ALMx 5.1
Contents
1. Figure 27 ALMx 5 1 Momentary Loudness Sound Field 93 24 beDSP ALMx 5 1 Sound field for True Peak Loudness Using the same scale either 20 dBTP or 18 dBTP as the True Peak Meter the True Peak Vec torscope provides a real time view of the surround image of the signal representation of LFE channel included see Figure 28 l The surround image of the sound green if the true peak values are below the max true peak threshold set in the settings tab and red if the values are above the thresh old 2 The blue circle the LFE channel 3 The red zone True Peak Max Level Limit In this particular case the Sound Field is created using the True Peak Loudness Values Naturally the limit set for True Peak Max Level from Settings see Page 26 will also be used in the Sound Field display The bar will become red starting from the point where the value is above the threshold see Figure 29 Figure 28 ALMx 5 1 True Peak Sound Field Figure 29 ALMx 5 1 True Peak Loudness values above the threshold Correlation Meters The correlation meters indicate the degree of similarity between the channels L R L C R C Ls Rs L Ls and R Rs see Figure 30 If the audio of the channels is similar the drawn values will be in the 1 zone and If It s con siderably different the values will be in the 0 zone When two channels are out of phase the meter draws In the 1 zone ALMx 5 1 uses a color code gree2. OSX Installation l Double click on the ALMX5lInstaller 2 mpkg and an installation window will ap welcome to the ALMS38undle tntetier pear See Figure 2 Press the Continue button to start the installation Introduction Destination You will be guided through the steps necessary to n install this software installat Summ Select a Destination installing this software requires 42 5 MB of space Figure 3 Installation window You have chosen to install this software on the disk ow 2 Select a Destination for the installation see Figure 3 and then press the Continue button Figure 2 Destination of the installation 10 Installation and Authentication beDSP 3 Select the Installation type you want and then press the Continue button see Figure 4 This will take 42 5 MB of space on your computer Click instal to perform a standard installation of this software on the disk Macintosh HD iastallati Sum Figure 4 Installation Type 4 An information message will appear Press the Install button if you have The installation was successful the necessary free space for a proper installation see Figure 5 a 5 Wait until the installation is completed and a confirmation window appears see Figure 6 Press the Close button and pass to the Authentication part Figure 6 Installation completed 11 beDSP Windows Ins
3. beDSP License manager x DSP User user bedsp net Password Load your license request Browse Choose your license request Your license reply will be saved in the same location Figure 16 Authorizing your license request 16 ALMx 3 1 beDSP License manager 63 Load your license reply received from the beDSP License Manager to finish the authorization Figure 17 Loading your reply 7 Back on your computer from the main menu see Figure 10 pick Offline Activation then choose Load Reply see Figure 17 A browser window will open and you have to select your reply 8 After loading your reply a confirmation window will appear like the one from Figure 13 Press Ok and enjoy your product Loudness and True Peak metering at your hand ALMx 5 1 application has a simple interface with 7 main parts e Loudness metering 1 see Page 19 e True Peak metering 2 see Page 22 Vectorscope Correlation Meters Sound Field and 5 1 to Stereo downmixing 3 see Page 23 Application Settings 4 see Page 26 Audio Settings 5 see Page 27 Logging 6 see Page 28 17 Interface l Integrated Loudness or Program Loudness in LUFS LU or LKFS Short Term Loudness in LUFS LU or LKFS Loudness Range in LU Momentary Loudness in LUFS LU or LKFS Real time Moment Loudness Meter Loudness Range bar Indicator Short Term Loudness ind
4. e True Peak Level Metering with peak hold e Real time vectorscope for True Peak and Momentary Loudness e Sound Field view e Correlation meters for L R L C R C Ls Rs L Ls and R Rs channels e Downmixing from 5 1 to stereo ed e Max True Peak Level calculated using inter sample peaks that can be missed In 29 Ee quantization e Accurate measurements for all the usual sample rates 44 1 kHz 48 kHz and multi 41 _ ples Te g e Low CPU usage due application optimization 59 e Logging files in csv and XML format e Variable colors for loudness descriptors according to the comfort zone 26 7 e Variable thresholds for True Peak and Short Term Loudness _ vine e Variable threshold for Short Term Loudness e Lock option e Kiosk mode option 00 01 20 4353 Figure 1 ALMx 5 1 beDSP beDSP AIM 5 Loudness and True Peak metering at your hand Loudness Descriptors e Integrated Loudness or Program Loudness in LUFS LU and LKFS describes the long term integrated loudness of an audio material from start to stop This is measured using the specifications of international standards for Europe ITU R BS 1770 with no gate or ITU R BS 1770 3 with sate at 10 LU for America ATSC A 85 and for Japan ARIB TR B32 The gate Is used to exclude blocks of audio signal 10 LU below the absolute gated loudness level for Settings see page 26 This ensures that an audio material with long periods of silen
