Your phone may soon let you know when the song you’re listening to was made by AI

Source: Android Authority

Adam Birney / Android Authority

TL;DR

• SynthID watermarking lets Google recognize AI‑generated music.
• You can currently upload recordings to Gemini for SynthID analysis.
• Upcoming changes to song search in the Google app may enable on‑device SynthID detection for music.

AI‑generated music and the need for detection

Generative AI now lets anyone create songs, such as Google’s Lyria 3‑based song‑creation tool for Gemini. As AI‑generated tracks become more common, listeners worry about distinguishing human‑made compositions from AI‑created ones. Google addresses this by embedding SynthID watermarks in AI‑generated audio, allowing the tracks to be identified even when they sound indistinguishable from human‑made music.

How SynthID works today

At present, Gemini can scan images, video, and audio files for SynthID watermarks, but the process requires you to upload the file to Gemini:

1. Record the audio.
2. Upload the file to Gemini for analysis.

While functional, this workflow is cumbersome for casual users who just want to know whether a song they’re hearing was AI‑generated.

Possible on‑device detection in the Google app

A recent look at the version 17.9.50.sa.arm64 update of the Google app for Android revealed strings that hint at a new feature:

All or part of this audio was generated or edited with Google AI
AI generated content

These strings are tied to the song search tool within the Google app—the same workflow used by features like Now Playing, Circle, and Search.

How it might work

• On‑device acoustic fingerprinting: The app already stores a local database of acoustic signatures for popular songs, enabling offline identification.
• Potential SynthID integration: If Google can match a track’s fingerprint locally and also check for a SynthID watermark, the app could instantly flag AI‑generated content without needing to upload anything.

Open questions

• Will the detection work only for songs that Google has already flagged as AI‑generated, or will it be a general‑purpose SynthID scanner?
• Could the feature operate in real time as the music plays?
• How will the system handle newly released or user‑generated AI tracks that aren’t yet in Google’s database?

Outlook

If Google succeeds in bringing on‑device SynthID detection to the song search workflow, it would provide a seamless way for listeners to know the origin of the music they hear. We’ll continue monitoring updates for more concrete details on implementation.

⚠️ An APK teardown can reveal work‑in‑progress features, but there’s no guarantee that predicted capabilities will reach a public release.