| 79 | |
| 80 | |
| 81 | bool stereoEnhancerEffect::processAudioBuffer( sampleFrame * _buf, |
| 82 | const fpp_t _frames ) |
| 83 | { |
| 84 | |
| 85 | // This appears to be used for determining whether or not to continue processing |
| 86 | // audio with this effect |
| 87 | double out_sum = 0.0; |
| 88 | |
| 89 | float width; |
| 90 | int frameIndex = 0; |
| 91 | |
| 92 | |
| 93 | if( !isEnabled() || !isRunning() ) |
| 94 | { |
| 95 | return( false ); |
| 96 | } |
| 97 | |
| 98 | const float d = dryLevel(); |
| 99 | const float w = wetLevel(); |
| 100 | |
| 101 | for( fpp_t f = 0; f < _frames; ++f ) |
| 102 | { |
| 103 | |
| 104 | // copy samples into the delay buffer |
| 105 | m_delayBuffer[m_currFrame][0] = _buf[f][0]; |
| 106 | m_delayBuffer[m_currFrame][1] = _buf[f][1]; |
| 107 | |
| 108 | // Get the width knob value from the Stereo Enhancer effect |
| 109 | width = m_seFX.wideCoeff(); |
| 110 | |
| 111 | // Calculate the correct sample frame for processing |
| 112 | frameIndex = m_currFrame - width; |
| 113 | |
| 114 | if( frameIndex < 0 ) |
| 115 | { |
| 116 | // e.g. difference = -10, frameIndex = DBS - 10 |
| 117 | frameIndex += DEFAULT_BUFFER_SIZE; |
| 118 | } |
| 119 | |
| 120 | //sample_t s[2] = { _buf[f][0], _buf[f][1] }; //Vanilla |
| 121 | sample_t s[2] = { _buf[f][0], m_delayBuffer[frameIndex][1] }; //Chocolate |
| 122 | |
| 123 | m_seFX.nextSample( s[0], s[1] ); |
| 124 | |
| 125 | _buf[f][0] = d * _buf[f][0] + w * s[0]; |
| 126 | _buf[f][1] = d * _buf[f][1] + w * s[1]; |
| 127 | out_sum += _buf[f][0]*_buf[f][0] + _buf[f][1]*_buf[f][1]; |
| 128 | |
| 129 | // Update currFrame |
| 130 | m_currFrame += 1; |
| 131 | m_currFrame %= DEFAULT_BUFFER_SIZE; |
| 132 | } |
| 133 | |
| 134 | checkGate( out_sum / _frames ); |
| 135 | if( !isRunning() ) |
| 136 | { |
| 137 | clearMyBuffer(); |
| 138 | } |