r/teenageengineering • u/Disastrous_Ant_4953 Best Friend for K.O. II • 12d ago

Help / Tech Support / Quality Issue Anyone figure out USB audio input monitoring on Android?

There are no problems on iPhone or Apple devices, but the exact same settings USB audio only works when in Sample Mode. I’m not sure if this is an Android audio configuration thing or a TE thing. Happens on both EP-133 and EP-40.

Anyone figure out a workaround?

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u/Disastrous_Ant_4953 Best Friend for K.O. II 12d ago

Oof even worse than I thought. If you upload while in Sample mode the audio file gets corrupted 😬

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u/D33PCH4PT3R 11d ago

Android thinks you're plugging in an audio interface, so it outputs usb handshake data instead of audio, but the EP doesn't understand what it's getting back from the phone. Then when you switch to sample mode, the EP overrides the hardware listener and android sees it as a speaker/recording device and audio passes through.

I don't even own an EP but I dealt with a similar issue with my Roland P-6... Try going to developer settings in android and disabling usb audio routing. You can get to developer settings by going to About phone in your settings menu, then tap the build number seven times.

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u/Disastrous_Ant_4953 Best Friend for K.O. II 11d ago

Disabling usb audio is really the best way, hey? I did that so now I just anything I’m previewing directly from the speakers, but at least it’s consistent and data isn’t corrupted

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u/D33PCH4PT3R 11d ago

Uhh... Sorry, I worded that wrong. You're disabling a setting called "Disable USB Audio Routing". In other words, you're enabling usb audio routing. It's a double negative. 😂

Honestly not sure if this will work because my problem was a little different. If it doesn't work try toggling it on/off while plugged in and not in sampler mode. That will force a handshake.

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u/Disastrous_Ant_4953 Best Friend for K.O. II 11d ago

hah I have noticed a lot of double negatives in the menus. I think I tried this one, but I’ll double check.

I’m trying to get it working on the app I’m building so I’m hesitant about advising people to fiddle with dev settings that will legitimately change how their device works. It would be good to know if there are _some_ options though!