From e9097114bb9fb531393c1cc91bfca258f1347fc4 Mon Sep 17 00:00:00 2001
From: woheller69 <wolfgang.heller@web.de>
Date: Sun, 20 Feb 2022 16:14:26 +0100
Subject: [PATCH] make stream volume (gain) and adjustable parameter

---
 .../main/java/org/woheller69/audiometry/PerformSingleTest.java | 3 ++-
 app/src/main/java/org/woheller69/audiometry/PerformTest.java   | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/org/woheller69/audiometry/PerformSingleTest.java b/app/src/main/java/org/woheller69/audiometry/PerformSingleTest.java
index 7bd4c8d..38e3bdb 100644
--- a/app/src/main/java/org/woheller69/audiometry/PerformSingleTest.java
+++ b/app/src/main/java/org/woheller69/audiometry/PerformSingleTest.java
@@ -13,6 +13,7 @@
 import android.widget.TextView;
 import android.widget.Toast;
 import static org.woheller69.audiometry.PerformTest.testFrequencies;
+import static org.woheller69.audiometry.PerformTest.gain;
 
 import androidx.appcompat.app.AppCompatActivity;
 
@@ -163,7 +164,7 @@ protected void onCreate(Bundle savedInstanceState) {
     @Override
     public void onResume() {
         AudioManager am = (AudioManager)getSystemService(AUDIO_SERVICE);
-        am.setStreamVolume(AudioManager.STREAM_MUSIC, 9,  0);
+        am.setStreamVolume(AudioManager.STREAM_MUSIC, gain,  0);
         testThread = new testThread();
         testThread.start();
         super.onResume();
diff --git a/app/src/main/java/org/woheller69/audiometry/PerformTest.java b/app/src/main/java/org/woheller69/audiometry/PerformTest.java
index 6029cbf..e793e5d 100644
--- a/app/src/main/java/org/woheller69/audiometry/PerformTest.java
+++ b/app/src/main/java/org/woheller69/audiometry/PerformTest.java
@@ -25,6 +25,7 @@ public class PerformTest extends AppCompatActivity {
     private final int sampleRate = 44100;
     private final int numSamples = duration * sampleRate;
     private final int volume = 32767;
+    static public int gain = 9;
     static public final int[] testFrequencies = {125, 250, 500, 1000, 2000, 3000, 4000, 6000, 8000};
     static final float[] correctiondBSPLtodBHL ={19.7f,9.0f,2.0f,0f,-3.7f,-8.1f,-7.8f, 2.1f,10.2f}; //estimated from  ISO226:2003 hearing threshold. Taken from https://github.com/IoSR-Surrey/MatlabToolbox/blob/master/%2Biosr/%2Bauditory/iso226.m Corrected to value=0 @1000Hz
     private boolean heard = false;
@@ -236,7 +237,7 @@ protected void onCreate(Bundle savedInstanceState) {
     @Override
     public void onResume() {
         AudioManager am = (AudioManager)getSystemService(AUDIO_SERVICE);
-        am.setStreamVolume(AudioManager.STREAM_MUSIC, 9,  0);
+        am.setStreamVolume(AudioManager.STREAM_MUSIC, gain,  0);
         testThread = new testThread();
         testThread.start();
         super.onResume();