cooperate with us to develop MPD based FIR filter development. Thanx in advance, Yutaka IIDA, CTO / Owner , AEDIO Japan