All Audio Fundamentals guides
Learn the audio concepts behind everyday editing decisions: frequency and musical pitch, EQ ranges, BPM and note timing, reference tones, and how pink noise differs from white or brown noise. These guides pair concise explanations with interactive browser tools, so you can hear or calculate the idea instead of memorizing a chart. Start with the frequency chart for EQ work, the note chart or pitch detector for tuning, and the BPM tools for delay and reverb timing.
Speaker Polarity Test: Check If Speakers Are Out of Phase
Compare how two speakers combine at your seat, understand detector signal requirements, and follow the manufacturer’s procedure for passive wiring checks.
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Speaker Test: Check Output, Left/Right, Rattle & Polarity
Five quiet checks help you assess output, channel routing, audible range, rattles and relative playback polarity.
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Bass Test: 20–200 Hz Tones for Speakers & Subwoofers
Step down through quiet sine tones from 200 Hz to 20 Hz to find where your speakers, subwoofer or headphones stop playing clean bass, and why.
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Phase Correlation Meter
Load a stereo file, inspect channel correlation and stereo shape, then compare it with a local mono fold-down before deciding what needs repair.
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Parametric EQ vs Graphic EQ: Which One Should You Use?
Graphic EQ gives you fast fixed-band control; parametric EQ adds adjustable frequency, gain and bandwidth. Here is how to choose by task.
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Compressor vs Limiter: Which One Should You Use?
Use a compressor to shape dynamic movement and a limiter to restrain peaks. Learn where they overlap and when a chain needs both.
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What Is a VST Plugin? Instruments, Effects and Compatibility
A VST plug-in runs inside a compatible audio host. Learn what the host handles, how instruments differ from effects and which compatibility checks matter.
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Bass vs Treble: What They Change and How to Balance Them
A practical guide to bass, treble and tone controls, with approximate frequency ranges and a flat-first method for better settings.
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WAV vs FLAC vs MP3 for Editing, Mastering and Archive
A practical guide to choosing WAV, FLAC or MP3 for active editing, mastering, long-term storage, client handoff and listening copies.
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Mono Compatibility and Phase Correlation in Sound Forge
A practical Sound Forge workflow for spotting phase cancellation, checking a real mono fold-down and repairing the source without losing useful stereo width.
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Pink Noise Generator
Play pink noise instantly, compare white and brown profiles, set a timer, and download a local 30-second WAV without recording or uploading audio.
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Audio Frequency Chart: EQ Bands & Instruments
Use the chart by task: trace a listening problem, compare voice and instrument regions, or map broad EQ bands before making a correction.
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