5. FS Time Figure 19 ALMx 5 1 Loudness Metering Scales l ALM 5 1 calculates the values for the most important descriptors specified by the standards Integrated Loudness Program Loudness Mo mentary Loudness Short Time Loudness Loudness Range and provides real time metering for Momentary Loudness You can also choose the scale for Momentary Loudness according to your needs There are two options that can be accessed in the Settings window see Page 24 e The standard EBU with reference level at 23 LUFS ATSC and ARIB with reference level at 24 LUFS see Figure 20 and Figure 21 e The scale 9 LU for a good resolution in the reference level zone see Figure 20 and 18 LU for a bigger dynamic range see Figure 21 19 USP ALMx 5 1 2 00 01 17 322 PA 0001 26 29 272 eseguetdmaas 00 01 05 201 ML LUPS Time Time Le Time Figure 20 ALMx 5 1 EBU ATSC and ARIB scales for 18LU 2 You can use the relative scales with the reference level of 0 LU see Figure 22 In this case the scales are the same for all the standards EBU ATSC and ARIB 3 The measurements for Integrated Loudness and Loudness Range can be done taking or not into account the relative gate of 10 LU below the absolute gated loudness level When the sate is on the name of the standard is green and when It s off the name Is red see Figure 23 F y a a i 6 18 00 00 31 393 21 COROT APZ17 Figure 23 ALMx 5 1
6. Markers for Start and End allowing you to see the statistics for a specific portion of the graph e Loudness Range e Max Short Term Loudness value with time position calculated from the values selected between the markers e Max Momentary Loudness value with time position calculated from the values selected between the markers e Max True Peak value with time position calculated from all the values e The start time stop time and the duration of the measurements e On the graph you can view either the short term value or the mo mentary value and the timestamp e Variable short term loudness limit e Variable momentary loudness limit e Zoom in out option e Option for high low resolution 28 i d SA AJDIO METER SETTINGS SETTINGS Uwers cawpt LO Library Logs ALMS liog 15 Oct 2014 16 20 56 Program Loudness TAF UWS Loudness Range M0 LU Mia Short Tom Loucivess 221i UFS Mas Momertary antes 49 ULES Max Trae fask gt F E wets i mein iis Datir 1min llea Podio 415 Oct 2014 142204 Postion 15 O0ct 2014 1422700 Posio 315 Oct 2014 140447 howe tay wvet Jl UFS Low Renoistion Mornertiey Loudaesi 62354 16 24 20 16 244 ALMx 5 1 Software License Agreement beDSP This License Agreement Is entered into by you the beneficiary and Audio Design Digital Art S R L the software vendor By accepting this agreement you hereby confirm that you are in complete agreement with its terms and c
7. beD P User Manual beDSP it K lt 4 e PLAY STOP RESET SETTINGS LOG LOCK Peak s p 2 2 2mo o EBU saz ttzzsttiis M x 41 y 2222 2 2 N Mode E e a o S 2 0 Su X i 40 tle4 a S SS ff amp 23 IL LUFS j f 29 R 1 1 1 1 i 23 1 25 ES Soe m e VERSION 2 n a we 40 40 S 8 iat rr ee I itt Ss oi 17 Lye e i LRALU 59 22 5 00 01 04 783 Downmix to 44 112 16 282 328 307 5 1 Stereo ML LUFS Time L RI C E Ls ALMX 5 1 Audio Loudness and True Peak Meter application BS1770 rev 3 EBU R128 ATSC A 85 and ARIB TR B32 compliant Ideal for Mono Stereo and 5 1 channe formats featuring measurements for Momentary Short Term and Integrated Loudness with Loudness Range and Max True Peak Level This page intentionally left blank CONTENTS neDSP Loudness and True Peak metering at your hand 1 ALMx 5 1 Loudness and True Peak Meter 5 2 Installation and Authentication 9 3 How t work 17 3 1 Loudness Metering 19 3 2 True Peak Metering 22 3 3 Sound Field Vectorscope Correlation Meters and Downmixing 23 3 4 Application Settings 26 3 5 Audio Settings 27 3 6 Logging 28 4 ALMx 5 1 Software License Agreement 29 This page intentionally left blank 1 ALMx 5 1 Loudness and True Peak Meter beDSP ann AlM 5 1 PLAY STOP IL LUFS Taking the idea behi
