snd_emu10k1_playback_unmute_voice
snd_emu10k1_playback_unmute_voice(emu, evoice, stereo, true, mix);
snd_emu10k1_playback_unmute_voice(emu, evoice + 1, true, false, mix);
snd_emu10k1_playback_unmute_voice(emu, epcm->voices[i], false, true,