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35 Cards in this Set
- Front
- Back
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Early Decay Time (EDT)
Time for sound energy to decay from 0 to -10 dB)x6 ~ 10% > reverb time |
“Liveness”
Sound that remains in a room after a source stops |
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Clarity Index (Ct)
Ratio of early to late energy |
“Clarity” & "Transparency"
Degree to which rapidly occurring, individual sounds are distinguishable |
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Definition (D) aka “Distinctness”
Ratio of early to total energy |
“Clarity”
Degree to which rapidly occurring, individual sounds are distinguishable |
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Initial Time Delay Gap (ITDG)
Time interval between the arrival of direct sound & 1st reflection at the listener |
“Intimacy”
Sensation that the music is being played in a small room |
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Lateral Energy Fraction (LF)
Ratio of energy at the listener that does not come directly ahead or behind the listener to that coming from all directions |
“Spaciousness”
Sensation of being immersed in the music Apparent Source Width (ASW) Perceived widening of the source beyond the visible limit |
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Interaural Cross-Correlation Coefficient (IACC)
Similarity of sound arriving at the 2 ears of the listener |
“Spaciousness”
Sensation of being immersed in the music "Apparent Source Width" (ASW) Perceived widening of the source beyond the visible limit "Envelopment" Impression that sound is arriving from all directions & surrounding the listener |
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Binaural Quality Index
=1 - IACC early, avg. over 3 OB |
N/A
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Surface Diffusivity Index (SDI)
Degree to which surfaces scatter sound in a diffuse vs. specular pattern |
“Envelopment” & Evenness of Sound Distribution
Impression that sound is arriving from all directions & surrounding the listener |
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Bass Ratio (BR)
Ratio of low frequency reverberation to mid frequency reverberation |
“Warmth”
Strength of base response (i.e. base clearly heard) “Clarity” Degree to which rapidly occurring, individual sounds are distinguishable “Envelopment” Impression that sound is arriving from all directions & surrounding the listener |
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Reverberation Time (T60)
Amount of time for energy to fall to 1 millionth of it's maximum amplitude |
“Reverberance”
“Clarity” Degree to which rapidly occurring, individual sounds are distinguishable “Envelopment” Impression that sound is arriving from all directions & surrounding the listener |
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Support Factor (ST1) "On Stage Support"
Ratio of energy returned from (20 - 100 msec) compared to the initial energy (0 - 10 msec) at the musician's location |
“Ensemble”
Musician's ability to hear themselves & to hear other musicians |
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Strength Factor (G) "Strength"
Difference in energy for a source measured in a room compared to same source measured in an anechoic chamber |
“Loudness”
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“Color”
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Complex combo of subjective & objective factors contributing to sonic quality
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Strength Factor (G) "Strength"
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“Loudness”
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Early Decay Time (EDT)
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“Liveness”
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Clarity Index (Ct)
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“Clarity”
"Transparency" |
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Definition (D) aka “Distinctness”
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“Clarity”
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Initial Time Delay Gap (ITDG)
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“Intimacy”
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Lateral Energy Fraction (LF)
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“Spaciousness”
Apparent Source Width (ASW) |
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Interaural Cross-Correlation Coefficient (IACC)
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“Spaciousness”
"Apparent Source Width" (ASW) "Envelopment" |
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Surface Diffusivity Index (SDI)
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“Envelopment”
Evenness of Sound Distribution |
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Bass Ratio (BR)
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“Warmth”
“Clarity” “Envelopment” |
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Reverberation Time (T60)
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“Reverberance”
“Clarity” “Envelopment” |
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Support Factor (ST1) "On Stage Support"
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“Ensemble”
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“Loudness”
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Strength Factor (G) "Strength"
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“Liveness”
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Early Decay Time (EDT)
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“Clarity”
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Clarity Index (Ct)
Bass Ratio (BR) Reverberation Time (T60) |
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"Transparency"
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Clarity Index (Ct)
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“Intimacy”
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Initial Time Delay Gap (ITDG)
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“Spaciousness”
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Lateral Energy Fraction (LF)
Interaural Cross-Correlation Coefficient (IACC) |
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Apparent Source Width (ASW)
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Lateral Energy Fraction (LF)
Interaural Cross-Correlation Coefficient (IACC) |
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"Envelopment"
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Interaural Cross-Correlation Coefficient (IACC)
Surface Diffusivity Index (SDI) Bass Ratio (BR) Reverberation Time (T60) |
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“Warmth”
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Bass Ratio (BR)
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“Reverberance”
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Reverberation Time (T60)
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“Ensemble”
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Support Factor (ST1)
"On Stage Support" |
