Hello guys, since I've bought my Galaxy Note 8, I have been extensively trying each and every sound option available on settings. And I saw this one called Samsung UHQ Upscaler. I looked up some info about it and it seems to upscale all audio to 32 bits, but I found two options underneath this upscaler: Bit upscaling and Bit and bandwidth upscaling Trusting my ears I found out to be sounding the best when I only enabled Bit upscaling, but I wanted to see what this was doing, so I took measures with my Focusrite Scarlett 2i2 (2nd gen) connected to my iFi micro iUSB3.0 and RMAA 6.4.1. I also adjusted the input gain when needed to maintain the volume constant. As you can see in this summary, there is an absurdly abrupt amount of Intermodulation Distortion and Total Harmonic Distortion when bandwidth upscaling is applied. But let's look at the graphs... No variation on the frequency response, great! Bit/Bandwidth mode has lower noise but also has some strange peaks arround 200Hz, 400Hz and 750Hz and Bit mode has lower noise without strange peaks. Now we have a worse dynamic range on Bit/Bandwidth mode. And a slightly better dynamic range on Bit mode compared to having UHQ completely disabled. But it is within margin of error. Here comes the disaster. Bit/Bandwidth mode is generating tons of harmonic distortion! Bit mode and disabled have the exact same distortion (result within margin of error). And if that weren't enough, Intermodulation distortion on Bit/Bandwidth mode is crazy high! And again, same results on Bit mode and disabled, if anything, slightly better on bit mode. Aaand here we have an interesting result. Bit/Bandwidth is giving the worst result by far doing weird things with sub bass frequencies. With UHQ Upsaling disabled, we get better crosstalk up to 5kHz, when Bit Upscaler keeps it lower than -90dB. Amazing! I have repeated this test a few times and the results were consistent. Analyzing the results, I see bit upscaling is really making some improvement. And we completely discard Bit/Bandwidth mode. But now I want to check how does it perform on low volume. Because, as you may know, Android regulates the volume on a digital manner, reducing the overall available dynamic range (truncating PCM packets) As you can see, we get lower noise, 6dB MORE OF DYNAMIC RANGE, lower THD, lower IMD and better crosstalk. Exact same frequency response UHQ Upscaler on bit mode shows a lower noise level specially on higher frequencies. Awesome! An enormous difference in dynamic range, a whole bit is recovered with 6dBs more of DR. Significantly lower Total Harmonic Distortion with UHQ Upscaler on Bit mode Again, better Intermodulation distortion with UHQ enabled on Bit mode And significantly better crosstalk overall. Now, my conclusions about this are that indeed UHQ Upscaler on Bit Upscaling mode is the best option objectively talking. It seems to help quantize giving more resolution and lower noise. And I can lower the volume finally without loosing almost any quality. Thanks for reading. What are your thoughts about it?