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added a separate volume control and the project builds in el capitan #3

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added a separate volume control and the project builds in el capitan #3

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be005fa
Updated for Lion - SoundBankFSSpec to SoundBankURL - 10.5 base target.
n9yty Aug 27, 2011
7554357
Another tweak - use autorelease on NSURL
n9yty Aug 29, 2011
2b6de4d
Seems to be working now...
n9yty Aug 29, 2011
3aebd01
XCode project now builds on Lion
May 27, 2012
ded0d95
add separate volume control for the synth
Jan 17, 2016
18a59c9
update README with basic info and screenshot
szTheory Apr 10, 2018
c30145f
README fix image
szTheory Apr 10, 2018
909ca20
README fix formatting
szTheory Apr 10, 2018
32113d4
Update build for MacOS 10.13.4 High Sierra
szTheory Apr 10, 2018
8ea2fd3
update README for MacOS 10.13.4 High Sierra
szTheory Apr 10, 2018
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3 changes: 3 additions & 0 deletions AudioSystem.h
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,9 @@ typedef struct {
- (MusicDeviceInstrumentID)currentInstrumentOnChannel:(int)channel;
- (void)setInstrument:(MusicDeviceInstrumentID)instrumentID forChannel:(int)channel;

- (float)getVolume;
- (void)setVolume:(float)value;

- (float)getFilterCutoffMin;
- (float)getFilterCutoffMax;
- (float)getFilterCutoff;
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38 changes: 31 additions & 7 deletions AudioSystem.m
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Original file line number Diff line number Diff line change
Expand Up @@ -77,23 +77,25 @@ - (void)setUpAudio;
// This takes the file and attempts to load it into the synth unit
- (BOOL)openFile:(NSString*)filename
{
FSSpec fsSpec;
AudioUnit synthUnit;
OSStatus error;
int i;

if (![filename makeFSSpec:&fsSpec]) return NO;

NSURL *fileURL;

fileURL = [NSURL fileURLWithPath:filename];

if (!fileURL) return NO;

AUGraphStop(graph);

AUGraphGetNodeInfo (graph, synthNode, NULL, NULL, NULL, &synthUnit);
error = AudioUnitSetProperty (
synthUnit,
kMusicDeviceProperty_SoundBankFSSpec, kAudioUnitScope_Global,
kMusicDeviceProperty_SoundBankURL, kAudioUnitScope_Global,
0,
&fsSpec, sizeof (fsSpec)
&fileURL, sizeof(fileURL)
);

AUGraphStart(graph);

if (error) return NO;
Expand Down Expand Up @@ -313,6 +315,28 @@ - (float)getFilterCutoffMax
return info.maxValue;
}

- (float)getVolume
{
AudioUnit volumeUnit;
float value;

AUGraphGetNodeInfo (graph, outputNode, NULL, NULL, NULL, &volumeUnit);

AudioUnitGetParameter (volumeUnit, kHALOutputParam_Volume, kAudioUnitScope_Output, 0, &value);

return value;
}

- (void)setVolume:(float)value
{
AudioUnit volumeUnit;

AUGraphGetNodeInfo (graph, outputNode, NULL, NULL, NULL, &volumeUnit);

AudioUnitSetParameter(volumeUnit, kHALOutputParam_Volume, kAudioUnitScope_Output, 0, value, 0);
}


- (float)getFilterCutoff
{
AudioUnit filterUnit;
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79 changes: 0 additions & 79 deletions English.lproj/MainMenu.nib/classes.nib
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549 changes: 549 additions & 0 deletions English.lproj/MainMenu.nib/designable.nib
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20 changes: 0 additions & 20 deletions English.lproj/MainMenu.nib/info.nib
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Binary file modified English.lproj/MainMenu.nib/keyedobjects.nib
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2 changes: 1 addition & 1 deletion Info.plist
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@
<key>CFBundleIconFile</key>
<string>AppIcon</string>
<key>CFBundleIdentifier</key>
<string>com.notahat.SimpleSynth</string>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
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5 changes: 5 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
# SimpleSynth - A MIDI synth for Mac

I added a volume control slider and updated the project to build for MacOS 10.13.4 High Sierra.

![38577945-715d8320-3cd0-11e8-801e-3fa0b0b9b03e.png](https://user-images.githubusercontent.com/28652/38577945-715d8320-3cd0-11e8-801e-3fa0b0b9b03e.png)
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