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<blockquote data-quote="Frank Koenig" data-source="post: 125093" data-attributes="member: 416">Re: My Current SH46 SettingsYes. You can&nbsp; make the filter shorter and this filter may be longer than it needs to&nbsp; be. On the other hand, 4ms is acceptable to me for house speakers. Most&nbsp; of the length is devoted to fixing a bump in the excess group delay that&nbsp; may be if no perceptual importance (it just makes square waves look&nbsp; better on an oscilloscope).Not&nbsp; sure what you mean by this. The SUBJECTIVE difference so far is that it&nbsp; sounds a lot brighter, as one might expect given that there&#039;s a good&nbsp; bit of HF boost. Whether this is good or ice-pick remains to be&nbsp; determined <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile&nbsp; &nbsp; :)"&nbsp; data-smilie="1"data-shortname=":)" />~<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":-)" title="Smile&nbsp; &nbsp; :-)"&nbsp; data-smilie="1"data-shortname=":-)" />~:smile:.&nbsp; So far I&#039;ve only listened to playback, although some was outdoors and&nbsp; loud on the 4th. I&#039;ll have a real live band playing through it beginning&nbsp; of next month.&nbsp;I&#039;m&nbsp; looking at the the time-frequency-energy plots largely to learn about&nbsp; what those representations show in general. I don&#039;t know them well&nbsp; enough to really use them as an analytic tool. One observation is that&nbsp; when I average TFE plots of many measurements taken at different angles,&nbsp; many of the small echos that look bad on individual measurements go&nbsp; away. So, bad or not, there is nothing you can do about them by signal&nbsp; processing alone.&nbsp; The projection of the ridge of the TFE plot onto the&nbsp; t-f plane does appear to approximate the excess group delay, which&nbsp; matches my intuition, which is nice, since so much of this stuff is not&nbsp; very intuitive, to me at least.--Frank</blockquote>

[QUOTE="Frank Koenig, post: 125093, member: 416"] Re: My Current SH46 Settings Yes. You can make the filter shorter and this filter may be longer than it needs to be. On the other hand, 4ms is acceptable to me for house speakers. Most of the length is devoted to fixing a bump in the excess group delay that may be if no perceptual importance (it just makes square waves look better on an oscilloscope). Not sure what you mean by this. The SUBJECTIVE difference so far is that it sounds a lot brighter, as one might expect given that there's a good bit of HF boost. Whether this is good or ice-pick remains to be determined :)~:-)~:smile:. So far I've only listened to playback, although some was outdoors and loud on the 4th. I'll have a real live band playing through it beginning of next month. I'm looking at the the time-frequency-energy plots largely to learn about what those representations show in general. I don't know them well enough to really use them as an analytic tool. One observation is that when I average TFE plots of many measurements taken at different angles, many of the small echos that look bad on individual measurements go away. So, bad or not, there is nothing you can do about them by signal processing alone. The projection of the ridge of the TFE plot onto the t-f plane does appear to approximate the excess group delay, which matches my intuition, which is nice, since so much of this stuff is not very intuitive, to me at least. --Frank [/QUOTE]

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