قارن الطرق

	وضوح الكلام	استجابة الغرفة النبضية
المجال	علم الصوتيات	علم الصوتيات
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1980	1965
صاحب الطريقة	Herman Steeneken, Tammo Houtgast	Manfred Schroeder
النوع	Speech clarity assessment method	Measurement pipeline for room acoustics
المصدر التأسيسي	Steeneken, H. J., & Houtgast, T. (1980). A physical method for measuring speech-transmission quality. Journal of the Acoustical Society of America, 67(1), 318–326.	Schroeder, M. R. (1965). New method of measuring reverberation time. Journal of the Acoustical Society of America, 37(6), 409–412.
الأسماء البديلة	intelligibility metrics, STI, Speech Transmission Index, clarity index	RIR, impulse response measurement
ذات صلة	5	5
الملخص	Speech intelligibility is a quantitative measure of how well listeners understand spoken content in acoustic environments. Formalized by Steeneken and Houtgast in 1980 with the Speech Transmission Index (STI), intelligibility metrics combine room acoustic parameters (RT60, noise, clarity) to predict listener comprehension. Understanding speech intelligibility is essential for designing classrooms, offices, hearing aids, and public address systems where clear communication is critical.	The Room Impulse Response (RIR) is a measure of how a physical space (room) affects acoustic signals propagating through it. First formalized by Manfred Schroeder in 1965, RIR captures the complete acoustic character of a space by measuring the system response to an impulsive sound source. It is fundamental to characterizing room acoustics, designing audio systems, and modeling spatial audio effects.