Pioneer Corporation

Kensuke Chiba

Gen Inoshita

Takeaki Funada

Hiroyasu Eguchi

Takashi Suzuki

Youichi Yamada

Masahiko Miyashita

Tomohiko Kimura

Hiroyuki Isobe

Kazuo Kamei

Koichiro Sakata

Naomi Amemiya

Yoshinori Kataoka

Keitaro Kaburagi

Akiharu Yagi

Koji Ogura

Toru Yada

Nobuo Ohyama

Chihaya Oga

Harui Koizumi

Tetsuhiro Hase

Katsuhiko Goda

Audio information is read out of a recording medium which records musical pieces as audio information. The audio information read out is processed to detect BPM values and positions of beats in the musical piece. A musical piece is reproduced from the recording medium by reproducing audio information in accordance with the detected BPM values and positions of beats. The BPM value indicates the tempo of a musical piece, and the beat indicates a strength of a sound which repeatedly appears in each musical piece. When the audio information is reproduced in accordance with the detected BPM values and positions of beats, the musical piece is reproduced at the correct tempo and beats without giving an unnatural feeling to the listener.

Audio information reproduction device and audio information reproduction system

An information playback apparatus is provided, which can provide a sound which sounds natural by controlling an abrupt change in a tempo in the case of random access playback. When a cue point is registered, audio data which makes seamless playback possible is stored into a cue point memory, and further, the beat density of a playback sound being played when the cue point is registered is measured and stored. When the cue point is specified to start random access playback later, a ratio of the beat density (&#x3b1;&#xd7;DBPM) of a playback sound being played when the cue point is specified and the beat density (DBPMreg) stored in advance is found. Then, the random access playback is started after the beat density of a playback sound to be played after random access playback is started is corrected to be equal to the beat density when a start of the random access playback is specified.

Information playback apparatus

An audio signal processor performs a signal processing on the first audio signal and the second audio signal in correspondence with an operation to produce an output. The processor comprises and operation device, a signal processing device and a control device. The operation device is operatively movable between one end and the other end. The one end is associated with the first audio signal and the other end is associated with the second audio signal. The signal processing device performs a signal processing on any one of the first audio signal and the second audio signal to provide at least one kind of predetermined effect. The control device controls the signal processing device so that the effect is provided for any one of the first audio signal and the second audio signal at a predetermined timing based on a position of the operation device and a moving direction thereof.

Audio signal processor

Both of one audio information and another audio information are recorded on a same information record medium. An audio information reproducing apparatus is provided with: a detecting device for detecting said one audio information and said another audio information from the information record medium and also detecting a time period required for one beat of the detected another audio information; and an accumulating device for accumulating said one audio information detected from the information record medium to thereby continue reproducing and outputting said one audio information through the accumulating device. The audio information reproducing apparatus is also provided with a controlling device for controlling the detecting device to detect said another audio information and the time period required for one beat, within a time duration that the accumulated one audio information is being reproduced and outputted through the accumulating device.

Method of and apparatus for reproducing audio information, program storage device and computer data signal embodied in carrier wave

An audio information reproducing apparatus reproduces one audio information and reproduces another audio information after said one audio information. The apparatus is provided with: a detecting device for detecting one time period required for one beat of said one audio information, and also detecting another time period for one beat of said another audio information; and a reproducing device for reproducing said another audio information continuously to said one audio information while controlling the detected another time period to be coincident with the detected one time period. Alternatively or additionally, the apparatus is provided with: a detecting device for detecting one beat timing which is a timing of a beat of said one audio information and also detecting another beat timing which is a timing of a beat of said another audio information, so that the reproducing device controls the detected another beat timing to be coincident with the detected one beat timing.

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Tokyo-to, Japan

Kensuke Chiba