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USB Data Communication with AOAP Talking to Android …
https://stackoverflow.com/questions/26511281/usb-data-communication-with-aoap-talking-to-android-kitkat
Some Android phones Audio Class bMaxPacketSize is defined as 364 bytes, which is more than enough to achieve 44.1Khz Sampling Frequency. Ideally only ~192 bytes is required to achieve this. Some host USB Audio Class driver might have only reserved 256 bytes, and they might not have looked at bMaxPacketSize when they enumerate the PIPE.
capturing audio using libusb in Android - Stack Overflow
https://stackoverflow.com/questions/41044831/capturing-audio-using-libusb-in-android
Finally I am able to get USB mic working on Kitkat. For those who are struggling with USB audio on android Kitkat version, below is short description of what I followed: I took reference from code usbaudio-android-demo. This code is written for a specific device ie. TI's PCM2900C and has capture and playback using same device.
4.4 kitkat - How to stream audio from PC to android device ...
https://android.stackexchange.com/questions/122879/how-to-stream-audio-from-pc-to-android-device-through-usb
4.4-kitkat 5.0-lollipop usb audio streaming. Share. Improve this question. Follow edited Apr 13 '17 at 12:18. Community Bot. 1. asked Sep 12 '15 at 3:42. David Wong David Wong. 1 1 1 silver badge 1 1 bronze badge. 0. Add a comment | 1 Answer Active Oldest Votes. 0 ...
Android KitKat - Android Developers
https://developer.android.com/about/versions/kitkat
KitKat streamlines every major component to reduce memory use and introduces new APIs and tools to help you create innovative, responsive, memory-efficient applications. OEMs building the next generation of Android devices can take advantage of targeted recommendations and options to run Android 4.4 efficiently, even on low-memory devices.
USB Audio Output - Poweramp Feature Requests - …
https://forum.powerampapp.com/topic/5950-usb-audio-output/
It would be great if it can work like USB Audio Player Pro and talk directly to the USB DAC in addition to via the android system sound. Kit kat broke system sound USB DAC support on quite a few phones including mine (LG G2) but USB Player Pro works fine. Thanks. 2 weeks later... KUSOsan Approved Members 76 Posted May 24, 2014
[Android] Support USB Audio directly - bypassing t ...
https://community.spotify.com/t5/Live-Ideas/Android-Support-USB-Audio-directly-bypassing-the-Android-Driver/idi-p/1607461
This idea is a version of "Support USB Audio through the USB Audio Player PRO driver" without the 3rd party partnership. It was written in response to @meahtenoha's review. Both ideas originate from the USB audio out OTG support thread. External USB headphone DAC/amps for Android phones are becoming a thing.
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