Speaker system with 100-W high output power and 0.17% THD using 9-V power supply with digitally direct-driven technique

Furuya, Yuki; Masayoshi, Takahashi; Saikatsu, Satoshi; Yoshino, Masao; Yasuda, Akira

doi:10.1109/icce.2017.7889393

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2021

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hardware issues include the design of an amplifier [1] and a digital-to-analog converter [2]. Recently, without using any analog components, a fully digital audio system that uses digital loudspeakers with multiple coils achieves energy saving [3] [4]. These attempts can efficiently reduce power consumption, but it is necessary to redesign the audio system.…”

Section: Introductionmentioning

confidence: 99%

Power-saving Reproduction Algorithm for Speech Signals

Nakagawara

Mizumachi

2021

JIIAE

View full text Add to dashboard Cite

Power consumption is one of the important issues for portable electronic devices. The authors have previously proposed a power-saving audio reproduction algorithm based on auditory masking. In this paper, the feasibility of the power-saving audio playback algorithm is confirmed towards speech signals in the viewpoints of both speech intelligibility and power consumption. The influence of the speech conversion for power-saving playback was quantified as the word intelligibility. In practice, the word intelligibility was measured in each of six phoneme categories for the converted speech signals of which the reduction rate of power consumption was set at 20%, 50%, and 70%. It is confirmed that the word intelligibility does not decrease drastically for the converted speech of which the reduction rate of power consumption was set at 50%.

show abstract

Section: Introductionmentioning

confidence: 99%