The cleaned speech stayed clear and understandable, but the voice sounded more processed, slightly robotic, and louder than the original, reducing naturalness.

⚠ Struggledinput + output shownTest date not recordedAuphonic
What was measured
Voice preservation

After cleanup, does the voice still sound natural, or hollow, robotic, underwater, or artifacted?

decisive for this rankingtransformation

Noise cleanup is only useful if the speech still sounds natural and intelligible after processing. (3 of 3 judges)

What was given, what came back

Test input: Indoor AC + Fan Background Noise · audio · group: background-noise-removal
Input — what we sent
0:00 / 0:00
Loading audio...
Indoor AC + Fan Background Noise

A real-world indoor speech recording with continuous background noise from both an air conditioner and a fan. It is designed to test whether tools can suppress overlapping mechanical noise while preserving speech naturalness.

Why this input is hard
  • · Removal of multiple overlapping indoor mechanical noises
  • · Speech enhancement and isolation
  • · Voice quality preservation under steady noise
  • · Minimal-artifact background noise suppression
Provenance
Observation
56042900-fa97-46a8-a5fe-26caf17045e5
Evidence run
189e3005-33f2-4481-924e-334542fcda87
Study
Remove Background Noise from Audio and Video Recordings Using AI
Research task
86ba6cyhe
Tested at
not recorded
Source
first-party
Evidence state
observed
Proof shown
input + output shown
Cost / latency
not captured
Repeat run
not captured
Tester
not captured

The last three rows are honest blanks, not placeholders — our capture has no field for them yet.

Query this
get_evidence({
  tool: "auphonic",
  scenario: "background-noise-removal"
})
MCP · mcp.aidemos.com/api/mcp
Free with attribution.
Same input, same check — 5 other tools
measured on Voice preservation
Real inputs and real outputs, no retouching · every cell queryable via API & MCP · aidemos.com