Long white noise sweep 8 seconds

About this sample

This sound is an 8-second stereo white noise sweep that moves upward from 150 Hz to 15 kHz using a resonant bandpass filter with roughly one octave bandwidth. The sweep is logarithmic, creating a natural rise in brightness. Two independent noise sources feed left and right channels for a wide stereo image. The volume crescendos exponentially from -30 dB to 0 dB over the duration, with gentle tanh saturation adding harmonic richness and a slight analog grit. Short fade-ins and fade-outs prevent clicks at the start and end.

It fits well in electronic, ambient, and experimental genres as a tension-building effect or transition element. Layer with pads or synths to add texture, and consider subtle reverb or delay to enhance space. Watch the mid-high frequencies in the mix to avoid harshness, as the sweep reaches up to 15 kHz with increased brightness and saturation.