7ni4F_ Posted July 30, 2023 Share Posted July 30, 2023 I wanna know if it's normal for Bluetooth to default to 24-bit and 96hz. I try to switch it to 16-bit and 44.1hz since my files aren't any higher than these parameters. Is it normal why Android tries to force itself to use these default parameters and not the ones I set? Link to comment Share on other sites More sharing options...
Fitzian Posted July 30, 2023 Share Posted July 30, 2023 Does your phone and Bluetooth device support LDAC? Its format parameters top out at 24/96. Otherwise 16bit/44.1 kHz is the norm for most Bluetooth connections. Link to comment Share on other sites More sharing options...
7ni4F_ Posted July 31, 2023 Author Share Posted July 31, 2023 9 hours ago, Fitzian said: Does your phone and Bluetooth device support LDAC? Its format parameters top out at 24/96. Otherwise 16bit/44.1 kHz is the norm for most Bluetooth connections. Yes, I use LDAC. Is it normal for it to go 24/96, even if I set it to 16/44.1 because my files aren't higher and doing so will just cause Poweramp to resample the audio. Link to comment Share on other sites More sharing options...
Fitzian Posted July 31, 2023 Share Posted July 31, 2023 If possible, see if output will stick to 88.2kHz? Do you have sample rate set to "defined by device" or a manual setting? Link to comment Share on other sites More sharing options...
Fitzian Posted July 31, 2023 Share Posted July 31, 2023 If SoX resampler is enabled, any resampling to a higher resolution (88.2 or 96) isn't losing anything. Link to comment Share on other sites More sharing options...
7ni4F_ Posted July 31, 2023 Author Share Posted July 31, 2023 4 minutes ago, Fitzian said: If SoX resampler is enabled, any resampling to a higher resolution (88.2 or 96) isn't losing anything. 5 minutes ago, Fitzian said: If possible, see if output will stick to 88.2kHz? Do you have sample rate set to "defined by device" or a manual setting? I only have 16/24/32-bit and 44.1/48/96 as my options. Link to comment Share on other sites More sharing options...
Fitzian Posted July 31, 2023 Share Posted July 31, 2023 LDAC (in a vacuum that only Sony knows the whereabouts of) should support 44.1, 48, 88.2, and 96kHz. Some devices/ROMs gate sample rates behind specific bit depths. (88.2 and greater locked to 24 bit, or 352.8 and greater locked to 32 bit). So to your question of whether or not Android forces things to behave certain ways, the answer is yes. Further support would probably require a few more details specific to your device, such as ... your device, your audio output detections log, any dongle DAC/transmitters (if used), your headphones, etc. Link to comment Share on other sites More sharing options...
7ni4F_ Posted July 31, 2023 Author Share Posted July 31, 2023 34 minutes ago, Fitzian said: LDAC (in a vacuum that only Sony knows the whereabouts of) should support 44.1, 48, 88.2, and 96kHz. Some devices/ROMs gate sample rates behind specific bit depths. (88.2 and greater locked to 24 bit, or 352.8 and greater locked to 32 bit). So to your question of whether or not Android forces things to behave certain ways, the answer is yes. Further support would probably require a few more details specific to your device, such as ... your device, your audio output detections log, any dongle DAC/transmitters (if used), your headphones, etc. I'm using a Poco F3 that has LineageOS installed (but this was also happening on stock rom), I'm using a FiiO BTR5 with an AKG K240 Studio. Link to comment Share on other sites More sharing options...
maxmp Posted July 31, 2023 Share Posted July 31, 2023 @7ni4F_ bluetooth codec and parameters are negotiated during the connection or/and start of playback and there is little (some level of unreliable options in Developer settings) we can do to change those. Link to comment Share on other sites More sharing options...
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