Rowdyhorse4 Posted March 17, 2021 Share Posted March 17, 2021 Poweramp Build 883-893 Oneplus 8 Pro (OxygenOS11 Latest stable) Hey, When i tested the hi res output of 96khz/24 to my Dragonfly cobalt via USB Audio, the Dragonfly only registered 48Khz despite Power-amp saying that its delivering 96Khz audio (this was tested with UAPP uninstalled). When tested using UAPP, the Dragonfly registered 96khz. Is this a bug or am i doing something wrong? Quote Link to comment Share on other sites More sharing options...
andrewilley Posted March 17, 2021 Share Posted March 17, 2021 What does PA show in the Audio Info screen? (long-press on the metadata line at the bottom of the screen during playback) Andre Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted March 17, 2021 Author Share Posted March 17, 2021 @andrewilley Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted March 17, 2021 Author Share Posted March 17, 2021 eh, seems the attachement didn't pass through, give me one minute Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted March 17, 2021 Author Share Posted March 17, 2021 there we go Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted March 17, 2021 Author Share Posted March 17, 2021 Poweramp reports that it is sending 96khz but Dragonfly only registers it as 48khz so i assume that Poweramp hasn't bypassed android's built in mixer. Quote Link to comment Share on other sites More sharing options...
maxmp Posted March 18, 2021 Share Posted March 18, 2021 System reports 96khz to Poweramp. Still, the direct output often limited just to one instance, thus if any other player/audio source uses it or used recently and not released, you’ll get standard resolution - though it should show 48khz then. Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted March 18, 2021 Author Share Posted March 18, 2021 @maxmp let me try it again after a system reset. Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted March 18, 2021 Author Share Posted March 18, 2021 (edited) Dragonfly color is still reporting 48kHz after restart as well (and no other application running) though Poweramp still reports as 96kHz being pushed. Its like the android mixer system is still intercepting Poweramp's audio at the end. Edited March 18, 2021 by Rowdyhorse4 Quote Link to comment Share on other sites More sharing options...
John Titor Posted March 18, 2021 Share Posted March 18, 2021 You can try checking the output sample rate manually by ADB. On an adb shell run `dumpsys media.audio_flinger`. Then scroll down to the Direct output info, you can see the output sample rate there. Quote Link to comment Share on other sites More sharing options...
maxmp Posted March 19, 2021 Share Posted March 19, 2021 @Someguyonline right, this gives (saying) 95% accuracy as 5% of the devices report invalid data there (both hi-res may be played and low res reported and vice versa). Actual parameters in this case are visible by analyzing captured audio and playing 20-96khz sweeps. Quote Link to comment Share on other sites More sharing options...
John Titor Posted March 19, 2021 Share Posted March 19, 2021 1 hour ago, maxmp said: @Someguyonline right, this gives (saying) 95% accuracy as 5% of the devices report invalid data there (both hi-res may be played and low res reported and vice versa). Actual parameters in this case are visible by analyzing captured audio and playing 20-96khz sweeps. Yeah, on my MTK based Redmi (MTK hi-fi), for some reason, I don't even see any indication that it's 192kHz output in dumpsys log. But Poweramp still reports it's 192kHz. But on the one with Qualcomm (Direct HD), I can see the output is 192kHz (matches with the info in Poweramp). Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted March 19, 2021 Author Share Posted March 19, 2021 @Someguyonline let me give it a try Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 14, 2021 Author Share Posted April 14, 2021 (edited) [Debug Log Removed due to it being done wrong and also wasting space. Updated new debug log at the bottom via txt file] @maxmp@John Titor Edited April 15, 2021 by Rowdyhorse4 Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 14, 2021 Author Share Posted April 14, 2021 This is the adb dump for audio flinger. All my music apps (Spotify, Tidal and Poweramp) displays 48khz on dragonfly (and i persume android auto as well) despite Poweramp reporting 96khz (example). only UAPP seems to bypass this issue all together. Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 15, 2021 Author Share Posted April 15, 2021 so... Any solutions to this? or none from Poweramp's side? Quote Link to comment Share on other sites More sharing options...
