Vocal processing with accompaniment music input
AssigneeSing Trix LLC
InventorsDavid Kenneth HILDERMAN, John DEVECKA
Life of this patent
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Abstract
Systems, including methods and apparatus, for generating audio effects based on accompaniment audio produced by live or pre-recorded accompaniment instruments, in combination with melody audio produced by a singer. Audible broadcast of the accompaniment audio may be delayed by a predetermined time, such as the time required to determine chord information contained in the accompaniment signal. As a result, audio effects that require the chord information may be substantially synchronized with the audible broadcast of the accompaniment audio. The present teachings may be especially suitable for use in karaoke systems, to correct and add sound effects to a singer's voice that sings along with a pre-recorded accompaniment track.
Claims20
A time-aligned audio system for harmony generation, comprising:
- a chord detection circuit configured to receive and analyze an accompaniment audio signal in a first duration of time and to determine chord information corresponding to a chord of the accompaniment audio signal;
- a harmony processing circuit configured to receive and analyze the chord information and a melody note received from a singer, and to produce a harmony signal harmonized to the chord of the accompaniment audio signal and the melody note, the harmony processing circuit being configured to transmit the harmony signal to a loudspeaker to produce harmony audio;
- and
- a delay circuit configured to receive the accompaniment audio signal, and to store the accompaniment audio signal in memory for a predetermined delay time, the delay circuit being configured to stream the accompaniment audio signal to the loudspeaker after the predetermined delay time has lapsed to produce accompaniment audio, wherein the predetermined delay time approximates the first duration of time.
A harmony generating sound system, comprising:
- a chord detector configured to receive an accompaniment audio signal, to analyze the accompaniment audio signal to determine a chord of the accompaniment audio signal, and to produce chord information corresponding to the chord;
- a note generator configured to receive the chord information, to receive a melody note produced by a singer, and to generate a synthesized harmony signal corresponding to the melody note and the chord of the accompaniment audio signal;
- a delay unit configured to receive the accompaniment audio signal, and to store the accompaniment audio signal in memory until the chord detector produces the chord information;
- and
- an amplifier configured to receive, amplify, and transmit the accompaniment audio signal, the melody note and the synthesized harmony signal to a speaker to produce synthesized harmony audio, wherein the accompaniment audio, the melody note and the corresponding synthesized harmony audio and are substantially simultaneously produced by the speaker.
A harmony generating audio system, comprising:
- a digital signal processor connected to an amplifier and configured to:
- (i) receive an accompaniment audio signal;
- (ii) analyze the accompaniment audio signal to determine chord information contained within the accompaniment audio signal;
- (iii) store the accompaniment audio signal in memory for a predetermined delay time while the chord information is determined;
- (iv) after the chord information is determined, transmit the accompaniment audio signal to the amplifier for broadcast through a loudspeaker;
- (v) receive a melody audio signal produced by a singer's voice;
- (vi) generate at least one harmony note based on the chord information and the melody audio signal;
- and
- (vii) transmit the melody audio signal and the harmony note to the amplifier for broadcast through the loudspeaker.
Dependencies are inferred from the claim text.