MLpv controls[5];    /* Nachricht, die 5 Werte enthält */
MLreal64 gain = -12; /* Dämpfung */

controls[0].param = ML_AUDIO_FORMAT_INT32;
controls[0].value.int32 = ML_FORMAT_S16;
controls[1].param = ML_AUDIO_CHANNELS_INT32;
controls[1].value.int32 = 1;
controls[2].param = ML_AUDIO_GAINS_REAL64_ARRAY;
controls[2].value.pReal64 = &gain
controls[2].length = 1;
controls[3].param = ML_AUDIO_SAMPLE_RATE_REAL64;
controls[3].value.real64 = 44100.0;
controls[4].param = ML_END;