Studio
Royal Audio Studio
Auto is on. Bass and voice follow what is playing. Move a slider and auto stops.
Bass 0 · Voice 0 · HP 20 · Width 0
The bass note itself is loud, about 50–180 Hz. The 250 Hz cut keeps mud out, so the voice and the music stay exact.
Width 0 means the same sound in both speakers. Start there for two separate Bluetooth speakers.
This output
Play once, allow the mic, then look again so the output has a name.
Same tune on another phone
YouTube and Spotify do not pass through this app. For those, copy the numbers into the phone equalizer. Inside this studio the sliders work at once.
Royal Audio Studio EQ High-pass: 20 Hz 80 Hz: 0 dB 250 Hz: 0 dB 1 kHz: 0 dB 3.2 kHz: 0 dB 8 kHz: 0 dB Stereo width: 0% (0 = mono) Balance: 0 (negative = left) Right delay: 0 ms Invert right phase: no Limiter: on Deep bass body: 0% (the bass note itself, about 50–180 Hz) Voice clarity: 0% (box cut + presence, not louder mids) App volume: 62% 80 Hz +6 is the loud bass. Mud at 250 Hz stays cut so the voice and the music stay exact. Phone volume about 65%. © 2026 S.K Shofiqual Islam (Badol). All rights reserved.Tests and mic check