심리음향

지각적 메트릭 및 사운드 품질 평가

Audio Toolbox™는 인간이 소리를 인식하는 방식을 연구하는 심리음향과 관련된 기능을 제공합니다. 이러한 기능을 사용하여 라우드니스, 조성(tonality), 품질, 명료도(intelligibility)와 같은 사운드의 지각적 속성을 측정합니다.

함수

모두 확장

integratedLoudnessMeasure integrated loudness and loudness range
loudnessMeterStandard-compliant loudness measurements
stoiShort-time objective intelligibility measure (R2024a 이후)
visqolObjective metric for perceived audio quality (R2024a 이후)
acousticToneToNoiseRatioIdentify and quantify tones in acoustic signals (R2023b 이후)
acousticProminenceRatioQuantify tonality by comparing critical bands (R2023b 이후)
acousticLoudnessPerceived loudness of acoustic signal
acousticSharpnessPerceived sharpness of acoustic signal
acousticFluctuationPerceived fluctuation strength of acoustic signal
acousticRoughnessPerceived roughness of acoustic signal (R2021a 이후)
calibrateMicrophoneCalibration factor for microphone
erb2hzConvert from equivalent rectangular bandwidth (ERB) scale to hertz
bark2hzConvert from Bark scale to hertz
mel2hzConvert from mel scale to hertz
hz2erbConvert from hertz to equivalent rectangular bandwidth (ERB) scale
hz2barkConvert from hertz to Bark scale
hz2melConvert from hertz to mel scale
phon2soneConvert from phon to sone
sone2phonConvert from sone to phon

블록

Loudness MeterStandard-compliant loudness measurements

도움말 항목

추천 예제

Effect of Soundproofing on Perceived Noise Levels

Effect of Soundproofing on Perceived Noise Levels

Measure engine noise and use psychoacoustic metrics to model its perceived loudness, sharpness, fluctuation strength, roughness, and overall annoyance level.

Loudness Normalization in Accordance with EBU R 128 Standard

Loudness Normalization in Accordance with EBU R 128 Standard

Use tools from Audio Toolbox to measure loudness, loudness range, and true-peak value.

Psychoacoustic Bass Enhancement for Band-Limited Signals

Psychoacoustic Bass Enhancement for Band-Limited Signals

An audio plugin designed to enhance the perceived sound level in the lower part of the audible spectrum.

THD+N Measurement with Tone-Tracking

THD+N Measurement with Tone-Tracking

Measure total harmonic distortion and noise level of audio input and output devices.