Audio Based String Instrument Evaluation

Bring A String

Rate sound quality, cluster into tiers, and keep the analysis honest with standardized inputs. Designed for shops and players who want a fair, repeatable audio assessment.

Analyze clips View standard test
Provide six 10-30s clips Recorded directly from the site
Receive scores in 3 categories Tone, projection, confounds
Compare your results Tiered output from entry to professional
Example Output
78
Total score
Tone
82
Projection
76
Confounds
71
Instrument
Violin
Estimated tier
High intermediate / advanced
Value band (sound-only)
$3,500 - $7,000
Confidence 0.62
Top factors
  • Strong harmonic richness
  • Moderate bow noise on attacks
  • Stable pitch envelope on open strings
Recommendations
  • Re-record open strings + G major scale

Record + Analyze

Record each standardized clip in the browser or upload existing files. Results stay transparent with clear confidence and caveats.

Calibration is tracked per instrument family for better accuracy.

Record clips right here

Allow mic access and record each step. Every clip is added to your list instantly.

Mic off

Before recording, check your mic level below and move the mic farther back if needed.

Input level
Enable mic to see levels.

Helps tame sudden spikes, but cannot fix already clipped audio.

Room tone (10s)

Silence, no movement. Capture the room noise floor.

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Waiting
Open strings

G, D, A, E. Two bows each: slow (4s) + fast (2s). Pause between strings.

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Waiting
Sustained notes

A4, D4, E5. Hold 3s each, repeat twice. Steady bow.

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Waiting
2-octave scales

G major then D major. 4/4 time, quarter note = 60 bpm (slow) and 90 bpm (medium). Clear pauses between runs.

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Waiting
Articulation test

On A string: 8 detache, 8 martele, 8 spiccato. Even spacing, comfortable tempo.

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Waiting
Short excerpt (30-45s)

Choose a fixed excerpt. Include legato and spiccato, keep tempo steady.

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Waiting

Recorded clips stay on this device until you analyze them.

Want to help us improve the analysis model? If so, please provide the following info.

All fields are optional and help improve future model accuracy.

Recorded clips will appear here.

Results

Waiting
Model status: checking...
--
Total score
Tone
--
Projection
--
Confounds
--
Instrument
Violin
Estimated tier
--
Value band (sound-only)
--
Confidence --
Top factors
  • Upload clips to see analysis factors.
Recommendations
  • Add open strings and sustained notes for stability.

This estimate is based on audio only and is influenced by player, room, mic, and setup. Provenance cannot be inferred from sound alone.

Score vs. Price Map

Compare where instruments land in score and price. Filter by instrument family and see your latest analysis highlighted.

Community Your instrument
Score vs. price scatter plot Scores on the vertical axis and price (log scale) on the horizontal axis.

Example data is shown until more analyses are collected.

Resources

Guides and listening tests to help you compare instruments by sound alone.

Resources

Want an objective comparison? Record the standard test and review your results against the tier bands.