Syndicated descriptions of web content are obtained from feeds. The processing circuit is configured to receive the audio from an audio input, analyze the audio to determine a first audio range, a second audio range, and a third audio range. A serial data interface includes a listener software module that receives serial data streams and a parser software module communicatively connectable to the LSM that processes the serial data streams received from the LSM. The second search key data includes a weighting value set and an inversed weighting value set. The contact portion includes a first contact portion facing to the first roller and second rollers, and a second contact portion disposed in an upstream side of the first contact portion in the supply direction. The downward pressure also insures that the rollers will press down with equal force on uneven height materials since the pivot adjusts the height of the rollers to the height of the materials and thus prevents floating which can lead to jamming of the sewing machine.