Allow to choose a audio source

Choose audio from:
 MediaRecorder.AudioSource.CAMCORDER,
 MediaRecorder.AudioSource.DEFAULT,
 MediaRecorder.AudioSource.UNPROCESSED,
 MediaRecorder.AudioSource.MIC,
 MediaRecorder.AudioSource.VOICE_COMMUNICATION,
 MediaRecorder.AudioSource.VOICE_PERFORMANCE)

app/src/main/kotlin/com/simplemobiletools/voicerecorder/activities/SettingsActivity.kt

@@ -11,6 +11,7 @@ import com.simplemobiletools.commons.helpers.isTiramisuPlus
 import com.simplemobiletools.commons.models.RadioItem
 import com.simplemobiletools.voicerecorder.R
 import com.simplemobiletools.voicerecorder.extensions.config
+import com.simplemobiletools.voicerecorder.helpers.AUDIO_SOURCE
 import com.simplemobiletools.voicerecorder.helpers.BITRATES
 import com.simplemobiletools.voicerecorder.helpers.EXTENSION_M4A
 import com.simplemobiletools.voicerecorder.helpers.EXTENSION_MP3
@@ -39,6 +40,7 @@ class SettingsActivity : SimpleActivity() {
         setupSaveRecordingsFolder()
         setupExtension()
         setupBitrate()
+        setupAudioSource()
         setupRecordAfterLaunch()
         updateTextColors(settings_nested_scrollview)
 
@@ -172,4 +174,16 @@ class SettingsActivity : SimpleActivity() {
             config.recordAfterLaunch = settings_record_after_launch.isChecked
         }
     }
+
+    private fun setupAudioSource() {
+        settings_audio_source.text = config.getAudioSourceText(config.audio_source)
+        settings_audio_source_holder.setOnClickListener {
+            val items = AUDIO_SOURCE.map { RadioItem(it, config.getAudioSourceText(it)) } as ArrayList
+
+            RadioGroupDialog(this@SettingsActivity, items, config.audio_source) {
+                config.audio_source = it as Int
+                settings_audio_source.text = config.getAudioSourceText(config.audio_source)
+            }
+        }
+    }
 }

app/src/main/kotlin/com/simplemobiletools/voicerecorder/helpers/Config.kt

@@ -23,6 +23,20 @@ class Config(context: Context) : BaseConfig(context) {
         get() = prefs.getInt(EXTENSION, EXTENSION_M4A)
         set(extension) = prefs.edit().putInt(EXTENSION, extension).apply()
 
+    var audio_source: Int
+        get() = prefs.getInt(AUDIO_SRC, DEFAULT_AUDIO_SOURCE)
+        set(audio_source) = prefs.edit().putInt(AUDIO_SRC, audio_source).apply()
+
+    fun getAudioSourceText(audio_source: Int) = context.getString(when (audio_source) {
+        MediaRecorder.AudioSource.CAMCORDER -> R.string.audio_source_camcorder
+        MediaRecorder.AudioSource.DEFAULT ->  R.string.audio_source_default
+        MediaRecorder.AudioSource.UNPROCESSED -> R.string.audio_source_unprocessed
+        MediaRecorder.AudioSource.MIC -> R.string.audio_source_microphone
+        MediaRecorder.AudioSource.VOICE_COMMUNICATION -> R.string.audio_source_voice_communication
+        MediaRecorder.AudioSource.VOICE_PERFORMANCE -> R.string.audio_source_voice_performance
+        else -> R.string.audio_source_camcorder
+    })
+
     var bitrate: Int
         get() = prefs.getInt(BITRATE, DEFAULT_BITRATE)
         set(bitrate) = prefs.edit().putInt(BITRATE, bitrate).apply()

app/src/main/kotlin/com/simplemobiletools/voicerecorder/helpers/Constants.kt

@@ -2,6 +2,7 @@ package com.simplemobiletools.voicerecorder.helpers
 
 import android.annotation.SuppressLint
 import android.content.ContentUris
+import android.media.MediaRecorder
 import android.net.Uri
 import android.provider.MediaStore
 import android.provider.MediaStore.Audio.Media
@@ -18,6 +19,15 @@ const val EXTENSION_M4A = 0
 const val EXTENSION_MP3 = 1
 const val EXTENSION_OGG = 2
 
