ENVY24HT_REC_CHNUM
data[dst] = dmabuf[src * ENVY24HT_REC_CHNUM + slot].buffer;
data[dst + 1] = dmabuf[src * ENVY24HT_REC_CHNUM + slot + 1].buffer;
data[dst] = dmabuf[src * ENVY24HT_REC_CHNUM + slot].buffer;
data[dst + 1] = dmabuf[src * ENVY24HT_REC_CHNUM + slot + 1].buffer;