8. cale For a higher dynamic range use the 18 LU scale Both a value and a bar indica tor are available for Loudness Range so you can decide if your audio needs more dynamic compression Two scales with different reference levels 18 dBTP and 20 dBTP are available for the True Peak Meter ALMx 5 1 takes into account all the inter Samples that can be missed in quantization The application features a timecode counter of the measurements and you can reset the measurements any time you want The application allows you to have more control over your loudness by recording all the values measured in csv and XML files Using ALMx 5 1 Log feature you can see the graphical representation of the Short Term Loudness and Momentary Loudness for all the logs files saved ALMx 5 1 offers you a True Peak Vectorscope a Momentary Loudness Vectorscope Sound Field Display and Correlation Meters for L R L C R C Ls Rs L Ls and R Rs Also available is a 5 1 to Stereo downmixing option Features e Standalone Loudness and True Peak Metering for Windows and OSX e Channel Formats mono stereo and 5 1 e Full compliance with Loudness standards BS 1770 rev 3 EBU R128 ATSC A 85 and ARIB TR B32 specifications e Complete loudness measurements using universal descriptors Integrated Loudness Program Loudness Momentary Loudness Short Term Loudness Loudness Range e Real time metering for Momentary Loudness Short Term Loudness and Loudness Range
9. ce will not be too loud after a possible loudness normalization e Momentary Loudness in LUFS LU or LKFS calculated with a time window of 400 ms e Short Term Loudness in LUFS LU or LKFS calculated with a time window of 3 s e Loudness Range in LU loudness dynamic range from start to stop that helps you decide if dynamic compression Is necessary e True Peak Max Level in dBTP indicates the maximum value of the signal waveform in the continuous time domain this value is calculated using inter sample peaks that can be missed in quantization 1 LUFS Loudness Level K Weighting referenced to digital Full Scale 2 LU Loudness Units 1 LU 1 dB 3 LKFS Loudness Level K weighted 4 dBTP deciBel referenced to digital Full Scale measured with a True Peak meter 2 Installation and Authentication DSP Loudness and True Peak metering at your hand Minimum System Requirements 4 MAC PC Dual Core CPU Intel or AMD with SSE2 support Dual Core CPU Intel or AMD with SSE2 support 2GB RAM 2GB RAM OSX 10 6 Windows 7 Available Formats MAC Standalone PC Standalone 32 bits Standalone 64 bits Ce a ee alala beDSP ALMx 5 1 Loudness and True Peak metering at your hand Thank you for choosing ALMx 5 1 Once you have downloaded the package ALMxS5Ilinstaller and you own a serial number please follow the next steps for the installation for OSX or Win dows and authentication of your product
10. fline Activation from the main menu see Figure 10 then Generate Request see Figure 14 l Insert your serial number and select the folder where you want to save your license request see Figure 15 2 After clicking ok your license request will be saved A window containing the license request will be revealed 3 Copy your license request on a flash drive or any data storage device and move It on the online computer this second computer must have the beDSP license manager installed and an internet connection so you can continue your activation beDSP License manager Sore beDSP License manager 3 Serial Number 11111111111111111111111111111111 Choose your destination folder Browse Save your license request and load it using the beDSP license Manager on a computer connected to internet Choose the destination folder for your license request Figure 14 Offline Activation options Figure 15 Generating the license request 15 beDSP 4 From the Online Activation menu pick For Another Computer see Figure 11 5 In the authentication window see Figure 16 insert your beDSP username same as your e mail password and load your license request Click ok for authorization 6 A folder with the license reply will be revealed named LicensesToMove This folder is saved in the same place you ve copied your license request Now move your license reply on the computer you wish to authorize
11. gn up and create your account The username will be the same as the e mail you used for registration Online Activation l If you have an internet connection select Online Activation otherwise you will have to select Offline Activation see Figure 10 2 If you want to activate the application on your computer select For this computer see Figure 11 beDSP License manager O o beDSP License manager Go For this For another computer computer Request Trial if you don t have a beDSP account please click here Use your beOS account and insert your serial number to authorize the product you bought Figure 10 Main menu Figure 11 Online Activation options 13 beDSP ALM 51 3 An authentication window will appear see Figure 12 Insert your beDSP username same as your e mail password and serial number beDSP License manager 63 beDSP License manager DSP User user bedsp net a License Applied Password You have successfully applied your full license for ALMS5 1 Serial Number 11111111111111111111111111111111 Ok Click for authorization Figure 12 Authentication window Ok Figure 13 Confirmation window 4 A confirmation window will appear that specifies the name of the product you have just activated and the type of license see Figure 13 Press OK and enjoy your product 14 beDSP Offline Activation If you don t have an internet connection select Of
