Choose a sound for focused work or study
Choose the next activity before choosing the sound. Define one small task or a brief pause, then select a comfortable background. Keep the setup simple enough to repeat and adjust it based on your experience.
Biaura is an iPhone app with binaural beats, pure tones, colored noise and ambient sounds. Choose a comfortable sound for a listening routine, and use stereo headphones for binaural beats. Noise and ambient sounds also work on speakers.
Compare a comfortable sound with silence during similar tasks. Use headphones for beats or try a quiet noise recording when the room is distracting. Keep the sound if it helps you follow the work.

Related articles
How do you use colored noise for focus?
Sound masking adds a background that can make an interruption less distinct; it does not remove the original sound or soundproof a room.
Why does speech wreck a work block?
Speech keeps changing, and it is language. Even ignored, it competes with the sentence you are holding. White or pink on speakers. Lyrics count.
Silence, noise, or beats?
Silence if the room is already quiet. Noise if speech or rumble is competing. Beats if you want a pulse and headphones. One sound, cannot stack.
What sound do you use when you can't stay on one thing?
One task, one sound, 20 to 40 minutes. Focus at 16 Hz or brown/pink if the room is talking.
What frequency is best for focus?
Compare a comfortable sound with silence during similar work, and judge the result by what you finish and understand rather than the frequency label.
White, pink and brown noise: a practical listening guide
Compare noise colors, understand their spectra, and choose a comfortable sound for sleep, focus or everyday masking.