Arri Formats and Data Rate Calculator

ARRI Camera Format and Data Rate Calculator

This calculator helps you estimate the data rate requirements for various ARRI camera formats and recording settings. Understanding these rates is crucial for selecting appropriate media, managing storage, and ensuring smooth post-production workflows.

10-bit 12-bit 14-bit
RGB (3 samples/pixel) Grayscale (1 sample/pixel) YCbCr 4:2:2 (2 samples/pixel) YCbCr 4:2:0 (1.5 samples/pixel)
function calculateDataRate() { var sensorWidth = parseFloat(document.getElementById("sensorWidth").value); var sensorHeight = parseFloat(document.getElementById("sensorHeight").value); var frameRate = parseFloat(document.getElementById("frameRate").value); var bitDepth = parseFloat(document.getElementById("bitDepth").value); var colorFormat = parseFloat(document.getElementById("colorFormat").value); var compressionRatio = parseFloat(document.getElementById("compressionRatio").value); var resultDiv = document.getElementById("result"); if (isNaN(sensorWidth) || isNaN(sensorHeight) || isNaN(frameRate) || isNaN(bitDepth) || isNaN(colorFormat) || isNaN(compressionRatio) || sensorWidth <= 0 || sensorHeight <= 0 || frameRate <= 0 || bitDepth <= 0 || colorFormat <= 0 || compressionRatio k = 4,665,600 / (28.17 * 18.72) ≈ 8809 var pixelsPerSqMm = 8809; // This is a derived constant based on S35 example. Very generalized. var totalPixels = Math.round(sensorWidth * sensorHeight * pixelsPerSqMm); var bitsPerPixel = bitDepth * colorFormat; var uncompressedDataPerFrameBits = totalPixels * bitsPerPixel; // Calculate compressed data rate based on compression ratio // Data Rate (bits per second) = (Uncompressed Data Per Frame Bits * Frame Rate) / Compression Ratio var compressedDataRateBitsPerSecond = (uncompressedDataPerFrameBits * frameRate) / compressionRatio; // Convert to MB/s or GB/s var dataRateMBps = compressedDataRateBitsPerSecond / 8 / 1024 / 1024; var dataRateGBps = dataRateMBps / 1024; var resultHTML = "

Estimated Data Rate:

"; resultHTML += "" + dataRateMBps.toFixed(2) + " MB/s"; if (dataRateGBps >= 1) { resultHTML += "" + dataRateGBps.toFixed(2) + " GB/s"; } resultHTML += "Note: This calculator uses physical sensor dimensions to estimate pixel counts. For precise data rates, refer to ARRI's official specifications for specific camera models and recording formats (e.g., ARRIRAW, ProRes). The 'Compression Ratio' is a simplified input; actual codec compression is complex."; resultDiv.innerHTML = resultHTML; } .calculator-container { font-family: sans-serif; max-width: 600px; margin: 20px auto; padding: 20px; border: 1px solid #ccc; border-radius: 8px; background-color: #f9f9f9; } .calculator-container h2 { text-align: center; color: #333; margin-bottom: 15px; } .input-section { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 15px; margin-bottom: 20px; } .form-group { display: flex; flex-direction: column; } .form-group label { margin-bottom: 5px; font-weight: bold; color: #555; } .form-group input[type="number"], .form-group select { padding: 8px; border: 1px solid #ccc; border-radius: 4px; font-size: 1rem; } button { display: block; width: 100%; padding: 12px 20px; background-color: #007bff; color: white; border: none; border-radius: 5px; font-size: 1.1rem; cursor: pointer; transition: background-color 0.3s ease; } button:hover { background-color: #0056b3; } .result-section { margin-top: 20px; padding: 15px; background-color: #e9ecef; border: 1px solid #ced4da; border-radius: 5px; text-align: center; } .result-section h3 { margin-top: 0; color: #495057; } .result-section p { font-size: 1.2rem; font-weight: bold; color: #28a745; /* Green for positive results */ } .result-section small { color: #6c757d; }

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