12. icator Measurements can be done according with EBU ATSC or ARIB specifications 9 Time counter for the duration of Integrated Loudness and Loudness Range measurements 10 Real time True Peak Meter 1 Max True Peak Level in dBTP for each channel 12 Peak Led indicator 13 Peak Led indicators 14 Play Stop the measurements for Integrated Loudness and Loudness Range When the Play button Is pressed a new log file is made 15 RESET all the measurements 16 Settings Window 00 01 20 433 17 Log Window 5 1 18 True Peak or Momentary Loudness SoundField Vectoro scope 19 True Peak or Momentary Loudness selector 20 Channels corellation meters 21 Downmixing from 5 1 to stereo 22 Lock option i i i Comm uo amp W N TITT IUIN Ad LALL per areata ge prrareaaregey a ep Figure 18 ALMx 5 1 Interface 18 beDSP Loudness Metering Descriptors values 2 1 LUFS The values for all the main descriptors Integrated Loudness Program Loudness Momentary Loudness Short Time Loudness Loudness Range are available see Figure 19 SL LUFS If you are in the Play mode all the parameters are measured If you press the Stop button the Inte grated Loudness and Loudness Range remain unchanged till the next Play When the Reset button Is a CU pressed all the measurement are restarted 7 1 Whenever you are In the Play mode the time will be counted in hh mm ss ms aa 20 3 00 02 50 597 ML LU
13. minals users 29 30 beDSP ALMx 5 1 Loudness and 3 Copyright The ALMx 5 1 product is the property of Audio Design Digital Art S R L and it is lawfully protected from fraudulent reproductions You may execute a single copy of this product on disk or hard disk as an understandable precaution in case the original installation disks are damaged or destroyed back up Any other copy will be considered illegal You will not copy the product for any other purpose nor will you edit accompanying or explanatory materials without the express approval of the vendor 4 Other restrictions You will not lend sell or rent the product under any circumstances This Software License Agreement Is considered valid only if accompanied by the origi nal proof of purchase 9 Warranty This software and the accompanying files are commercialized as 1s without a specific level of performance guarantee The correct utilization procedure for any software includes thorough testing of the program in an environment free of critical information or data before trusting its quality and perform ance The vendor declares that it has not included or has any knowledge that the software contains any malware or Instructions which may lead to the deletion of data without the user s agreement The liability of Audio Design Digital Art S R L is exclusively limited to the replacement of the copy of the soft ware with another copy The vendor holds no liability in c
14. n tones for the 1 zone yellow tones for the 0 zone and red tones for the 1 zone see Figure 31 For a correct mix the main purpose would be to have the correlation values near the l zone The meters also have a display history the brightest colored value is the most recent one Downmixing The ALMx 5 1 Downmixing algorithm is in concordance with ITU specifications This way you can be sure that your program material is compatible with sound systems which are provided with a lower number of channels see Figure 32 Note that the Downmixing it is used only for metering the audio material isn t actually changed beDSP Figure 31 Color zones for Correlation Meters Downmix to Stereo Figure 32 Downmixing option 25 beDSP hd oo g AUDIO METER SETTINGS SETTINGS mate Meter on A sw EBU ATSC ARIB lategr ated bbudaeis gatting off True peak mun evel STP 1 Short term max ievel LUFS 18 Figure 33 ALMx 5 1 Application Settings 26 ALMx 5 1 Application Settings Loudness Standards EBU ARIB and ATSC e Loudness Scale 9 LU and 18 LU e Loudness Units LUFS LKFS and LU e True Peak ref level 18 dBTP and 20 dBTP e Integrated Loudness gating off the gate isn t used and the Integrated Loudness and Loudness Range values are calculated for the entire audio material e True Peak max level from 12 dBTP to 0 dBTP Sets the maximum value for the signal wavefo
