Power Adapter Failure
Voice Tracker I, II, and III units can lose power because of failed 6 V wall adapters. Long-term institutional users specifically report replacing power adapters more frequently than the microphones themselves.
Acoustic Magic
Repair, Service, and Parts
Acme Revival is an independent repair network that operates separately from the manufacturers whose devices we service. Our independence enables a repair model that exists beyond manufacturer-controlled strategies, while preserving the ability to work with manufacturers where appropriate.
Sudbury, Massachusetts, Middlesex County, USA
Manuf. Location
≈ US $0.84M
Annual Revenue (est)
Professional audio
End Use Segment
Acoustic Magic, Inc. is a small U.S. audio-technology manufacturer specializing in beamforming array microphones, particularly its Voice Tracker line. Founded in 2000, the company commercialized array-microphone technology originating from research at Brown University and introduced the Voice Tracker I in 2002. Its microphones use multiple microphone elements, onboard DSP, spatial filtering, and an electronically steered “listening beam” that automatically follows an active speaker across a room. Acoustic Magic's products are primarily used for lecture and meeting recording, video conferencing, speech recognition, distance learning, transcription, security monitoring, telemedicine, and related voice-capture applications. The company has sold tens of thousands of Voice Tracker units and is especially known for long-range, 360-degree room pickup without requiring multiple conventional microphones.
2 Most Seen Failures:
Loose Internal Connection
Voice Tracker microphones can develop loose internal electrical connections that cause intermittent or complete loss of operation. At least one long-term fleet user reported an internally loose connection requiring technician repair.
No Audio Output
Voice Tracker I, II, and III units may power and track a speaker normally yet produce no usable analog or USB audio. When external configuration and cabling are eliminated, the audio-output path, jack, or internal electronics are likely service points.
USB Connection Failure
Voice Tracker II units can intermittently fail to enumerate or be recognized by a computer through USB. Cable sensitivity is common, but persistent failure after known-good cables and direct connections can indicate deterioration of the USB connector or interface circuitry.
Intermittent or Failed Power Connection
A worn DC input jack or internal power connection can cause the Voice Tracker to remain dark, reset unexpectedly, or operate intermittently when its cable is disturbed. Absence of tracking LEDs with a verified-good adapter is a primary indication of a microphone-side power fault.
Firmware or Processor Lockup
Voice Tracker units may enter a fault state in which the indicator LEDs blink together and normal tracking or audio operation stops. Acoustic Magic instructs users to remove and restore power to reset the internal software.
Analog Output Noise
Voice Tracker II analog output can develop objectionable buzzing or electrical noise, particularly when powered from electrically noisy USB sources. If external power and ground-loop causes are eliminated, the analog output or internal power-filtering circuitry becomes suspect.
Microphone Array / Beam-Tracking Failure
A Voice Tracker may stop correctly locating a talker, show abnormal or absent tracking LEDs, or fail to steer its listening beam. Persistent behavior after a power reset can indicate failure within the microphone-element array, signal-processing electronics, or their internal connections.
3.5 mm Audio Jack / Output Connection Failure
Voice Tracker I and III depend heavily on their 3.5 mm analog microphone-level output, while Voice Tracker II also provides analog output. Wear, looseness, or damaged jack contacts can result in intermittent audio, one-position-only operation, crackling, or complete loss of output.
1 Acme Revival offers repair, service, and part rebuild opportunities for most Acoustic Magic devices.
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- 1 Repairs are performed on a best-effort basis. Acme Revival utilizes a network of sophisticated technicians and engineers with diverse service offerings; despite this, factors that influence the repair outcome may ultimately prove unsuccessful. Acme Revival makes no claim that it can, guarantee a repair before your device is sent in for diagnostic evaluation; even then, repair and diagnostic work are not mutually exclusive. Despite well-intentioned quoting, repairs may still prove unsuccessful.
- 2 Per information known, researched and collected by Acme Revival and its systems at time of page publishing (September 15, 2026).
- *Information regarding this manufacturer/brand/organization is estimated with information collected and known to Acme Revival. This information is intended to provide insights into the spotlight entity, however may not be accurate— information is strictly of estimate nature only.
- **The model list shown here may not be an all-inclusive list of the EcoFlow product range. Model list has been derived per information known, researched and collected by Acme Revival and its systems for the US market.
