Once settled, we begin our meeting, and become oblivious to the gentle hum of conversation and activity going on all around us. (religion-online.org)
Sometimes just the voice of his parents or gentle humming can be enough to palliate their grumpy mood. (newkidscenter.com)
That said, it is generally no more than a gentle hum, and many parents actually see this as a good thing because it helps their babies to sleep. (wetheparents.org)