Sound Drop Outs at High Volume: Difference between revisions

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=== Non-Standard B1 Cables ===
=== Non-Standard B1 Cables ===
From Bill-at-Bose<ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/3976055944/m/7301030982?r=9831057754#9831057754 Bill-at-Bose talks about volume drpouts]</ref>
From Bill-at-Bose<ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/3976055944/m/7301030982?r=9831057754#9831057754 Bill-at-Bose talks about volume dropouts]</ref>
Hilmar and I looked into it further to find the root cause, and found the rather subtle issue that, depending on the wire gauges and how the wires were paired in the cable, loud bass signals (in the speaker pair of wires) in extra long cables could capacitively couple into the sensing pair of wires. When it happened, the {{L1}} "thought" you were changing your {{B1}} configuration and would mute.
 
Hilmar<ref>Hilmar-at-Bose</ref> and I looked into ''sound dropouts'' further to find the root cause, and found the rather subtle issue that, depending on the wire gauges and how the wires were paired in the cable, loud bass signals (in the speaker pair of wires) in extra long cables could capacitively couple into the sensing pair of wires. When it happened, the {{L1}} "thought" you were changing your {{B1}} configuration and would mute.


So we looked at capacitance per foot with different wire guages, and with twisted vs untwisted pairs in the same cable, and looked at our sensing algorithm, and did two things to solve the problem:
So we looked at capacitance per foot with different wire guages, and with twisted vs untwisted pairs in the same cable, and looked at our sensing algorithm, and did two things to solve the problem: