System and method for controlling audio source

• US 9,218,844 B2
• Filed: 07/01/2014
• Issued: 12/22/2015
• Est. Priority Date: 02/29/2000
• Status: Expired due to Term

• Current Assignee: Native Instruments GmbH (Soundwide GmbH)
• Original Assignee: Native Instruments GmbH (Soundwide GmbH)
• Inventors: Bastian, Mark-Jan
• Primary Examiner(s): Donels, Jeffrey
• Application Number:
  US14/320,895
• Publication Number:
  US 20140313871A1
• Time in Patent Office: 539 Days
• Field of Search: 846/12, 846/45, 369/9, 369/69, 369/70
• US Class Current: 1/1
• CPC Class Codes: G10H 1/0091 Means for obtaining special acoustic effects combined with modulation G10H1/043
• CPC Class Codes: G10H 2210/241 Scratch effects, i.e. emulating playback velocity or pitch manipulation effects normally obtained by a disc-jockey manually rotating a LP record forward and backward
• CPC Class Codes: G10H 2250/631 Waveform resampling, i.e. sample rate conversion or sample depth conversion waveform decimation G10H2250/611
• CPC Class Codes: G10H 3/03 using pick-up means for reading recorded waves, e.g. on rotating discs drums, tapes or wires
• CPC Class Codes: G11B 19/02 Control of operating function, e.g. switching from recording to reproducing
• CPC Class Codes: G11B 19/28 Speed controlling, regulating, or indicating G11B19/24 takes precedence
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/005 Reproducing at a different information rate from the information rate of recording for television signals H04N5/783
• CPC Class Codes: G11B 27/3036 Time code signal

Abstract

An apparatus for signal processing, wherein a disc is placed on a turntable and is provided with a groove which can be followed by the pick-up element, and employing a time-code signal wherein during use of the disc the said time-code signal controls the digital audio source.

Claims

1. A method of controlling a sound source, comprising:

deriving a time code signal from a rotating disc, the derived time code signal comprising an absolute time code signal in the audible range;

filtering the derived time code signal to determine a relative time code signal;

determining the speed of rotation of the rotating disc based on the absolute time code signal;

determining a place on the rotating disc based on the relative time code signal;

controlling the speed of play of the sound source based on the absolute time code; and

controlling the direction of play of the sound source based on the relative time code signal.