For some, VOICECALL is effective, and for some, many others. But at minimum we can try out.
On OnePlus ), which for some cause sleeps for 2 seconds on the UI thread in between prepare and commence phone calls of the mediaRecorder. It performs fantastic, and when I did something similar (wait around making use of Handler. postDelayed for 1 next), it worked fantastic much too.
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The comment that was penned there is “At times prepare normally takes some time to full”. On Galaxy S7 with Android eight, I have unsuccessful to get sound of the other facet for outgoing calls AND incoming calls (even with MIC and speaker), no make a difference what I did, nevertheless the application I’ve stated worked great.
Reveal tracks with clients and others
To enable you try out my POC of connect with recording, I’ve printed an open up source github repository in this article , getting a sample that will file a solitary simply call, and allow you listen to the most modern one, if all works well. This “ViktorDegtyarev – CallRecLib” SDK , which won’t seem to operate at all, and crashes on numerous Android variations. download link These two aged sample tasks : rvoix , esnyder-callrecorder , both of those are unsuccessful to actually report.
The second doesn’t even feel to perform on Android six. aykuttasil – CallRecorder sample and axet – android-call-recorder sample – both of those, just like on my POC, never have any tweaking except for AudioSource, and mainly https://apps.apple.com/us/app/call-recorder-icall/id1447098963?mt=8 because of this they fails to record on some scenarios, these as OnePlus 2 output-audio of outgoing phone calls. Most 3rd bash applications only present the AudioSource tweaking, but some (like “boldbeast” do supply far more. One case in point is ” Automatic Get in touch with Recorder ” which has “configuration” (ten values to opt for from, initial is “default” and “technique” (5 vales to pick out from, very first is “default”.
Those people applications almost certainly do not want other individuals to have an understanding of what those people configurations suggest, so they place general names. Or, it can be just too sophisticated for anyone (in particular for end users), so they generalize the names. There is an API of “setMode” below , but it doesn’t feel to modify on calling it.
I was contemplating of maybe change the “channel” of exactly where the phone is remaining used, this way, but it does not get the job done. It stays on the value of “two” all through phone, which is MODEINCALL . There are tailored parameters that are accessible for a variety of devices (each individual OEM and its have parameters), which can be established here and perhaps even by using JNI ( in this article and in this article ) , but I do not get wherever to get this info from (meaning which pairs of key-worth are offered). I have searched in a good deal of areas, but couldn’t locate any web site that talks about which achievable parameters are out there, and for which gadgets.
I was considering of making use of AudioRecord alternatively of MediaRecorder class for recording, thinking that it really is a bit reduced level, so it could give me extra ability and accessibility to custom-made abilities, but it appears to be extremely similar to MediaRecorder, and even use the exact same audio sources (example in this article ). Another attempt I experienced with small degree API, was even further more, of utilizing JNI (OpenSL ES for Android). For this, I couldn’t come across a lot information and facts (other than here and right here ), and only uncovered the two samples of Google right here (termed “audio echo” and “indigenous audio”, which are not about recording seem, or at minimum I you should not see them manifest. Android P might have official way to document phone calls (go through here and here ).
Testing on my Android P DP3 machine (Pixel 2), I could report the two sides great in both equally incoming and outgoing phone calls, working with “DEFAULT” as audio source, so maybe the API will eventually be official and do the job on all Android versions. I wrote about it right here and listed here . I was thinking that it’s possible the Visualizer class could be a workaround of recording, but in accordance to some StackOverflow publish ( listed here ), the high quality it really small, so I determined that possibly I shouldn’t try it. Additionally I could not discover a sample of how to report from it.
I’ve found some parameters that might be obtainable on some gadgets, in this article (uncovered from right here ), all start off with “AUDIOPARAMETER”, but testing on Galaxy S7, all returned vacant string. I have also uncovered this internet site , that gave me the strategy of using audioManager.