andrewilley Posted April 15, 2021 Share Posted April 15, 2021 You take four weeks to reply, and then expect a solution in 24 hours? As this is a very specialised and expensive bit of kit, I doubt Max has one to hand to do any testing. Andre Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 15, 2021 Author Share Posted April 15, 2021 (edited) 9 minutes ago, andrewilley said: You take four weeks to reply, and then expect a solution in 24 hours? As this is a very specialised and expensive bit of kit, I doubt Max has one to hand to do any testing. Andre Ah I'm sorry, It was not my intention to be rude or anything, if it was passed that way i'm truly sorry. Social skills isn't one of my strong point hahaha. alright thanks for the heads up though. yeah its expensive kit though from looking around it seems that people are saying that android OS just hijacks audio streams and puts it through its 48khz mixer unless you use apps that have specific drivers that support DIRECT. though i'm not an expert in this matter haha Edited April 15, 2021 by Rowdyhorse4 Quote Link to comment Share on other sites More sharing options...
andrewilley Posted April 15, 2021 Share Posted April 15, 2021 42 minutes ago, Rowdyhorse4 said: Ah I'm sorry, It was not my intention to be rude or anything, Don't worry about it, it just seemed maybe a little bit early to be chasing. Hopefully your log will give Max some ideas, but if the hardware required specific code to drive it directly, that may not be something we wants to do for lots of individual products. Andre Quote Link to comment Share on other sites More sharing options...
John Titor Posted April 15, 2021 Share Posted April 15, 2021 On 4/14/2021 at 12:18 PM, Rowdyhorse4 said: This is the adb dump for audio flinger. All my music apps (Spotify, Tidal and Poweramp) displays 48khz on dragonfly (and i persume android auto as well) despite Poweramp reporting 96khz (example). only UAPP seems to bypass this issue all together. Hmm, from the log, I don't see a direct output thread as I expected. And Android mixer kicking in is normal. Don't worry about that. The weird thing in my opinion is that the logs say there were no USB input nor any USB output threads.... However I am not an expert on this, and I won't be able to assist understanding the logs further. Maybe Max would be able to shed some light on this.... I would suggest waiting for his input. Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 15, 2021 Author Share Posted April 15, 2021 2 minutes ago, John Titor said: Hmm, from the log, I don't see a direct output thread as I expected. And Android mixer kicking in is normal. Don't worry about that. The weird thing in my opinion is that the logs say there were no USB input nor any USB output threads.... However I am not an expert on this, and I won't be able to assist understanding the logs further. Maybe Max would be able to shed some light on this.... I would suggest waiting for his input. oh lol thats because I was using USB debugging and Dragonfly is a USB device so it wasn't connected. holy fuck now that i realize this is an absolute retard moment for me. let me pull up the flinger via Wireless ADB... once i figure out how to make it work Quote Link to comment Share on other sites More sharing options...
John Titor Posted April 15, 2021 Share Posted April 15, 2021 Lol haha, but please don't post the log from there directly here. Save it into a txt file and drop it here. It's just that.... it's making the page too long and I have to scroll all the way to the bottom to reply Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 15, 2021 Author Share Posted April 15, 2021 1 minute ago, John Titor said: Lol haha, but please don't post the log from there directly here. Save it into a txt file and drop it here. It's just that.... it's making the page too long and I have to scroll all the way to the bottom to reply standby, also will do, Good advice. this is the first time debugging for me haha Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 15, 2021 Author Share Posted April 15, 2021 Okay, Here's the updated Debug Log via Wireless ADB and music continuously playing through the USB-C Dragonfly DAC. @John Titor Debug.txt Quote Link to comment Share on other sites More sharing options...
Rowdyhorse4 Posted April 15, 2021 Author Share Posted April 15, 2021 (edited) I see mentions of the 96khz Audio but it seems that android is assigned "AUDIO_DEVICE_OUT_USB_HEADSET" to a 48khz stream. not the 96khz one as per Poweramp... Edited April 15, 2021 by Rowdyhorse4 Quote Link to comment Share on other sites More sharing options...
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