diff options
Diffstat (limited to 'intern/audaspace/FX/AUD_ButterworthFactory.cpp')
| -rw-r--r-- | intern/audaspace/FX/AUD_ButterworthFactory.cpp | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/intern/audaspace/FX/AUD_ButterworthFactory.cpp b/intern/audaspace/FX/AUD_ButterworthFactory.cpp index 5edca302ece..97d85c8122f 100644 --- a/intern/audaspace/FX/AUD_ButterworthFactory.cpp +++ b/intern/audaspace/FX/AUD_ButterworthFactory.cpp @@ -39,7 +39,7 @@ #define BWPB41 0.76536686473 #define BWPB42 1.84775906502 -AUD_ButterworthFactory::AUD_ButterworthFactory(AUD_Reference<AUD_IFactory> factory, +AUD_ButterworthFactory::AUD_ButterworthFactory(boost::shared_ptr<AUD_IFactory> factory, float frequency) : AUD_DynamicIIRFilterFactory(factory), m_frequency(frequency) @@ -53,11 +53,11 @@ void AUD_ButterworthFactory::recalculateCoefficients(AUD_SampleRate rate, float omega = 2 * tan(m_frequency * M_PI / rate); float o2 = omega * omega; float o4 = o2 * o2; - float x1 = o2 + 2 * BWPB41 * omega + 4; - float x2 = o2 + 2 * BWPB42 * omega + 4; - float y1 = o2 - 2 * BWPB41 * omega + 4; - float y2 = o2 - 2 * BWPB42 * omega + 4; - float o228 = 2 * o2 - 8; + float x1 = o2 + 2.0f * (float)BWPB41 * omega + 4.0f; + float x2 = o2 + 2.0f * (float)BWPB42 * omega + 4.0f; + float y1 = o2 - 2.0f * (float)BWPB41 * omega + 4.0f; + float y2 = o2 - 2.0f * (float)BWPB42 * omega + 4.0f; + float o228 = 2.0f * o2 - 8.0f; float norm = x1 * x2; a.push_back(1); a.push_back((x1 + x2) * o228 / norm); |