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Changed the result of MidiMessage::getMidiNoteInHertz to correctly map midi 69 to 440Hz

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This commit is contained in:
jules 2012-10-23 12:43:09 +01:00
parent 896e55ae27
commit 70257e902f
4 changed files with 11 additions and 17 deletions
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18
modules/juce_audio_formats/sampler/juce_Sampler.cpp
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@ -23,7 +23,7 @@
==============================================================================
*/
//==============================================================================
SamplerSound::SamplerSound (const String& name_,
AudioFormatReader& source,
const BigInteger& midiNotes_,
@ -61,7 +61,6 @@ SamplerSound::~SamplerSound()
{
}
//==============================================================================
bool SamplerSound::appliesToNote (const int midiNoteNumber)
{
return midiNotes [midiNoteNumber];
@ -72,7 +71,6 @@ bool SamplerSound::appliesToChannel (const int /*midiChannel*/)
return true;
}
//==============================================================================
SamplerVoice::SamplerVoice()
: pitchRatio (0.0),
@ -103,10 +101,8 @@ void SamplerVoice::startNote (const int midiNoteNumber,
if (sound != nullptr)
{
const double targetFreq = MidiMessage::getMidiNoteInHertz (midiNoteNumber);
const double naturalFreq = MidiMessage::getMidiNoteInHertz (sound->midiRootNote);
pitchRatio = (targetFreq * sound->sourceSampleRate) / (naturalFreq * getSampleRate());
pitchRatio = pow (2.0, (midiNoteNumber - sound->midiRootNote) / 12.0)
* sound->sourceSampleRate / getSampleRate();
sourceSamplePosition = 0.0;
lgain = velocity;
@ -127,13 +123,9 @@ void SamplerVoice::startNote (const int midiNoteNumber,
}
if (sound->releaseSamples > 0)
{
releaseDelta = (float) (-pitchRatio / sound->releaseSamples);
}
else
{
releaseDelta = 0.0f;
}
}
}
@ -162,9 +154,7 @@ void SamplerVoice::controllerMoved (const int /*controllerNumber*/,
//==============================================================================
void SamplerVoice::renderNextBlock (AudioSampleBuffer& outputBuffer, int startSample, int numSamples)
{
const SamplerSound* const playingSound = static_cast <SamplerSound*> (getCurrentlyPlayingSound().get());
if (playingSound != nullptr)
if (const SamplerSound* const playingSound = static_cast <SamplerSound*> (getCurrentlyPlayingSound().get()))
{
const float* const inL = playingSound->data->getSampleData (0, 0);
const float* const inR = playingSound->data->getNumChannels() > 1