Re: [Alsa-user] Remove DC Offset from Recorded Audio
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From: Charles C. <cha...@py...> - 2011-11-13 04:56:24
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Chen Tao <pr...@gm...> wrote: > > Yes, any audio-editing program (Audacity, Ardour, etc) will have a > > function/filter for removing DC offset. > > But I need to remove DC offset in realtime, for example, when I make calls > with Google Voice. So, is there a filter that can be connected with ALSA > audio input and generates output with no DC offset? Ah. You can probably do it with gstreamer but I'm afraid I don't have a specific recipe for you. If the offset is always the same, sox can also operate in a filter fashion (stdin->stdout) and has a dcshift operator that can be used. I have no idea how to make that work with Google Voice (never used it). Charles -- ------------------------------------------------------------------ Charles Cazabon <cha...@py...> Software, consulting, and services available at http://pyropus.ca/ ------------------------------------------------------------------ |