15. nd the ALM 5 1 plugin a step further we have developed a standalone application with extended features that offers more control and power allowing you to use it in more complex Situations the ALMx 5 1 stands for Audio Loudness and True Peak Meter with extended features The application was created as an aid for television networks and media services providers Just like the ALM 5 1 plugin the driving forces behind the application are the algorithms developed according to the international broadcast standards BS 1770 EBU R128 ATSC A 85 and ARIB TR B32 based on research and perception tests With the help of the log feature you can pinpoint the time and the du ration of the loudness disturbance ALMx 5 1 offers you full Loudness and True Peak Metering for Mono Stereo and 5 1 channel formats fea turing measurements for Momentary Short Term and Integrated Loudness with Loudness Range and Max True Peak Level Additionally the application offers you a general or a more detailed overview of your measured material any time you want Two kind of files are used to store different information in csv and XML format beDSP ALM 5 Loudness and True Peak metering at your hand For the Integrated Loudness and Short Term Loudness values ALMx 5 1 uses a color coding This way you will know how your program loudness fares compared to the accepted tolerance of each standard For a higher resolution in the target zone you can use the 9 LU s
16. onditions Should you not agree to the following terms and conditions we request that you do not use THIS SOFTWARE and do not activate this Software License Agreement l Royalties The royalties connected with this software are protected by the governing law You are obligated to acknowledge this law before accepting this license agreement 2 Rights of ALMx 5 1 software license holder This license agreement allows you to utilize a copy of the ALMx 5 1 software created by Audio Design Digital Art S R L and legally acquired by its user in addition to this license on one single terminal computer owned by you The utilization of the same copy of the ALMx 5 1 software on multiple terminals computer is forbidden regardless whether such terminals are your ownership or not Each terminal computer that will utilize a copy of the ALMx 5 1 soft ware requires its individual license Modification or update of the operating system on which the initial software license has been activated will be performed with the express approval of Audio Design Digital Art S R L If the network version of the ALMx 5 1 software has been purchased you may install the server software on one single system generally directly on the server Should you know anticipate or observe that the number of users accessing the software exceeds the number of legally obtained active licenses please contact us in order to activate the correct number of licensed for each of your ter
17. onnection with unauthorized interventions on the structure of the software product Also the ven dor will not accommodate any requests related to features which are not built in to the software design nor will it address any problems resulting from the incorrect application of instructions of use provided with the software Potential modification to the product which may be requested to the vendor will be separately negotiated Audio Design Digital Art S R L ensures standard technical assistance by e mail during on working days during business hours Personalized updates and support may be provided as a result of a separate Agreement By activating and utilizing the software the beneficiary accepts that the product may contain hidden inconsistencies or errors as a result of the complex ity of the software Such Inconsistencies or errors will be promptly remedied following a notification to Audio Design Digital Art S R L The beneficiary is obligated to regularly check the performance of the software and notify the vendor immediately when an error Is observed peDSP ALMx 5 1 Audio Loudness and True Peak Meter application BS1770 rev 3 and EBU R128 compliant Contact web www bedsp net e mail contactabedsp net
18. rm calculated using inter sample peaks that can be missed in quantization Above this value the peak led indicators are red the level is the same for all the channels e Short Term max level from 24 to 0 if the unit is set to LUFS or LKFS and from 0 to 24 if the unit is set to LU If the threshold is reached then the value of the short term loudness will become red e Peak hold from 0 s to 10 s Represents the period of time the Peak hold ers are on e Overload hold from 0 s to 10 s Represents the period of time the Peak Led indicators are on ALM 3 1 anno ALME 5 1 ALIDIO METER SETTINGS psp an e aput Sampie rate P EN we SL ampas 11 6 mi R inoue input 6 Tar Guill ot Qumput Lm Output 2 i lt lt nome gt Mig lt lt nore gt gt ES lt lt nore gt gt aa lt lt none gt gt Figure 34 ALM5 1 Audio Settings beDSP Audio Settings The flexible and intuitive audio routing interface makes it easy for you to configure the inputs and outputs according to your needs Also you have e Configurable Audio Input and Output e Variable sample rate e Variable audio buffer size e Every possible channel routing combination available 21 beDSP Logging _ An important feature of the ALMx 5 1 is the log option which allows you to view a loudness graph for short time loudness and momentary loud ness at all times and some useful descriptors e Program Loudness e
