What is SynthID?
SynthID is Google DeepMind's watermarking tool for AI-generated content: it embeds a digital mark into images, audio, text or video that people cannot see or hear, but that SynthID's technology can detect. For an advertiser it means an AI-made song carries a built-in, checkable signal that it came from an AI model.
Updated
How it works on audio
According to Google DeepMind's SynthID page, SynthID embeds a watermark into audio generated through its AI music model Lyria. Google describes the mark as inaudible to the human ear and says it cannot be altered by common modifications such as adding noise, MP3 compression or changing the speed of the track. Google also runs SynthID Detector, a verification portal where anyone can check whether an image, video or audio file was made with AI from Google or its partners.
What it means for your ads
The music in SingingAds is made with Google's Lyria model, so every song carries the SynthID watermark. In practice:
- It does not limit how you use the song. On SingingAds you may use it in ads, on social media, websites, radio and podcasts with no royalties.
- It does not replace a platform label. TikTok, Meta and YouTube ask you to label realistic AI-generated content. Our cinematic, UGC and studio looks are realistic AI footage, so turn the AI label on when you post them; for the animated looks we recommend it too.
- It is a transparency feature, not a quality score, a copyright registration or a tracking pixel.
An illustrative example
Illustrative example: a made-up tea shop, Kettle and Crane, runs a 30-second anime ad with an AI jingle. A customer asks in the comments whether the song is AI. The owner says yes, points to the AI label on the post, and adds that the track carries Google's SynthID watermark, so anyone can check it. Openness turns a possible gotcha into a non-issue.
Common mistakes
- Trying to strip the mark by re-encoding or speeding up the track. Google says common edits do not remove it, and hiding AI origin works against the labels platforms ask for.
- Assuming the watermark labels the ad for you. Turn on the platform's AI label yourself.
- Reading the watermark as a ban on commercial use. Usage rights come from the tool's terms, not the watermark.
- Telling customers a person wrote and sang an AI-made song, in captions or in replies.
Related terms
Read the rules in AI label rules for ads and our own AI disclosure. SynthID sits inside every jingle SingingAds sings; see the AI song ad generator for how those songs are made.
What it can't do
- SynthID identifies content made with Google's AI models and partners; it does not detect every AI tool.
- A watermark is not legal advice about labeling; check each platform's current rules.
What it costs
From $15 for one ad, or $59 for about 6 thirty-second video ads. Credits never expire. A jingle take costs 4 credits; a typical 30-second video ad about 26. There is no free tier and no free sample.
One-time packs
One ad
$15 once
Five ads
$59 once
Questions
- Can people hear the SynthID watermark?
No. Google describes the audio watermark as inaudible to the human ear.
- Does SynthID stop me using an AI song in a commercial?
No. The watermark only marks the audio as AI-generated. What you may do with the song is set by the terms of the tool that made it.
- How can I check whether a song has a SynthID watermark?
Google offers SynthID Detector, a verification portal where you can upload an image, video or audio file to check for the mark.
- Will cutting the song to 15 seconds remove the watermark?
Google says the audio mark is designed to survive common modifications such as compression, added noise and speed changes. Trimming is a normal edit and you should assume the mark remains.
- Do I still need to label my ad as AI?
Platforms ask you to label realistic AI-generated content. SingingAds' cinematic, UGC and studio looks are realistic AI footage, so turn the label on; for 3D, anime or clay we recommend it too.
Sources
- Google DeepMind, SynthID, read 17 Oct 2026