I analyze sound source switching in my good working driver for Windows and it do next (see below...). By this expirience, I prepare next patch for msp3400.c, whitch work much better then my previous patch. (good working mute/unmute on external source, etc.) Windows drive do this for all Tv cards using MSP3400 chip. It maybe working good for all other cards under BTTV. Lukas. ---------------------------------------------------- For external sound source: WriteDSP($d,$3000); VIDEO_SOUND_STEREO: WriteDSP($08, $0220 or nicam); WriteDSP($0a, $0220 or nicam); VIDEO_SOUND_MONO, VIDEO_SOUND_LANG1: WriteDSP($08, $0200 or nicam); WriteDSP($0a, $0200 or nicam); VIDEO_SOUND_LANG2: WriteDSP($08, $0210 or nicam); WriteDSP($0a, $0210 or nicam); For tuner sound source: WriteDSP($d,$0); VIDEO_SOUND_STEREO: WriteDSP($08, $0020 or nicam); WriteDSP($0a, $0020 or nicam); VIDEO_SOUND_MONO, VIDEO_SOUND_LANG1: WriteDSP($08, $0000 or nicam); WriteDSP($0a, $0000 or nicam); VIDEO_SOUND_LANG2: WriteDSP($08, $0010 or nicam); WriteDSP($0a, $0010 or nicam);
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