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1 | (1) |
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1.1 Mechanisms of Localization |
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2 | (10) |
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1.1.1 HRTF Phase-Characteristics |
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9 | (2) |
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1.1.2 Localization and HRTFs |
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11 | (1) |
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1.2 Mechanisms of Distance Perception |
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12 | (3) |
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13 | (1) |
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14 | (1) |
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14 | (1) |
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1.2.4 Binaural Differences |
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14 | (1) |
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15 | (3) |
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1.4 Physical Measures in Relation to Spatial Impression |
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18 | (4) |
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1.5 The Influence of Loudspeaker Quality and Listening Room Acoustics on Listener Preference |
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22 | (2) |
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1.6 Psychoacoustic Effects Concerning Localization and Spatial Impression with Loudspeaker Reproduction |
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24 | (7) |
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1.6.1 Frequency-Dependent Localization Distortion in the Horizontal Plane |
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26 | (1) |
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1.6.2 Frequency-Dependent Localization in the Vertical Plane |
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27 | (1) |
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1.6.3 Effects Concerning the Reproduction of Spaciousness |
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27 | (4) |
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31 | (4) |
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2 Correlation and Coherence |
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35 | (22) |
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2.1 Signal Correlation in Stereo Microphone Systems |
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38 | (8) |
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2.2 Optimized Signal Coherence in Surround Microphone Systems |
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46 | (2) |
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2.3 Optimized Interaural Correlation Coefficient |
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48 | (1) |
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2.4 Evaluations Concerning the Interaction Between Loudspeaker Directivity and Listener Envelopment |
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48 | (3) |
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2.5 Summary and Conclusion |
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51 | (1) |
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52 | (2) |
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54 | (3) |
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3 Stereo Microphone Techniques |
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57 | (40) |
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3.1 Coincident Techniques |
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57 | (10) |
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3.1.1 XY with Cardioids and Hyper-cardioids |
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58 | (1) |
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3.1.2 XY with Figure-of-Eights (Blumlein-Pair) |
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59 | (1) |
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60 | (1) |
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3.1.4 Coincident Omni-directional Microphones? |
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60 | (1) |
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3.1.5 BPT Microphone (`Blumlein-Pfanzagl-Triple,' BPT-3.0) |
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61 | (6) |
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3.2 AB Pair Systems (At-Stereophony) |
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67 | (7) |
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3.2.1 Small AB--Only a `Psychoacoustic Trick'? |
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68 | (2) |
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3.2.2 Faulkner `Phased Array' |
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70 | (1) |
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3.2.3 Faulkner `4-Way Phased Array' |
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71 | (1) |
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3.2.4 Jecklin Disk--or Blumlein Disk? (and Schneider Disk) |
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71 | (3) |
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3.3 Equivalence Stereophony |
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74 | (14) |
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75 | (1) |
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75 | (1) |
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75 | (3) |
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3.3.4 Large AB--and the `Hole-in-the-Middle' Effect |
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78 | (4) |
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3.3.5 Small AB Versus Large AB: Introducing `medium AB' and the `AB-Centerfill' Technique |
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82 | (3) |
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3.3.6 OCT--Optimal Cardioid Triangle |
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85 | (1) |
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3.3.7 DHAB--Delayed Hemicardioid AB |
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85 | (1) |
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3.3.8 SHAB--Side Hemicardioid AB |
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86 | (1) |
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3.3.9 CHAB--Center Hemicardioid AB |
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87 | (1) |
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3.4 Combined Stereo Microphone Techniques |
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88 | (5) |
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3.4.1 The `AB-Polycardioid Centerfill' (AB-PC) |
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88 | (2) |
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3.4.2 `AB-Blumlein Centerfill' and Other Techniques |
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90 | (3) |
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93 | (4) |
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4 Surround Microphone Techniques |
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97 | (74) |
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4.1 Coincident and `Quasi-coincident' Microphone Arrays |
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97 | (20) |
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4.1.1 `Soundfield-' or `Soundpoint-' Microphone? |
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97 | (6) |
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4.1.2 DMS (Double-MS Technique) |
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103 | (1) |
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4.1.3 Double-MS + Artificial Head |
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103 | (1) |
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4.1.4 BPT (Blumlein-Pfanzagl-Triple) |
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104 | (7) |
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111 | (1) |
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4.1.6 XY Cardioid Arrangement (Back-to-Back) |
