很有用的噪聲庫(kù)，可進(jìn)行語(yǔ)音信號(hào)處理的離線仿真測(cè)試等

File: Matlab or WAV formats (compressed)
sampling rate: 19.98 KHz
A/D: 16 bit
pre-filter: anti-aliasing filter
pre-emphasis: none
filter: none
duration: 235 sec
length (uncompressed): approx 9 Mb (uncompressed)

白噪聲：White noise
White Noise acquired by sampling high-quality analog noise generator (Wandel & Goltermann). Exhibits equal energy per Hz. bandwidth.

車內(nèi)噪聲：volvo
Volvo 340 noise acquired by recording samples from 1/2" B&K condensor microphone onto digital audio tape (DAT). This recording was made at 120 km/h, in 4th gear, on an asphalt road, in rainy conditions.

軍用車輛噪音：Military vehicle noise
Leopard 2 noise acquired by recording samples from 1/2" B&K condensor microphone onto digital audio tape (DAT). The Leopard 1 vehicle was moving at a speed of 70 km/h. The sound level during the recording process was 114 dBA.

坦克內(nèi)部噪聲:Tank noise
M109 noise acquired by recording samples from 1/2" B&K condensor microphone onto digital audio tape (DAT). The M109 tank was moving at a speed of 30 km/h. The sound level during the recording process was 100 dBA.

餐廳內(nèi)嘈雜噪聲：speech babble
Voice Babble acquired by recording samples from 1/2" B&K condensor microphone onto digital audio tape (DAT). The source of this babble is 100 people speaking in a canteen. The room radius is over two meters; therefore, individual voices are slightly audible. The sound level during the recording process was 88 dBA.

高頻信道噪聲：HF channel noise
Recording of noise in an HF radio channel after demodulation

粉紅噪聲：pink noise
Pink Noise acquired by sampling high-quality analog noise generator (Wandel & Goltermann). Exhibits equal energy per 1/3 octave.

機(jī)槍噪聲：Machine gun noise
Machine Gun noise acquired by recording samples from 1/2" B&K condensor microphone onto digital audio tape (DAT). The weapon used was a .50 calibre gun fired repeatedly.

工廠車間噪音1：Factory floor noise 1
Factory noise acquired by recording samples from 1/2" B&K condensor