19. tallation Welcome to the ALM5 1 Setup Wizard Ths vel instal AMS 1 verson 1 0 0 on your computer It is recommended that you cose al other acpicatons before Continua np Cick Next to continue or Cancel to ext Setup Figure 7 Setup window l Double click on the ALMXInstaller 2 Bundle and a setup win dow will appear see Figure 7 Press the Next button to con tinue the setup 2 When the setup Is ready to begin installing ALMx 5 1 on your computer see Figure 8 press the Install button 3 Press the Finish button to exit the Setup You have the possibility to automatically launch the ALMx 5 1 application see Figure 9 12 ALMx 5 1 Loudness and True Peak metering at your hand Ready to Install Sete is now ready begn eistaling AMS 1 on your Commenter Cick ista to contre with the retaliation Completing the ALM5 1 Setup Wizard Setup hes frushed nstaling AMS 1 on your Computer The sopicaton may be launched by selecting the netalled icons Chick Fresh to ent Setup 7 Launch AMS 1 Figure 9 Installation start beDSP Authentication Go to the Applications ProgramFiles where you will find the beDSP folder Double click on the ff beDPSLicenseManager icon and the main menu window will appear see Figure 10 with three available options Online Activation Offline Activation and Trial Request For any type of activation you must have a beDSP account If you don t have one go to www bedsp net si
20. tion gives you the possibility to configure your measurements by accessing the Settings window see Page 26 You can choose the True Peak reference level 18 dBTP or 20 dBTP see Figure 25 the Peak Holding Time and the Overload Hold Time pireriite 1 iit prrrrtiiti 1 il Pr rrr erie de irate pr eer eee ee eae ae Pree eee eee eae aa ELLIS LEE i EE Figure 25 ALMx 5 1 True Peak Metering ref lev 18 dBTP left and ref lev 20 dBTP 22 beDSP Sound Field Vectorscope Correlation Meters and Downmixing ALMx 5 1 offers you a Vectorscope a Sound Field Display either True Peak or Momentary Loudness and Correlation Meters for L R L C R C Ls Rs L Ls and R Rs There is also available a 5 1 to Stereo downmixing option Vectorscope The main purpose of the vectorscope Is to display a stereo image of the audio signal The channels can be changed from the dropbox you can switch between L R L Ls and R Rs see Figure 26 The history of the Vectorscope will fade out slowly providing you with the information needed to determine if the stereo separation is according to your needs Momentary Loudness Sound Field The Sound Field Display can use the Momentary Loudness values to create a real time view of the surround image of the signal The axes are the same as for the Loudness Meter Indicator See Figure 27 Display Channels PEPS True Peak Figure 26 ALMx 5 1 Vectorscope Oram sound Field Loudness
21. with left and without right relative gate Time Time Figure 22 ALMx 5 1 Relative scales for 9 LU left and 18 LU right Hawa it ararkec How It works wis Color Code For the Integrated Loudness ALMx 5 1 uses a color code This way you will know how your program loudness fares compared to the accepted tolerance of each standard Figure 24 The color of Integrated Loudness parameter Is green If the Integrated Loudness matches the standard s specifications yellow if it s around the standard s specification but you still have to turn the volume up down red if the material is annoyingly loud soft ATSC and ARIB EBU 14 16 Annoyingly loud 18 20 Turn volume down 23 EBU accepted tolerance in Turn volume up 2B 30 35 Annoyingly soft 41 MLk LUFS Figure 24 ALMx 5 1 Color Code beDSP The accepted tolerance zone Is the range of loudness that is comfortable to a listener Note that the Inte grated Loudness may not be constant through the pro gram It can vary within a specific zone according to the content requirements 15 17 19 Annoyingly loud 21 Turn volume down 24 ATSC accepted tolerance 27 Turn volume up 29 31 35 Annoyingly soft 42 MLk LUFS 21 heDSP ALMx 5 1 True Peak Metering ALMx 5 1 offers you real time True Peak Metering with peak hold for mono stereo and 5 1 channels Beside this the applica
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