I dont want to argue but like i said EACH room is different...
And what is important save the optimal ratio between reflection and absorbtion and diffusion related to EACH specific room is the TIMING THRESHOLDS Optimization...
Then i use contrary to general rule some reflection at early reflection points this is NOT AN ADVICE i give to all.... This is MY SITUATION in my room....
General rule in audio thread are only that general rule, i prefer my listening experiments and optimization for my room and for my ears and scientific research to help me....😁
Read that to have some idea of what i speak about:
«An essential point is that an auditory temporal window
does not have a rectangular shape, but it has a slope at each
end. Therefore, the conventional rectangular division of
reflections into an early and late part in time is overly simplistic. As suggested by the definitions of ASW and LEV
mentioned before, the perception of them relates strongly
to the law of the first wavefront [17]. Namely, as Bradley
and Soulodre describe in their paper [4], sound arriving
shortly after the direct sound is integrated or temporally
and spatially fused with the direct sound. Thus, increasing
levels of early lateral reflections increase the apparent level
of the direct sound and cause a slight ambiguity in its perceived location. These two effects contribute to the resulting increase in ASW. Later arriving sound is not
integrated or temporally and spatially fused with the direct
sound, and leads to more spatially distributed effects that
appear to envelop the listener. This description well
explains the relation between the perception of spatial
impression and the law. However, it is insufficient for a
deep understanding of the relation, because it is qualitative
but not quantitative.
Here, to facilitate understanding of the relation, let us
suppose a simple sound field consisted of a direct sound
and a single lateral reflection of constant level. According
to the law, when the delay time of the reflection does not
exceed a critical value, which depends on the kind of source
signal, only one sound image is perceived in the direction of
the direct sound. Then, ASW is perceived, but LEV is not
as explained above. That is, the reflection contributes only
to ASW. On the other hand, when the delay time exceeds
the critical value, two sound images are perceived separately in the directions of the direct sound and the reflection [18]. This phenomenon is called ‘‘image-splitting.’’
Then, LEV is perceived as explained above. Furthermore,
only LEV is perceived, based on the conventional physical
measures which divide reflections into an early and late
part. However, some questions arise from this case. Should
not ASW also be perceived simultaneously? If ASW is also
perceived, how much does the reflection contribute to create each of ASW and LEV? »
https://www.researchgate.net/publication/223804282_The_relation_between_spatial_impression_and_the_law_of_the_first_wavefront
And what is important save the optimal ratio between reflection and absorbtion and diffusion related to EACH specific room is the TIMING THRESHOLDS Optimization...
Then i use contrary to general rule some reflection at early reflection points this is NOT AN ADVICE i give to all.... This is MY SITUATION in my room....
General rule in audio thread are only that general rule, i prefer my listening experiments and optimization for my room and for my ears and scientific research to help me....😁
Read that to have some idea of what i speak about:
«An essential point is that an auditory temporal window
does not have a rectangular shape, but it has a slope at each
end. Therefore, the conventional rectangular division of
reflections into an early and late part in time is overly simplistic. As suggested by the definitions of ASW and LEV
mentioned before, the perception of them relates strongly
to the law of the first wavefront [17]. Namely, as Bradley
and Soulodre describe in their paper [4], sound arriving
shortly after the direct sound is integrated or temporally
and spatially fused with the direct sound. Thus, increasing
levels of early lateral reflections increase the apparent level
of the direct sound and cause a slight ambiguity in its perceived location. These two effects contribute to the resulting increase in ASW. Later arriving sound is not
integrated or temporally and spatially fused with the direct
sound, and leads to more spatially distributed effects that
appear to envelop the listener. This description well
explains the relation between the perception of spatial
impression and the law. However, it is insufficient for a
deep understanding of the relation, because it is qualitative
but not quantitative.
Here, to facilitate understanding of the relation, let us
suppose a simple sound field consisted of a direct sound
and a single lateral reflection of constant level. According
to the law, when the delay time of the reflection does not
exceed a critical value, which depends on the kind of source
signal, only one sound image is perceived in the direction of
the direct sound. Then, ASW is perceived, but LEV is not
as explained above. That is, the reflection contributes only
to ASW. On the other hand, when the delay time exceeds
the critical value, two sound images are perceived separately in the directions of the direct sound and the reflection [18]. This phenomenon is called ‘‘image-splitting.’’
Then, LEV is perceived as explained above. Furthermore,
only LEV is perceived, based on the conventional physical
measures which divide reflections into an early and late
part. However, some questions arise from this case. Should
not ASW also be perceived simultaneously? If ASW is also
perceived, how much does the reflection contribute to create each of ASW and LEV? »
https://www.researchgate.net/publication/223804282_The_relation_between_spatial_impression_and_the_law_of_the_first_wavefront