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112 | (1) |
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4.1.7 MILAB 360 (360° Surround Microphone) |
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113 | (1) |
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4.1.8 Phasor Arrays and the `Ghent' Microphone |
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113 | (4) |
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4.2 Spaced Arrays (Two-Dimensional Arrays) |
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117 | (25) |
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4.2.1 Circular Microphone Array |
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117 | (1) |
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118 | (1) |
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4.2.3 ABC 5 (Omni Array, Decca-Triangle) |
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119 | (1) |
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4.2.4 INA 5 (Ideal Cardioid Arrangement) |
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120 | (1) |
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4.2.5 OCT Surround (Optimal Cardioid Triangle-Surround) |
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121 | (1) |
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122 | (1) |
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123 | (1) |
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124 | (1) |
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4.2.9 Atmo-Cross (IRT Cross) |
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124 | (2) |
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126 | (1) |
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4.2.11 Multiple AB (`Microphone Curtain') |
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126 | (3) |
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4.2.12 AB-PC (AB-Polycardioid Centerfill) |
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129 | (2) |
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4.2.13 CHAB 5.0--Center Hemicardioid AB for Surround |
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131 | (1) |
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132 | (1) |
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4.2.15 Corey and Martin Tree |
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132 | (1) |
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132 | (1) |
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133 | (1) |
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4.2.18 Polyhymnia Pentagon |
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134 | (1) |
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4.2.19 Ron Streicher's Surround Sound Decca-Tree |
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134 | (2) |
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4.2.20 XY Tri (by Andrew Levine) |
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136 | (6) |
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4.3 Baffle and 3D Techniques |
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142 | (13) |
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4.3.1 KFM 360 (`Kugelflachenmikrofon') |
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142 | (2) |
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4.3.2 Various Baffled Surround Microphone Systems |
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144 | (1) |
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4.3.3 Holophone `H2-Pro' and `PortaMic 5.1' |
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145 | (1) |
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4.3.4 DP A--`D: Mension 5100' Mobile Surround Microphone |
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145 | (2) |
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4.3.5 Sony Sphere-Arrangement |
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147 | (1) |
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4.3.6 Multichannel Microphone Array (Johnston-Lam) |
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147 | (1) |
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4.3.7 HOA--Higher-Order Ambisonics: The `Eigenmike®', Octomic and ZM-1 |
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148 | (2) |
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4.3.8 OSIS-System (Optimal Sound Image Space--'Jecklin Surround') |
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150 | (2) |
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4.3.9 Pan-Ambiophonic 2D/3D System |
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152 | (2) |
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4.3.10 BACCH(TM) 3D Sound |
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154 | (1) |
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4.4 `3D' or `Immersive Audio' |
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155 | (8) |
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158 | (1) |
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159 | (1) |
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4.4.3 3D Audio: Psychoacoustic Considerations and Comparative Tests |
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159 | (4) |
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4.5 General Thoughts on Microphone Arrays |
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163 | (1) |
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164 | (2) |
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166 | (5) |
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5 Artificial Head Recordings |
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171 | (12) |
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5.1 Use of an Artificial Head as a `Human Reference' |
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171 | (2) |
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5.2 Studies Concerning the Quality of Artificial Heads |
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173 | (7) |
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5.3 Summary and Conclusion Concerning the Studies of Artificial Heads |
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180 | (1) |
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180 | (3) |
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6 Some Thoughts on Subjective Listening Tests |
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183 | (28) |
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6.1 Basic Considerations Concerning Listening Tests |
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183 | (1) |
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6.2 Requirements for the Reproduction System; Consideration of Qualitative Parameters |
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184 | (2) |
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6.3 Further Factors Influencing Listener Perception |
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186 | (1) |
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6.4 Selection of Appropriate Sound Attributes |
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187 | (5) |
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6.5 A Few Thoughts on `Calibrating' Test Listeners and ANOVA |
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192 | (1) |
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6.6 Recording of Program Material for 5.1 Surround at the Salzburg Festival Hall |
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192 | (4) |
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6.6.1 Program Material and Venue Acoustics for the Orchestral Recording Listening Test |
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196 | (1) |
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6.6.2 Program Material and Venue Acoustics for the Duo Recording Listening Test |
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196 | (1) |
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6.7 Subjective Listening Test with 5.1 Surround Loudspeaker Reproduction |
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196 | (4) |
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6.7.1 Listening Test ORCHestral Recording in 5.1 Surround |
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199 | (1) |
