H04R29/008- Visual indication of individual signal levels.H04R29/001- Monitoring arrangements Testing arrangements for loudspeakers.H04R29/00- Monitoring arrangements Testing arrangements.H04R- LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS.238000006243 chemical reaction Methods 0.000 description 1.230000000007 visual effect Effects 0.000 claims description 9.238000001514 detection method Methods 0.000 title claims abstract description 23.230000005236 sound signal Effects 0.000 title claims abstract description 69.Assignors: D'AMORE, ANTHONY T., MEADE, STEVEN ANTHONY, RODRIGUEZ, JUAN Publication of US20130044886A1 publication Critical patent/US20130044886A1/en Application granted granted Critical Publication of US9313596B2 publication Critical patent/US9313596B2/en Status Active legal-status Critical Current Adjusted expiration legal-status Critical Links reassignment D'AMORE ENGINEERING LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US201161525193P priority Critical Application filed by STEVE MEADE DESIGNS Inc, DAmore Engineering LLC filed Critical STEVE MEADE DESIGNS Inc Priority to US13/571,571 priority patent/US9313596B2/en Assigned to D'AMORE ENGINEERING LLC, STEVE MEADE DESIGNS INC. Original Assignee STEVE MEADE DESIGNS Inc DAmore Engineering LLC Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) D'Amore Juan Rodriguez Steven Anthony Meade Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US13/571,571 Other versions US9313596B2 Google Patents US20130044886A1 - Audio Signal Distortion Detection Device Low Battery LED trigger battery voltage Less Than 5.US20130044886A1 - Audio Signal Distortion Detection Device Signal Present LED trigger voltage 750mVrms Guaranteed operating range of input signal is 1.2Vrms - 125Vrms. The Distortion Detector's circuitry is 100% analogÄistortion Detection trigger level More than 1.0% Harmonic Distortion
Should the harness become damaged it is easily replaceable or repairable in the field. It makes it pretty easy to measure the output of a head unit directly if you choose to do so. Isolating the DD1-1 from the vehicle's electrical system for power, guarantees that it will only measure what it is supposed to measure the audio signal, not noise in the charging system.
It can also be useful for detecting distortion in the audio signal caused by poorly designed or malfunctioning audio equipment.
The purpose of this tool is to enable the installer to set the gain of an audio amplifier to match the source unit's output level, accurately and quickly. Steve Meade Designs SMD DD-1 Amplifier Audio Distortion Detector