Yendo Starritz

All About Music Production

Tag: METERING

  • Pink Noise

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    General – All the Frequency Response that can Get Heard by Human Ear – i.e. Same Audible Power in Each of the Frequency Ranges Throughout the Octaves – Has Lower Frequency than any other Type of Noise Match Source to Reference via Pink Noise – basically you Generate Pink Noise and Insert a EQ, Guitar…

  • PPM / Peak

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    – Programme Peak Meter – Peak Value is the Maximum Wave Amplitude Measured in dB – Measures in dBu (as in RMS) – Similar to RMS but it is the Measured “Peak” of a Signal – Used in Analog & Digital Devices – Fast Response with a Integration Time of 5ms – Intended to Reflect…

  • RMS

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    General – Measures the “Root Means Squared” of a Signal  – a Mathematical Way of Expressing the Amount of Energy in a Signal – Used in Analog & Digital Devices  – Measures in dBu (as Peak) – Slow Response with a Integration Time of 50ms – Represents an Average of the Total Signal and is…

  • RT 60

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    – The Length of the Reverb Tail, the Time it takes for the Reverb to Decay to a Level 60dB Lower that the Original Level – Often seen in Reverbs but also relevant for Measurements of Rooms etc. – Describes the necessary Time it takes, until a Test Tone “Lands” in the “Diffuse- Field” by…

  • Short Term Loudness

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    – Provides More Detailed Loudness Information by Measuring the Signal More Frequently (Like to a Traditional RMS Meter) – i.e. the Loudness History Curve Draws Much More Movement in Short/Momentary Term, where a Integrated Loudness Curve Reacts Quiet Slow – Short Term Integrates Averages of Loudness Over the Last 3 Seconds (i.e. Averaging the  Loudness…

  • Spectrogram

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    General – Also called Spectrograph  – a traditional Waveform is Displayed in 2D with Amplitude (Vertical) and Time (Horizontal)  – but a 3D Spectrogram Shows Frequency in the Vertical Display, Amplitude as Height in 3D with Variable Brightness and Time Horizontal – Variable Brightness means, the Brighter the Display the Louder the Content – X-Axis…

  • SPL (Sound Pressure Level)

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    General – Variations of Ambient Pressure caused by a Sound Wave – 20 Micro Pascals – Logarithmic Measure of the Changes in Pressure Relative to a Reference Level – Threshold of Human Hearing, means a SPL Meters “Ear” (Input Threshold of Microphone) is similar to our Ears Reaction on Real World Sound Waves / Noise…