| 摘要 |
PURPOSE:To provide a voice emphasis device which is applicable to a telephone set, a loudspeaker and other acoustic instruments or a voice coding and decoding device and improves the clarity of a voice without deteriorating naturalness and makes the voice easy to hear by an aged person. CONSTITUTION:The device is provided with a voice feature parameter fluctuation amount analysis means 2 which divides an inputted voice into short time blocks and analyzes the degree of timewise fluctuation of the voice feature parameters of the inputted voice every block, an emphasis strength control means 3 which controls the spectrum emphasis strength in response to the voice feature parameter fluctuation amount information outputted by the means 2, a spectrum emphasis means 6 which executes the emphasis based on the means 3, a detection means which detects the voice that is deteriorated by the voice emphasis and noise and an emphasis coefficient change means 5 which suppresses or inhibits the execution of an emphasis based on more than one control signal outputted by the detection means. |
