This demonstration plays a tone followed by three tone complexes followed by a second tone. The frequencies and amplitudes of the two tones may be specified or the frequency and amplitude of the first tone and the modulation frequency and depth. The duration and rise/fall times of the tones can be spcified.
The first complex is the sum of the two tones. The second complex is an AM tone. The third complex is a quasi-FM tone. Optionally masking noise may be added to the tones.

The two-tone complex has the same amplitude excursions as the AM-tone complex.
The AM and quasi-FM tone complexes have the same spectral amplitudes but differ in the phase of the sidebands.

Instructions

Both Left Right Ear      Yes No Parameters

Tone: Frequency Hz    Level dB SPL

IP    R/F    On    Off ms

Second Tone Parameters      Tone-2: Frequency Hz    Level dB SPL
Modulation Parameters       Modulation Frequency Hz    Depth dB

Noise      Level dB SPL    R/F ms

Highpass Hz    Order      Lowpass Hz    Order

No Initial Tone
No Two Tones
No AM Tone
No FM Tone
No Final Tone

Sample Rate 11025 16000 22050 32000 44100 88200 Hz      Calibration dB SPL