I had a problem with my Galaxy S9 and playing music via bluetooth speakers, one a B&W Formation Wedge and the other a Yamaha. The music randomly changed volume especially with bass and higher frequencies surrounding vocals.
I spent a week with B&W testing the speaker and also just spent another 2 weeks with Synology (music all stored on NAS drive) in case it was their music app causing the problem.
I saw a similar issues being posted and investigated adaptive sound and I saw that there are 4 modes on my S9, 1 = Off (no boost), 2 = Under 30 years old (boost high range frequencies), 3 = 30-60 years old (/boost high/mid range frequencies and 4 = over 60 years old (boost all frequencies). My phone had defaulted to mode 2 for some reason, so I switched to mode 1 Off (no boost) and it seems to clear the problem. I have tested a number of music files that were showing the volume fluctuations and are all problem free. I need to test my music for longer to be certain it is fixed permanently.
I have raised this with Samsung
My question to Samsung is why would you have software to boost frequencies when as age progresses your sensitivity to frequencies diminishes and cannot hear if boosted anyway and why set a default like this to an age range that is not relevant and importantly it should not be set at all and should default to off. I have spent a massive amount of time investigating this - nightmare.
Samsung you are trying to be too clever!
I spent a week with B&W testing the speaker and also just spent another 2 weeks with Synology (music all stored on NAS drive) in case it was their music app causing the problem.
I saw a similar issues being posted and investigated adaptive sound and I saw that there are 4 modes on my S9, 1 = Off (no boost), 2 = Under 30 years old (boost high range frequencies), 3 = 30-60 years old (/boost high/mid range frequencies and 4 = over 60 years old (boost all frequencies). My phone had defaulted to mode 2 for some reason, so I switched to mode 1 Off (no boost) and it seems to clear the problem. I have tested a number of music files that were showing the volume fluctuations and are all problem free. I need to test my music for longer to be certain it is fixed permanently.
I have raised this with Samsung
My question to Samsung is why would you have software to boost frequencies when as age progresses your sensitivity to frequencies diminishes and cannot hear if boosted anyway and why set a default like this to an age range that is not relevant and importantly it should not be set at all and should default to off. I have spent a massive amount of time investigating this - nightmare.
Samsung you are trying to be too clever!