HK26147 said:To my ears things like cymbal crashes and breaking glass are hard for tweeters to replicate and can be very revealing of HF quality.
I agree, and good behaviour from the cone/dome + linear motor is essential to pull off such sounds.
/Peter
the dynaudio report indicates 6khz for 1/2ms, right? What is the average length of a high frequency transient? What is the frequency range they occur in? What area, for the tweeter, will this most matter? I'm not sure that, until I have some answers to those questions, the Dynaudio test is very conclusive.
This makes me want to extract some movie soundtracks as well as music files and look at them on spectralab, making watefall plots. I haven't looked to see if that software can calculate things like length of a transient peak very easily. Other software I use in my own field could easily do so if the numbers could be exported into something like a text document with x,y,z. I could even calculate the percentage of the total performance they take up, the amount of energy in a given range, etc. These would probably be better, though not conclusive, ways to look at it.
This makes me want to extract some movie soundtracks as well as music files and look at them on spectralab, making watefall plots. I haven't looked to see if that software can calculate things like length of a transient peak very easily. Other software I use in my own field could easily do so if the numbers could be exported into something like a text document with x,y,z. I could even calculate the percentage of the total performance they take up, the amount of energy in a given range, etc. These would probably be better, though not conclusive, ways to look at it.
Matt
Take a signal portion into Cool Edit as a wave file and HP filter it. Then you can just scan for impulsive data and tell from that what a likely time interval is. You can bandpass the data too if you want to see the data for a particular bandwidth.
Take a signal portion into Cool Edit as a wave file and HP filter it. Then you can just scan for impulsive data and tell from that what a likely time interval is. You can bandpass the data too if you want to see the data for a particular bandwidth.
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