In this homework, you are asked to detect a tonal signal in broadband noise. Detailed instructions and acoustic sounds can be found here on this slide i, Click the loudspeaker symbols on the slide to play the sounds and adjust your computer volume so that the lower level is audible while the higher levels are not too loud. Once set, the computer volume should be fixed when you listen to the three sets of sounds. Report your results using the following table in text entry. Answer whether the lowest signaltonoise ratio (SNR) for signal detection is a constant for different masker levels. How man times did ou detect the . . Masker Level . y . . ll The lowest SNR for srgnal detection tonal signal In nOIse 20 dB Higher Signal Detection in Noise A 100-ms, 1000-Hz signal is added to a broad-band noise masker, at each of the three masker levels. The signal energy level is initially 30 dB more than the noise spectrum level, and gradually decreases by 5 dB in each successive stimulus. For each masker level, listen to the 10 stimuli, count how many times you can detect the signal in noise, and calculate the lowest SNR for signal detection. A mplitude If you only detect the signal once, the lowest SNR for signal detection is 30 dB... Twice means 25 dB SNR, three times means 20 dB SNR, and so on. Lower masker level 10-dB higher masker level 20-dB higher masker level "1