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[Android 2.2+] CallRecorder - record phone calls from the phone line

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By skvalex, Senior Member on 12th January 2012, 01:32 PM
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23rd November 2019, 11:19 AM |#8091  
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Hi, thank you for this app, it is perfect. Using root method on Android 9, the recording quality is awesome.

I have a question about the license. I've read somewhere that there is a limit - the license is for up to three devices. Is that correct? Does the limit apply for both Google Play Unlocker and buying the app through your website?
25th November 2019, 08:37 AM |#8092  
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Hi @skvalex I have purchased the app yesterday.
The FAQ says that I will be able to activate up to three devices at the same time. Do I have to use the same google account in all these devices? I want to activate the app in my mom's and brother's device and I don't want my google account to be logged in in their device.[COLOR="Silver"]
25th November 2019, 07:14 PM |#8093  
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Quote:
Originally Posted by abhianand123

Hi @skvalex I have purchased the app yesterday.
The FAQ says that I will be able to activate up to three devices at the same time. Do I have to use the same google account in all these devices? I want to activate the app in my mom's and brother's device and I don't want my google account to be logged in in their device.

According to https://callrecorder.skvalex.com/clientarea, for activation:
Quote:

To activate license: in the left side menu of the app click 'Already purchased?' > 'Restore', then enter to your account of client area.

  • To activate license you need to have Play Store installed on your device
  • Ensure you're using the same gmail account as you used for purchase the app
  • Don't uninstall Unlocker after license verification
  • If you have issues with verifying license - contact me at [email protected]. Specify error number, attach screenshots if possible.

However, it isn't clear whether activation would persist if a different user account is used on the device afterwards.

@skvalex, could you perhaps clarify?
25th November 2019, 09:54 PM |#8094  
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For those of you using this app on rooted Pixel 3 android 10 using google FI... what are your settings?

I cant get it to work for the life of me :/ Reinstalled magisk module, changed to root setting, and disabled google Fi "IMS wifi calling"... I get "triangle Error notification" when trying to start recording during a call. My current settings are Root method, Qualcomm device, CAF, save as AMR, Stereo (yes I tried changing to mono and auto). App worked fine on my old rooted nexus 5x android 8.1. So far, it seems to crash no matter what I do for my pixel 3. Any suggestions?
26th November 2019, 04:57 PM |#8095  
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Quote:
Originally Posted by Lazerus625

For those of you using this app on rooted Pixel 3 android 10 using google FI... what are your settings?

I cant get it to work for the life of me :/ Reinstalled magisk module, changed to root setting, and disabled google Fi "IMS wifi calling"... I get "triangle Error notification" when trying to start recording during a call. My current settings are Root method, Qualcomm device, CAF, save as AMR, Stereo (yes I tried changing to mono and auto). App worked fine on my old rooted nexus 5x android 8.1. So far, it seems to crash no matter what I do for my pixel 3. Any suggestions?

I have used Google Fi and Pixel 3 for a year.. now am using Pixel 4 and Google Fi. The settings are the same and they have functioned the same. I am rooted, and have been able to use both Standard API as well as Root/CAF. To be honest... Standard API probably works the best (Voice Call Uplink+Downlink, MP3, Don't use AMR). *BUT IMS Wifi calling has to be disabled or I will get all sorts of weird calls not recording correctly that I could only assume was because it was using Wifi at the time.

If you are still having issues, I would recommend clearing app data, and then ensuring all the permissions are allowed. If that does not work, maybe try removing the magisk addon and the app, then rebooting, then installing the latest CallRecorder apk downloaded from the site. Set it up and test it. It should be working without the magisk addon. At that point, install the magisk addon if you desire it.
28th November 2019, 12:47 AM |#8096  
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I'm having the same issue... rooted on a pixel 4 xl here, android 10, installed the magisk module

I emailed the developer, will let you guys know what he says. He is normally very responsive.
28th November 2019, 10:27 PM |#8097  
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Any known good configurations for current LineageOS 16, without root, where you can hear both sides?
2nd December 2019, 06:27 PM |#8098  
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Quote:
Originally Posted by in_dmand

I'm having the same issue... rooted on a pixel 4 xl here, android 10, installed the magisk module

I emailed the developer, will let you guys know what he says. He is normally very responsive.

His response "You should use Standard API with Voice call uplink + downlink audio source on Pixel 4 XL"

Seems to be working great now
4th December 2019, 09:07 AM |#8099  
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I can confirm this is working on a Google Pixel 4 w/ Magisk root. I spent some time playing with the various settings and it seems the defaults are close (or very close) to optimal. The recording quality is so-so when recorded via the handset. Conversations are understandable but both sides of the call sound like they are being recorded in a bit of an echo chamber; kind of like what you would hear if you listened to a recording of music playing from a speaker.

A huge plus is that this works out of the box for recording over a Bluetooth headset. And with the headset, quality is significantly improved, but the trade-off is that volume is much lower. This can be managed by increasing the record volume in the settings to 200 or even 400%. This improves the volume of BT conversations but adds so much distortion to handset recordings that they are no longer usable. Small issues considering that this is the only app I know of that is working on a rooted Pixel 4.

Settings:
I recorded short calls with various settings, formats, levels, etc, and found that the best in terms of quality was:

Audio Source: Voice call uplink + downlink
Recording Format: WAV
Sample rate: 16000 Hz
Volume: 50%, 100%, 200% (depending)
When BT connected: do nothing

Changing the format to MP3 had a noticeable drop in audio quality. It intensified the echo chamber feel. Unchecking the "Don't use AMR driver" (meaning the driver would be used), caused recordings to not function. The app gave me a notification warning on the next call and re-enabled the checkbox on its own. Nice!

Changing the audio source to "Voice Communication" produced call recordings with no sound on either side. Using "Unprocessed" and "Default" produced recordings with a greatly diminished volume on the called party side and a somewhat reduced volume on the phone owner side. Perhaps using one of these with a 200% or 400% increased volume will yield ok results, but I didn't test.

Interestingly, changing the recording method to "root" doesn't work. No matter which subtype I choose (CAF, ALSA, MSM) I would always get the "Call Recorder can't record this call" notification.

Open questions I'm hoping someone could answer:

With a rooted phone, is it safe to completely disable the app notification? I know on non-rooted devices, Android will kill background apps that don't have a notification icon, but my understanding is that with the Magisk path, the recording app runs as a system app and those can never be auto-killed.

I like the option to encrypt the recordings, but is there information on what type of encryption is used, and how I could decrypt the files using a different, off-phone tool?

Thanks for all the awesome work!
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Yesterday, 12:19 AM |#8100  
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Hi guys.I have a Samsung S10+exynos(no root ANDROID 10)Does it work?If so,what settings?Thx in advance
Yesterday, 12:50 PM |#8101  
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very useful and woking great!
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call rec, call recording, callrec

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