公开(公告)号：US20230377591A1

公开(公告)日：2023-11-23

申请号：US17748882

申请日：2022-05-19

Applicant: Lemon Inc.

Inventor： Lamtharn HANTRAKUL ,  David TREVELYAN ,  Haonan CHEN ,  Matthew David AVENT ,  Janne Jayne Harm Renée SPIJKERVET

IPC: G10L21/0264 ,  G10L21/04 ,  G10L25/18

CPC classification number: G10L21/0264 ,  G10L21/04 ,  G10L25/18

Abstract: Example aspects include techniques for implementing real-time and low-latency synthesis of audio. These techniques may include generating a frame by sampling audio input in increments equal to a buffer size of until a threshold corresponding to a frame size used to train a machine learning (ML) model is reached, detecting feature information within the frame, determining, by the ML model, control information for audio reproduction based on the feature information. In addition, the techniques may include generating filtered noise information by inverting the noise magnitude control information using an overlap and add technique, generating, based on the control information, additive harmonic information by combining a plurality of scaled wavetables, and rendering audio output based on the filtered noise information and the additive harmonic information.

公开(公告)号：US20230360619A1

公开(公告)日：2023-11-09

申请号：US17737282

申请日：2022-05-05

Applicant: Lemon Inc.

Inventor： Bochen LI ,  Vibert THIO ,  Haonan CHEN ,  Xuefan HU ,  Jitong CHEN

IPC: G10H1/00

CPC classification number: G10H1/0008 ,  G10H1/0066 ,  G10H2210/131 ,  G10H2240/075 ,  G10H2240/131

Abstract: In examples, a method for generating a remixed audio sample is provided. The method may include receiving an audio portion, obtaining metadata from the received audio portion, and analyzing the metadata and generating a symbolic music representation based on the analyzed metadata. In some examples, a selection of a style asset is received and applied to the symbolic music representation. Accordingly, a remixed audio portion may be rendered based on the stylized symbolic representation. That is, metadata associated with a song or song portion may be analyzed to identify a tempo, key, structure, chord, and/or progressions, etc., such that a remixed version of the song can be provided with customized instrumental arrangements and styles.

公开(公告)号：US20230360618A1

公开(公告)日：2023-11-09

申请号：US17737258

申请日：2022-05-05

Applicant: Lemon Inc.

Inventor： Vibert THIO ,  Bochen LI ,  Haonan CHEN ,  Jitong CHEN

IPC: G10H1/00

CPC classification number: G10H1/0008 ,  G10H2210/391 ,  G10H2220/116 ,  G10H2210/076 ,  G10H2210/265 ,  G10H2240/325

Abstract: Systems and methods directed to combining audio tracks are provided. More specifically, a first audio track and a second audio track are received. The first audio track is separated into a vocal component and one or more accompaniment components. The second audio track is separated into a vocal component and one or more accompaniment components. A structure of the first audio track and a structure of the second audio track are determined. The first audio track and the second audio track are aligned based on the determined structures of the tracks. The vocal component of the first audio track is stretched to match a tempo of the second audio track. The stretched vocal component of the first audio track is added to the one or more accompaniment components of the second audio track.