Samsung "Professional Audio" for Android (Jack)

Started by utensil, October 17, 2014, 10:54:20 PM

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admin

#25
https://www.xda-developers.com/report-android-oreo-audio-latency/

Report: Android Oreo Update Worsened Android Audio Latency Issues
Android has had an audio latency issue that has negatively affected the operating system's reputation among audio and music creators. Many professional musicians have preferred to work on iOS devices when they needed to as opposed to Android for years, but this was something Google was aware of. Not only were they aware of it, but they were making progress to reduce the audio latency issue with their recent versions of Android. However, a new report from Superpowered shows that the audio latency issue has actually gotten worse with the Android 8.0 Oreo update.

The folks over at Superpowered recently tested the latency of audio from a Nexus 6P that was updated to Android 8.0 Oreo. They used Google's own "Rick'O'Rang app" (source and APK) and their in-house Latency Test (source and APK) applications. Their measurement methods are in fact different, but history has shown that the results have always been virtually identical. However, when testing the Android 8.0 Oreo update they noticed their own testing application was behaving strangely.

Normally they would do their tests and the logs would report "in, out, in out, in out" as they tested round-trip audio latency. However, with the Oreo update it was more like "in, in, in, in, out, out, out, out, in, in, in, etc." This raised some concerns as both the Google and the Superpowered latency applications were using only one buffer. But one buffer is not enough to cover five, therefore all measurements, on both apps become erratic and inaccurate.

Recommended Reading: Android's Audio Latency Problems

Their app showed a latency value fluctuation while Google's own application displayed good, plausible, and moreover, low latency values. Although, Google's glitch measurement feature suggested that something was wrong, many users simply overlooked this since it didn't raise enough concern. The folks over at Superpowered implemented a fix for this in their testing application and if Google decides to implement it, then theirs will be updated in the near future.

android 8.0

As you can see, on both the Nexus 6P as well as the Pixel XL, we're seeing much higher audio latency on Android 8.0 as compared to Android 7.0. This could be hardware related or vary across devices, as Reddit member u/sylocheed tested Superpowered's application on their Pixel 2 XL with their results showing that it was a little faster than the Nexus 6P and Pixel XL results, but it was still slower than Android Nougat's OpenSL ES.

http://superpowered.com/android-audio-latency-problem-just-got-worse
https://www.xda-developers.com/androids-audio-latency-problem/

admin

#26


I was at my local Best Buy where they had a new Samsung Galay TAB S3 running Android 7.01
https://www.bhphotovideo.com/c/product/1313987-REG/samsung_sm_t820nzkaxar_32gb_galaxy_tab_s3.html
the audio latency was very low, comparable to an iPad

the included Samsung SoundCamp app provides a lot of tools for writing songs

https://www.theverge.com/2017/3/22/15011164/galaxy-tab-s3-review-samsung

However a future Android 8 update ( that will surely arrive in 3 months) will probably have a negative impact  - with higher latency




admin

#28
new Samsung Galaxy TAB S3 running Android 7.01  - OLED screen stereo speakers - removable 2TB SD card USB-C
https://www.bhphotovideo.com/c/product/1313987-REG/samsung_sm_t820nzkaxar_32gb_galaxy_tab_s3.html
the audio latency very low, comparable to an iPad

https://www.vguitarforums.com/smf/index.php?topic=22456.0



admin

#29
https://superpowered.com/android-audio-latency-problem-just-got-worse
SAPA is dead
We interrupt our broadcast for a moment. We've removed SAPA (Samsung Professional Audio SDK) support from the Superpowered Latency Test app, because even it's latest update doesn't support 64-bit.

Maintaining a separate codebase and library for 32-bit devices with SAPA support is not worth the effort anymore. Fact, that the effort was too high for most developers anyway.

SAPA was an interesting try by Samsung to solve Android's audio latency problem, but unfortunately it never really took off. We've tried to support it as long as we could. Vaya con Dios old friend!

https://www.phonearena.com/reviews/iPhone-XS-Max-vs-Samsung-Galaxy-Note-9_id4568
Quotethe Apple IOS App Store has been offering tons of software for mobile musicians for years now. Apple got rid of audio latency problems long ago and you can hook your iPhone up to a guitar, a MIDI controller, or just use on-screen keys to produce music or add effects in real time. Again, this will not replace a recording studio, an amp, or an effects unit, but it's definitely an amazing thing to have at your fingertips, either for practice or experimentation.

Credit given where credit is due, Samsung got tired of waiting for Google to fix the audio latency issues of Android long ago and developed its own Samsung Professional Audio Driver. This made it possible to run real-time audio apps on Galaxy flagships, such as AmpliTube and Samsung's Soundcamp (a GarageBand knockoff). However, developer support for such apps on Android is extremely weak, the apps are few, and they are usually thin on features.

admin

#30
FWIW - Samsung no longer supports "SoundCamp" and it is now removed on their Android 8 and Android 9 updates for Galaxy Tab S3  - they ceased cross licensing the third party apps too (Thumbjam, IK Amplitube, Jordan Rudass MorphWiz" are history and no longer available from Samsung

All victim of the move to 64 bit