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6.7.2 Listening Test DUO Recording in 5.1 Surround |
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199 | (1) |
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6.7.3 Duration of the Orchestral and DUO Listening Tests and Listening Room Acoustics |
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199 | (1) |
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6.8 Subjective Listening Test (Binaural) with Headphone Reproduction |
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200 | (2) |
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6.8.1 Choice of Headphones for the Binaural Listening Test |
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201 | (1) |
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6.9 Analysis of the Listening Tests |
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202 | (5) |
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6.9.1 Statistical Analysis of the Orchestral Recording `5.1 Surround' Listening Test |
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202 | (1) |
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6.9.2 Statistical Analysis of the Orchestral Recording `binaural' Listening Test |
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203 | (2) |
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6.9.3 Comparison of the Analysis Results `ORCH 5.1' and `ORCH Binaural' |
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205 | (1) |
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6.9.4 Statistical Analysis of the DUO Recording `5.1 Surround' Listening Test |
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206 | (1) |
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6.10 Correlation Analysis of the Listening Test Data |
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207 | (1) |
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208 | (3) |
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7 Analysis of Frequency-Dependent Signal Correlation and Coherence in Surround Microphone Systems |
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211 | (34) |
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7.1 Measurement of the Frequency-Dependent Cross-Correlation (FCC) and Frequency-Dependent Inter-aural Cross-Correlation (FIACC) |
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212 | (5) |
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7.2 Measurement of the Frequency-Dependent Signal Coherence |
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217 | (5) |
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7.3 Pair-wise Analysis of Correlation and Coherence with Surround Microphone Signals |
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222 | (17) |
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239 | (4) |
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7.4.1 Thoughts on Diffuse-Field Correlation (DFC) |
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240 | (3) |
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243 | (2) |
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8 Analysis of Frequency-Dependent Signal Cross-correlation (FCC) in Stereo Microphone Systems |
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245 | (20) |
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8.1 Calculation of the `Critical Frequency' in Small AB Microphone Systems |
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247 | (1) |
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8.2 Calculation of the `Out-of-Phase Maximum Frequency' |
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248 | (2) |
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8.3 Comparison of the FCC and FIACC of Various Stereophonic Microphone Techniques |
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250 | (9) |
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8.4 Conclusions, Further Analysis and Literature |
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259 | (3) |
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262 | (3) |
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9 Discussion and Conclusion: An Attempt at a Qualitative Ranking of Stereo and Surround Microphone Techniques--An Examination of Various Studies in the Field |
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265 | (64) |
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9.1 Stereo Microphone Techniques |
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266 | (23) |
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9.1.1 Coincident XY with Cardioids and Hyper-cardioids |
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269 | (1) |
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9.1.2 Coincident XY with Figure-of-Eights (Blumlein-Pair) |
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270 | (2) |
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9.1.3 Small Versus Large AB--Revisited |
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272 | (4) |
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9.1.4 Microphone Technique, Reverberation Radius and Frequency-Dependent Radiation Patterns of Musical Instruments |
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276 | (7) |
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9.1.5 Ranking of a Few of the Most Common Stereo Main Microphone Techniques |
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283 | (6) |
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9.2 Surround Microphone Techniques |
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289 | (37) |
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9.2.1 Comparative Surround Microphone Tests |
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301 | (23) |
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9.2.2 A Final Ranking for Several Common 5.1 Surround Microphone Techniques |
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324 | (2) |
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326 | (3) |
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10 Binaural Quality Index of Reproduced Music (BQIrep) |
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329 | (8) |
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334 | (1) |
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335 | (2) |
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11 A Short History of Microphone Techniques and a Few Case Studies |
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337 | (54) |
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11.1 The Early Beginnings of `Stereophonic Sound' |
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337 | (7) |
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344 | (11) |
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11.3 RCA `Living Stereo' Recordings |
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355 | (14) |
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11.4 MERCURY' Living Presence' |
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369 | (1) |
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11.5 A Few Case Studies of Live and Studio Recordings with Orchestra (and Solo-Instruments) |
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370 | (5) |
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11.6 Solo-Piano Microphone Techniques |
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375 | (4) |
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11.7 Studio Ensemble Recordings with Acoustic Instruments |
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379 | (7) |
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11.8 Work Practice Recommendations |
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386 | (2) |
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388 | (3) |
Appendix A |
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391 | (4) |
Appendix B Reference-Email No. 1 Concerning OCT-Surround (by Cornelius van der Gragt) |
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395 | (2) |
Appendix C The MAAT "2BC multiCORR" Cross-Correlation Meter Plug-In |
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397 | (10) |
Index |
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407 | |