Shares of audio-processing technology provider Audience ( ADNC ) today rose $2.22, or 19%, to $14.10, following a rise in after hours of 25% last night, after the company reported better-than-expected Q4 results and a much-better-than-expected outlook for this quarter. The stock got two upgrades, that I can see, from Credit Suisse 's Jonathan Pitzer and from Deutsche Bank Brian Modoff , although those are upgrades to Hold from Sell. J.P. Morgan's Harlan Sur reiterated an Overweight rating on the stock, and raised his price target to $17.50 from $15, writing that "Starting in 4Q, ADNC has also seen expansion and proliferation of its products at Samsung from high-end smartphones to mid range smartphones, and we believe this further underscores the stickiness of ADNC’s solution." He adds, "We believe ADNC is designed into Samsung’s flagship Galaxy S4 smartphone, and the ramp of the Galaxy S4, anticipated to debut in the April timeframe, is contributing to the ~18% Q/Q chipset shipment growth we have modeled in 1Q." "Additionally, ADNC is now seeing proliferation of its products into mid-range handsets including the recently announced Samsung Express, Samsung Stratosphere II, and Samsung Rugby III." Thanks, perhaps, to the fact that Apple ( AAPL ) has seen continued strong sales of its older models of iPhone, the 4 and the 4S , the company actually got a third of its revenue in the quarter, notes Sur, even though Apple dumped Audience from the latest model , the iPhone 5 , last fall. Sur also is enthusiastic that Audience won a contract to supplyDell (DELL) with parts for a personal computer. Sur raised his 2013 estimate to $185.7 million and 75 cents in adjusted profit, up from a prior $155.8 million and 40 cents. Deutsche's Modoff, raising his rating to Hold from Sell, and raising his price target to $13 from $5, writes that "Audience should be commended for delivering a solid quarter on metrics outside of Apple."