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    • 3. 发明专利
    • Device for adding sound effect, device for extracting fundamental note, and program
    • 用于增加声音效果的设备,用于提取基本注释和程序的设备
    • JP2006243006A
    • 2006-09-14
    • JP2005054481
    • 2005-02-28
    • Casio Comput Co Ltdカシオ計算機株式会社
    • SETOGUCHI KATSU
    • G10L21/04
    • G10H1/366G10H1/20G10H2210/066G10L25/90
    • PROBLEM TO BE SOLVED: To provide a technique for converting the pitch of a speech waveform into a target pitch without directly detecting the pitch of the speech waveform and further to provide a technique for securely extracting the pitch of the speech waveform.
      SOLUTION: A phase compensation section 25 extracts two or more frequency channels where frequency components one times as high as the tonic of an original speech are present out of frequency channels where frequency components are obtained through FFT carried out by an FFT section 24, calculates a scaling value for converting their tonic into a target tonic, and performs phase compensation corresponding to the scaling value. A pitch shifter 27 perform pitch scaling speech corresponding to the scaling value by performing IFFT of the phase-compensated frequency components by an IFFT section 26 to generate speech data having been converted to the target tonic.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于将语音波形的音调转换为目标音调而不直接检测语音波形的音调并进一步提供用于安全地提取语音波形的音调的技术。 解决方案:相位补偿部分25提取两个或多个频率分量,其中频率分量是原始语音的音调的一倍的频率分量出现在通过FFT部分24执行的FFT获得频率分量的频率信道中 计算用于将其补品转换为目标补品的比例值,并执行与缩放值相对应的相位补偿。 音调移位器27通过IFFT部分26执行相位补偿的频率分量的IFFT来产生对应于缩放值的音调缩放语音,以生成已被转换为目标音调的语音数据。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Electronic music device and computer readable program adapted to the same
    • 电子音乐设备和电脑可读程序适用于此
    • JP2006195043A
    • 2006-07-27
    • JP2005004946
    • 2005-01-12
    • Yamaha Corpヤマハ株式会社
    • HIRATSUKA MASARU
    • G10G1/04G10G3/04G10H1/00
    • G10H1/20G10H1/0016G10H2220/015G10H2220/041
    • PROBLEM TO BE SOLVED: To display a musical score or fingering for a second musical instrument whose fundamental note is different from that of a first musical instrument on an indicator on the basis of a series of pieces of musical note information for the first musical instrument. SOLUTION: In an electronic music device, a CPU 21 converts original music data including a series of pieces of musical note information in accordance with the fundamental note of the first musical instrument into new music data including a series of pieces of musical note information in accordance with the fundamental note of the second musical instrument whose fundamental note is different from that of the first musical instrument by executing a program stored in an external storage device 25. In this case, the CPU 21 transposes the original music data by the difference between the fundamental note of the first musical instrument which is included in the original music data and the fundamental note of the second musical instrument. The CPU 21 carries out octave shifting of the musical note information in the new music data so that a series of the musical note information in accordance with the fundamental note of the second musical instrument enter the performable compass of the second musical instrument and also a compass suitable for the performance of the second musical instrument. The CPU 21 displays musical notes and the fingering on an indicator 12 on the basis of the musical note information in the new music data. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:基于用于第一个音符信息的一系列音符信息来显示基准音与指示符上的第一乐器的基本音符不同的第二乐器的乐谱或指法 乐器。 解决方案:在电子音乐装置中,CPU 21根据第一乐器的基本音符将包括一系列音符信息的原始音乐数据转换成包括一系列音符的新音乐数据 通过执行存储在外部存储装置25中的程序,根据其基本音符与第一乐器的基本音符不同的第二乐器的基本音符的信息。在这种情况下,CPU 21将原始音乐数据转换为 包含在原始音乐数据中的第一乐器的基本音符与第二乐器的基本音符之间的差异。 CPU 21对新音乐数据中的音符信息执行八度移位,使得根据第二乐器的基本音符的一系列音符信息进入第二乐器的可执行罗盘,还包括罗盘 适合演奏第二乐器。 CPU 21基于新音乐数据中的音符信息,在指示器12上显示音符和指法。 版权所有(C)2006,JPO&NCIPI
    • 8. 发明专利
    • Pitch / tempo conversion method and apparatus
    • JP3451900B2
    • 2003-09-29
    • JP25639397
    • 1997-09-22
    • ヤマハ株式会社
    • 多伸 近藤
    • G10L21/04G10H1/043G10H1/20G10H7/12
    • G10H1/20G10H7/12G10H2210/385G10H2250/035G10H2250/621Y10S84/12
    • A pitch/tempo converting apparatus is constructed for concurrently changing a tempo and a pitch of an audio signal according to tempo designation information and pitch designation information. In the apparatus, a memory section memorizes the audio signal composed of original amplitude values sequentially sampled at original sampling points timed by an original sampling rate within an original frame period. A tempo converting section converts the original frame period into an actual frame period by varying a length of the original frame period according to the tempo designation information so as to change the tempo of the audio signal. A pitch converting section converts each of the original sampling points into each of actual sampling points by shifting each of the original sampling points according to the pitch designation information so as to change the pitch of the audio signal. An interpolating section calculates each of actual amplitude values at each of the actual sampling points by interpolating the original amplitude values sampled at original sampling points adjacent to the actual sampling point. A reading section sequentially reads the actual amplitude values by the original sampling rate during the actual frame period so as to reproduce a segment of the audio signal within the actual frame period. A connecting section smoothly connects a series of the segments reproduced by repetition of the actual frame period to thereby continuously change the tempo and the pitch of the audio signal.