Identify the instruments in a track from audio alone

Unveil's Instrumentation Analysis tool listens to an uploaded track and lists the instruments and sound sources it hears, with the role, level and stereo position of each. It also summarizes genre, mix balance and arrangement density. It needs a free Unveil account, and signed-out visitors are sent to sign-up.

How instrument identification works

Every instrument has a characteristic spectrum and envelope. A snare has a short noisy attack and a body around a few hundred hertz. A piano has a sharp attack and a decaying tone with specific overtones. A bowed string swells slowly. Identification models learn these patterns from large amounts of labelled audio and recognize them even when several sounds overlap.

Identifying instruments in a full mix is harder than in a solo recording because sounds mask each other. Low frequencies from kick and bass overlap, and synthesizers can imitate almost anything. A listener, human or machine, therefore describes what it hears rather than proving what was played.

What Unveil reports

Unveil sends the track to Google's Gemini model with instructions to be specific, for example listing kick, snare, hi-hats and crash cymbal as separate entries rather than simply drums. For synths it describes the sound design role, such as pad, arp or sub bass.

Category: drums, bass, keys, strings, vocals, synth, guitar, brass, fx or percussion.
Role in the arrangement: lead, rhythm, support, accent, texture or sub.
Relative level: perceived loudness on a 0 to 100 scale where 100 is the loudest element.
Stereo position: from -100 (hard left) to 100 (hard right), with 0 at the center.
A short note on the sound, placement or production technique.

Preparing audio for better results

Use a full-quality stereo file. Stereo information is part of the output, so a mono bounce will make every pan position read as center. Avoid very short clips; a section that includes several different parts of the arrangement gives the model more to identify than a few seconds of intro.

A finished mix works better than a rough one with heavy clipping. If you want to check how your own arrangement reads, upload the version you intend to release rather than a loudness-matched preview.

Using the tool

Create a free Unveil account or sign in. Signed-out visitors are sent to sign-up.
Open Instrumentation Analysis and drop in an audio file or click to browse. The tool charges 2 ProCoins for a run.
Wait while the file uploads and is scanned for instruments.
Read the genre, mix balance, stereo width and density cards, then the defining elements.
Browse the instrument list, sorted from loudest to quietest, and use the category buttons to filter it.
Read the production notes for suggestions you can apply in your session.

Using the results in a mix or arrangement

The list is useful as a checklist. Compare it with your session: if an instrument you thought was prominent has a low relative level, it may be buried. If two elements share the same category and a high level, they may be competing for the same space. Pan positions can show whether your mix is lopsided or whether every sound sits in the center.

Producers also use the output to study reference tracks. Upload a song you admire and note the density, the number of layers per category and which instruments define it, then compare it with your own arrangement.

Limits and common mistakes

Synths and samples are described by role and sound design, not by a verifiable source, so a processed guitar might be called a synth or the other way round.
Quiet or heavily masked parts, such as a soft pad under a loud lead, may not be listed.
Numbers for level and pan are estimates. Do not treat them as meter readings.
The result comes from an AI model and can vary if you run the same file twice.
Do not use the list as proof of what a recording contains, for example in credits or rights disputes. Confirm with session files or the performers.

What you get

A list of instruments with specific names such as kick drum, snare, hi-hats, Rhodes piano or sub bass synth.
For each instrument: category, role (lead, rhythm, support, accent, texture or sub), relative level from 0 to 100 and stereo position from left to right.
Overview cards for genre, mix balance, stereo width and arrangement density, plus the defining elements of the track.
Three to four production notes, such as frequency overlap between kick and bass, and a category filter for the instrument list.

Questions

How does Unveil identify instruments?

Your audio is analyzed by Google's Gemini AI model using a prompt written from an audio engineer's point of view. It returns structured data listing every audible instrument with its category, role, level and stereo position.

What does it cost?

According to the app's coin configuration, one analysis costs 2 ProCoins. You need a free Unveil account, and signed-out users are sent to sign-up.

Are the levels and pan positions measured?

No. They are the AI model's perceptual estimates on a 0 to 100 scale for level and -100 to 100 for stereo position, not values read from a meter. Check them against your own session or stems.

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