TrackToMix | TOOLS

Noise Floor & SNR Calculator

Signal Chain · Thermal Noise · Dynamic Range · Exposure

Signal Chain Noise Calculator

Add devices in series and calculate cumulative noise floor through your signal chain.

Cumulative Noise Floor

Add devices to see cumulative noise calculation

SNR Calculator

Calculate Signal-to-Noise Ratio and assess audio quality.

SNR Results

Thermal Noise (Johnson Noise)

Calculate thermal noise voltage using the kTBR formula: V = √(4kTBR)

Thermal Noise Results

Noise Figure Calculator

Calculate noise figure and cascaded noise figure using Friis formula.

Noise Figure Results

Dynamic Range Calculator

Calculate dynamic range and compare to theoretical bit depth limits.

Dynamic Range Results

Equivalent Input Noise (EIN)

Calculate preamp EIN with 150Ω terminated input.

EIN Results

CMRR Calculator

Calculate Common Mode Rejection Ratio for balanced connections.

CMRR Results

A-Weighting Calculator

Convert flat noise measurement to A-weighted values.

A-Weighting Frequency Response

10 100 1k 2k 5k 10k 20k -20 -10 0 +10 +20 A-Weighting Response (dB) Frequency (Hz)

A-Weighting Results

Noise Exposure Calculator

Calculate noise dose percentage based on SPL level and duration.

Exposure Results

Common Equipment Noise Specs

Reference noise specifications for popular audio equipment.

Preamps

Neve 1073 -127 dBu EIN
API 512c -129 dBu EIN
Grace m101 -130 dBu EIN
Focusrite ISA One -128 dBu EIN
BAE 1073 -127 dBu EIN

AD Converters

Apogee Symphony I/O -144 dBFS noise
Lynx Aurora 16 -142 dBFS noise
RME ADI-2 Pro -144 dBFS noise
Universal Audio Apollo -143 dBFS noise
Antelope Orion 32+ -141 dBFS noise

Mixing Consoles

SSL 4000G -129 dBu EIN
Neve 88R -128 dBu EIN
API Legacy Plus -130 dBu EIN
Harrison 32Classic -127 dBu EIN
Mackie Onyx -125 dBu EIN

Digital Interfaces

Focusrite Scarlett 2i2 -128 dBu EIN
PreSonus Studio 68c -127 dBu EIN
MOTU 8M -129 dBu EIN
Zoom PodTrak P4 -120 dBu EIN
Steinberg UR28M -126 dBu EIN