公开(公告)号：US11756569B2

公开(公告)日：2023-09-12

申请号：US17829810

申请日：2022-06-01

Applicant: ASUSTeK COMPUTER INC.

Inventor： Chun-Chi Wang ,  Kuo-Yuan Huang ,  Wei-Chen Kuan ,  Tzu-Yin Su ,  Tsung-Yen Yu

IPC: G10L25/51

CPC classification number: G10L25/51

Abstract: A sound quality evaluation method and a sound quality evaluation system using same are provided. The sound quality evaluation system records playback of a test audio file on a plurality of playback devices to generate a plurality of pieces of audio data, and divides the audio data into a plurality of frequency bands. The sound quality evaluation system calculates the frequency bands to obtain a plurality of evaluation scores of the playback devices. The sound quality evaluation system captures sound quality ranking information corresponding to the playback devices from a reference source, and adjusts the evaluation scores according to the sound quality ranking information, to further obtain a reference model. The sound quality evaluation system adjusts correspondingly evaluation scores of a plurality of to-be-tested playback devices according to the reference model, to obtain sound quality ranking information of the to-be-tested playback devices.

公开(公告)号：US11477573B2

公开(公告)日：2022-10-18

申请号：US17324766

申请日：2021-05-19

Applicant: ASUSTEK COMPUTER INC.

Inventor： Tsung-Yen Yu ,  Kuo-Yuan Huang ,  Shih-Jie Kuo ,  Yuan-Hao Lo ,  Yen-Ming Chen ,  Wei-Chi Pan

IPC: H04R3/04 ,  H04R5/04

Abstract: A handheld electronic device includes a first speaker, a second speaker, and an audio controller. The audio controller includes a signal receiving unit, a frequency crossover unit, a harmonic-wave generating unit, a low frequency enhancement unit, and a signal synthesis unit. The signal receiving unit receives an original sound signal and generates a first channel signal and a second channel signal according to the original sound signal. The frequency crossover unit sets a preset frequency crossover point to filter the first channel signal to generate a low frequency signal. The harmonic-wave generating unit generates harmonic waves according to the low frequency signal. The low frequency enhancement unit generates an enhancing low-frequency signal according to the harmonic waves. The signal synthesis unit generates a first channel enhanced signal according to the enhancing low-frequency signal and drives the first speaker.