All times are UTC+01:00




Post new topic  Reply to topic  [ 16 posts ]  Go to page Previous 1 2
Author Message
 Post subject: Re: Just an idea
PostPosted: Wed Feb 08, 2023 8:48 am 

Joined: Fri May 27, 2022 9:33 pm
Posts: 34
Or a Steam Deck, tiny handheld pc with midrange laptop's peformance :)


Top
   
 Post subject: Re: Just an idea
PostPosted: Fri Aug 18, 2023 4:16 pm 

Joined: Sat Oct 10, 2009 11:00 am
Posts: 114
Quote:
Yes, but on Android there is no good way to get to the audio. If we could get access to audio from other programs it would be interesting, without that, it would require you to use a sound card for input, and that makes it not very useful.
Yes, you can.

Have a look at things like Poweramp Equalizer (standalone app)

It can take audio from any other known audio app and process it.
And with a toggle from adb (giving extra permissions) it can do all apps and process _all_ audio.


Top
   
 Post subject: Re: Just an idea
PostPosted: Fri Aug 18, 2023 10:00 pm 
Site Admin
User avatar

Joined: Mon Mar 17, 2008 1:40 am
Posts: 11185
Quote:
Quote:
Yes, but on Android there is no good way to get to the audio. If we could get access to audio from other programs it would be interesting, without that, it would require you to use a sound card for input, and that makes it not very useful.
Yes, you can.

Have a look at things like Poweramp Equalizer (standalone app)

It can take audio from any other known audio app and process it.
And with a toggle from adb (giving extra permissions) it can do all apps and process _all_ audio.
The big question is if this is just controlling an EQ that's already available in the phone's hardware or software, or that it actually grabs all the audio, changes it and then sends it back to the phone. So far I've only been able to find equalizers, nothing that really does anytihng more.

I don't know how to find out what they did exactly for this specific app.


Top
   
 Post subject: Re: Just an idea
PostPosted: Fri Aug 18, 2023 11:04 pm 
User avatar

Joined: Sun Dec 23, 2018 7:44 pm
Posts: 792
Location: Texas, USA
Quote:
The big question is if this is just controlling an EQ that's already available in the phone's hardware or software, or that it actually grabs all the audio, changes it and then sends it back to the phone. So far I've only been able to find equalizers, nothing that really does anytihng more.

I don't know how to find out what they did exactly for this specific app.
Looking back at this thing I linked a while ago https://github.com/ThePBone/RootlessJamesDSP
It mentions a DynamicsProcessing Android API. It also mentions using tricks to bypass some restrictions, and I don't know anything about that.

Quote:
Differences to other rootless FX apps
Regular rootless audio effect apps on the Play Store all essentially work the same way: Android has several default audio effects built into its operating system that these apps can use without any special permissions. Here's a list of those: https://developer.android.com/reference ... udioEffect.

Being restricted to these default built-in audio effects is problematic if you want to implement any advanced custom effects such as Viper or JDSP, because Android does not allow apps to access & modify the audio stream directly.

To work around this problem, RootlessJamesDSP uses a bunch of tricks to gain full access to the audio stream of other apps. This is done via Android's internal audio capture. This allows RootlessJamesDSP to apply its custom audio effects directly without relying on Android's built-in effects.

Unfortunately, these tricks are not 100% reliable and introduce some limitations. Apps such as Spotify block internal audio capture (they don't want people to record their songs), and because of that, RootlessJamesDSP cannot directly access the audio stream of that app. This is the reason why a special patch is required to disable this DRM restriction inside Spotify's app. Patches for other apps with these DRM restrictions do not exist, but are possible to do.


Top
   
 Post subject: Re: Just an idea
PostPosted: Fri Aug 18, 2023 11:15 pm 
Site Admin
User avatar

Joined: Mon Mar 17, 2008 1:40 am
Posts: 11185
Oh, I missed the "rootless" part of that one! It doesn't work on my phone so I guess I'll have to get a new one to test this; they only iist 2 phones on the site on which it's confirmed to work... not a lot.


Top
   
 Post subject: Re: Just an idea
PostPosted: Fri Aug 18, 2023 11:35 pm 
User avatar

Joined: Sun Dec 23, 2018 7:44 pm
Posts: 792
Location: Texas, USA
Quote:
Oh, I missed the "rootless" part of that one! It doesn't work on my phone so I guess I'll have to get a new one to test this; they only iist 2 phones on the site on which it's confirmed to work... not a lot.
Oh, good point. I saw Pixel and stopped there, cause that's what I use and love. Very little bloatware, unlike Samsung. These are the two most popular Andorid phones in the states.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 16 posts ]  Go to page Previous 1 2

All times are UTC+01:00


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Limited