+val AUDIO_SOURCE = arrayListOf(
+    MediaRecorder.AudioSource.CAMCORDER,
+    MediaRecorder.AudioSource.DEFAULT,
+    MediaRecorder.AudioSource.UNPROCESSED,
+    MediaRecorder.AudioSource.MIC,
+    MediaRecorder.AudioSource.VOICE_COMMUNICATION,
+    MediaRecorder.AudioSource.VOICE_PERFORMANCE)
+const val DEFAULT_AUDIO_SOURCE = MediaRecorder.AudioSource.CAMCORDER
+
 val BITRATES = arrayListOf(32000, 64000, 96000, 128000, 160000, 192000, 256000, 320000)
 const val DEFAULT_BITRATE = 128000
 const val SAMPLE_RATE = 44100
@@ -33,6 +43,7 @@ const val TOGGLE_WIDGET_UI = "toggle_widget_ui"
 const val HIDE_NOTIFICATION = "hide_notification"
 const val SAVE_RECORDINGS = "save_recordings"
 const val EXTENSION = "extension"
+const val AUDIO_SRC = "audio_source"
 const val BITRATE = "bitrate"
 const val RECORD_AFTER_LAUNCH = "record_after_launch"
 

app/src/main/kotlin/com/simplemobiletools/voicerecorder/recorder/MediaRecorderWrapper.kt

@@ -10,7 +10,7 @@ import java.io.FileDescriptor
 class MediaRecorderWrapper(val context: Context) : Recorder {
 
     private var recorder = MediaRecorder().apply {
-        setAudioSource(MediaRecorder.AudioSource.CAMCORDER)
+        setAudioSource(context.config.audio_source)
         setOutputFormat(context.config.getOutputFormat())
         setAudioEncoder(context.config.getAudioEncoder())
         setAudioEncodingBitRate(context.config.bitrate)

app/src/main/kotlin/com/simplemobiletools/voicerecorder/recorder/Mp3Recorder.kt

@@ -4,7 +4,6 @@ import android.annotation.SuppressLint
 import android.content.Context
 import android.media.AudioFormat
 import android.media.AudioRecord
-import android.media.MediaRecorder
 import com.naman14.androidlame.AndroidLame
 import com.naman14.androidlame.LameBuilder
 import com.simplemobiletools.commons.extensions.showErrorToast
@@ -33,7 +32,7 @@ class Mp3Recorder(val context: Context) : Recorder {
 
     @SuppressLint("MissingPermission")
     private val audioRecord = AudioRecord(
-        MediaRecorder.AudioSource.CAMCORDER,
+        context.config.audio_source,
         SAMPLE_RATE,
         AudioFormat.CHANNEL_IN_MONO,
         AudioFormat.ENCODING_PCM_16BIT,

app/src/main/res/layout/activity_settings.xml

@@ -235,6 +235,27 @@
 
                 </RelativeLayout>
 
+                <RelativeLayout
+                    android:id="@+id/settings_audio_source_holder"
+                    style="@style/SettingsHolderTextViewStyle"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:background="@drawable/ripple_bottom_corners">
+                    <com.simplemobiletools.commons.views.MyTextView
+                        android:id="@+id/settings_audio_source_label"
+                        style="@style/SettingsTextLabelStyle"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/audio_source" />
+
+                    <com.simplemobiletools.commons.views.MyTextView
+                        android:id="@+id/settings_audio_source"
+                        style="@style/SettingsTextValueStyle"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_below="@+id/settings_audio_source_label"
+                        tools:text="128 kbps" />
+                </RelativeLayout>
                 <RelativeLayout
                     android:id="@+id/settings_bitrate_holder"
                     style="@style/SettingsHolderTextViewStyle"

app/src/main/res/values/strings.xml

@@ -19,12 +19,20 @@
     <!-- Settings -->
     <string name="try_hiding_notification">Try hiding the recording notification</string>
     <string name="save_recordings_in">Save recordings in</string>
+    <string name="audio_source">Audio Source</string>
     <string name="bitrate">Bitrate</string>
     <string name="record_after_launch">Start recording automatically after launching the app</string>
     <!-- FAQ -->
     <string name="faq_1_title">Can I hide the notification icon during recording?</string>
     <string name="faq_1_text">Well, it depends. While you use your device it is no longer possible to fully hide the notifications of apps like this.
         If you check the proper setting item, the app will do its best to hide it. You can hide it on the lockscreen though, if you disable the displaying of sensitive notifications in your device settings.</string>
+    <!-- Settings Audio source selection -->
+    <string name="audio_source_camcorder">Camera (default)</string>
+    <string name="audio_source_default">Android default</string>
+    <string name="audio_source_unprocessed">Unprocessed</string>
+    <string name="audio_source_microphone">Microphone</string>
+    <string name="audio_source_voice_communication">Voice communication</string>
+    <string name="audio_source_voice_performance">Voice performance</string>
     <!--
         Haven't found some strings? There's more at
         https://github.com/SimpleMobileTools/Simple-Commons/tree/master/commons/src/main/res