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(01) Stereo correlation meter: Display of the phase differences between the left and right stereo channels. For information on interpreting this, please refer to technical literature.(02) True Peak Display with one decimal point and the corresponding peak level bar on the outer side. In the area close to full scale, peak measurement is particularly complex and critical. First of all, fixed point resolution can only show values up to full scale, since on the digital level, no overs are possible. However, contiguous full-scale words create audible overs and so-called interleaved sample overs*. Secondly, floating point calculation makes it possible to represent values well over 0dB. The measurement and display of peak values in 4x over sampling** leads to a display of overs so frequently that we have found a middle-of-the-road solution. The peak values are measured "normally" and provided numerically. In the case that two contiguous bit words show full scale (all 16 bits at 1 without any oversampling) and at the same time a value of over 0 dB is detected via oversampling metering (run as a parallel process), then the peak display shows "OVER." (03) Peak Bar: The display area ranges from -48 to 0dB. A peak-hold function with a slow release time (ballistics) makes it easy to read and follow the values visually. (* Interleaved Sample Overs (also: inter-sample peaks) are overs which can be detected only after multiplying the sampling rate (over sampling by a factor of 2 to 4). The values are not detected on the digital level because values only up to 0dB can be represented (fixpoint). An interleaved sample over can also occur when the peak headroom is 0.1 dB or more and creates distortion only after leaving the digital domain. (** 4x over sampling = Quadrupling of the sampling rate).Stopping and restarting playback also results in an resetting of the numerical peak display, in the same way that clicking the RESET button does. The numerical display shows the highest value reached since the last reset. (04) Numerical DYNAMIC RANGE Display: (NOT VALID FOR THE OFFICIAL DR VALUE) In link mode, the left-right DR Value is shown to one decimal place. Using the meter on the loudest passages produces values which are very close to those of the Offline Meter. (05) Link Switch: If the "Link" button is deactivated, then two separate DR bars are shown with corresponding numerical displays above the bars. This mode is appropriate for the mixing process in order to have separate, detailed information concerning the inner dynamics of the two stereo channels. (06) DR Display Bar: Color-coded display of the dynamic range which is used. Values of less than DR8 are displayed with the color red. Values of DR14 or more are green. Values between the two are displayed in various shades of yellow. The DR bar shows the average difference between peak and RMS and corresponds to the so-called crest factor. Since the bars do not display any static information in order to indicate the top 20 RMS values, in specific situations the indications do not always completely reflect the official values given by the Offline Meter. Keep in mind that the objective is to standardize the "thickness" of a recording and not to measure the overall dynamics. The variation between the two measurement devices increases as the dynamic range of the material measured is increased. The bars serve to visualize the crest factor. If you work with more headroom during mixing, a decreasing bar that moves downwards will warn you of too much compression, because the display of the crest factor is independent on the peak room which is used. (07) RMS Display Bars: We decided to use the standard calculation of loudness in RMS (root mean square) because it proved to be superior to most other measuring methods with complex frequency weighting models when put through comparative testing. Those methods which were better required a great deal of CPU resources and are very controversial among specialists. The idea behind the DR Meter is a simplified way of determining thickness and NOT a psycho-acoustically perfect loudness measurement tool. The RMS value is corrected by +3 dB so that sine waves have the same peak and RMS value. This is the case with most meters.(08) Numerical RMS Display: The display shows the current average loudness very slowly, making it very practical for having an idea of the amount of current loudness. (09) Digital 0 Display: The "minus-infinity" display lights up as so as there is digital 0 at the input.(10) Reset Switch: Resets the numerical peak headroom display.(11) Mono Switch: This switches the stereo signal to mono for checking the signal and turns red when activated. This switch can be used as a mono switch for checking stereo compatibility when the DR Meter inserted into the stereo section of your DAW. The mono switch is a practical tool, since many DAWs no longer have one.Buffer settings The TT Dynamic Range Meter Plug-in is optimized and tested with buffer sizes down to 256ms. Lower settings make no sense in the mastering and can cause problems within the plug-in.
----------------------------------------------- Statistics for: Dire Straits - Brothers In Arms.wav Number of Samples: 146051556----------------------------------------------- left right Peak value: over --- over Avg RMS: -22.46 dB --- -23.27 dB DR channel: 18.92 dB --- 19.58 dB----------------------------------------------- Official DR value: DR19 ===============================================
foobar2000 1.3.20 / Dynamic Range Meter 1.1.1log date: 2024-08-28 10:42:51--------------------------------------------------------------------------------Statistics for: ?-Dire Straits - Brothers In ArmsNumber of samples: 146051556Duration: 55:12 -------------------------------------------------------------------------------- Left RightPeak Value: 0.00 dB --- 0.00 dB Avg RMS: -22.46 dB --- -23.27 dB DR channel: 18.93 dB --- 19.59 dB --------------------------------------------------------------------------------Official DR Value: DR19Samplerate: 44100 HzChannels: 2Bits per sample: 16Bitrate: 1411 kbpsCodec: PCM================================================================================
