Hi Stefan,<br><br>I'm sorry i didn't get your first requirement "Starts when there has been no sound for 0,8 seconds". Could you be a little more specific?<br><br>If you need to have a strong control over the echo i think you should probably use tables instead of delay lines, because you can write and read to an from a table at any moment and at any point in the table.<br>
<br>Pierre<br><br><div class="gmail_quote">2011/3/28 Stefan Magnusson <span dir="ltr"><<a href="mailto:stefan.magnusson@gmail.com">stefan.magnusson@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi!<div><br></div><div>Im currently working with a project developing tactile feedback for stimulation of disabled children.</div><div><br></div><div>Im getting quite far in using a rough surface, a contact microphone and buttshaker. My signal path is something like mic->bandpass->filering->amplitude control of an oscillator->lowpass->speaker</div>
<div><br></div><div>i wish to get the sound a bit more interesting, so i would like to add an echoeffect something like:</div><div>-Starts when there has been no sound (amplitude=0 after filtering) for 0,8 seconds.</div>
<div>
-Playbacks the last 1,6 seconds of sound (then there will be 0,8 seconds of noise and 0,8 seconds of silence) with 60% amplitude</div><div>-Repeat the echo with decreasing amplitude (i.e 45, 30 and 0%)</div><div><br></div>
<div>I believe i should use delay lines but i have a hard time controlling them the way i want.</div><div><br></div><div>Some help would be really appreciated by me and the children</div><div><br></div><font color="#888888"><div>
/Stefan</div>
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