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Audison bit Tune, User Manual

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Audison bit Tune User Manual Download Page 88

USER’S MANUAL / bit Tune /

88

Placing the 

EMS

 probe in the vicinity of electrical parts or on the car’s wiring with the engine running, you can identify 

acoustically, through the internal speaker, the higher sources of electromagnetic interference.

Locate the noisiest areas, avoid them when wiring audio cables. Prefer the less disturbed areas for the installation of 

audio equipment (amplifiers, processors, passive crossovers, etc.).

12V

EMS

PC ANALYZER

LINE NOISE

POWER

SEGNAL INPUT

SELECT

RIGHT

VOLUME

MONITOR

47 OHM

SPK SYM

NO LOAD

LEFT

PRE IN

BNC

SPK IN

PROBE

MIN •

• MAX

LOAD SIMULATOR

SPEAKER IN

RIGHT

VOLUME

MONITOR

47 OHM

SPK SYM

NO LOAD

LEFT

SPK IN

MIN •

• MAX

LOAD SIMULATOR

SPEAKER IN

BATTERY

GROUND

8

8.4 

ELECTROMAGNETIC NOISE ANALYZER

HIGH NOISE

LOW NOISE / NO NOISE

Summary of Contents for bit Tune

Page 1: ...USER S MANUAL rev 2 2 audison com ...

Page 2: ...T SIGNALS 17 5 SOFTWARE AND DRIVERS INSTALLATION 19 5 1 PC SOFTWARE AND DRIVER INSTALLATION WIZARD 19 5 2 UNINSTALLING BIT TUNE SOFTWARE AND DRIVER 26 6 BIT TUNE DESKTOP 27 6 1 SOFTWARE START IN OFFLINE MODE 28 6 2 SOFTWARE START IN BIT TUNE PROCESSOR MODE 28 6 2 1 CONNECTION STATUS MENU 30 6 2 2 SESSION NOTE MENU 30 6 2 3 FILE MAIN MENU 31 6 2 4 TOOLS MAIN MENU 33 1 Oscilloscope 33 2 Real time an...

Page 3: ...CULATION OF TIME DELAYS AUTO TIME ALIGNMENT 69 7 8 RTA MEASUREMENT 72 7 8 1 RTA OF AN AUDIO SYSTEM WITH Audison bit PROCESSOR 72 7 8 2 RTA CALIBRATION OF AN AUDIO SYSTEM WITHOUT AUDISON BIT PROCESSOR 75 7 9 BATTERY SCOPE 77 7 10 MEASUREMENTS WITH AN OSCILLOSCOPE 79 7 10 1 MEASUREMENTS ON A POWER AMPLIFIER 79 8 USING BIT TUNE WITHOUT A PC 82 8 1 LOAD SIMULATOR SPEAKER IN 82 8 2 SPEAKER IN SIMULATOR...

Page 4: ...nd experiment according to your creativity AUTOMATIC CALIBRATION OF AUDISON BIT PROCESSORS The PC software through the hardware acquisition system connected to the PC via USB performs the analysis of the acoustic response of the car s passenger compartment and it sets through a Target curve the optimal acoustic response and time delays that the installed processor will store in memory The Target c...

Page 5: ...dates are installed in the PC Before performing the measurements check that the Antivirus is not scanning the PC If you experience any problems it is advisable to disable the Antivirus even if it is not scanning the PC and close all the other running programs 2 Please use only the specific power adapters provided in the package 3 For use in the car please check that the vehicle s electrical system...

Page 6: ...T RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN 1 N 1 EMS ELECTROMAGNETIC SNIFFER ABS carrying case X 4 Qulck start guide CD ROM containing bit Tune Software This User Guide pdf Audio test tracks N 1 Ground cable with alligator connector N 2 Fuse N 1 BNC T adapter a u d i s o n i s p a r t o f e l e t t r o m e d i a 6 2 0 1 8 P o t e n ...

Page 7: ...SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SIGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SIGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN 232 mm 9 13 in 150 mm 6 in 108 6 mm 4 3 in 36 mm 1 5 in 51 ...

Page 8: ...an Audison processor bit One bit Ten bit Ten D to the bit Tune and manage the calibration functions The connection standard is USB 1 1 2 0 compatible 8 USB IN USB B connection socket to connect the processor to a PC and manage functions via the bit Tune PC software The connection standard is USB 1 1 2 0 compatible 9 DC 12V Jack for external power supply Please use the power adapters supplied with ...

Page 9: ...ck Black Black Black Red Red Red Red Red Black wire Black wire Black wire White wire White wire White wire Green wire Green wire Green wire Red wire Red Red Black Black Black Black Red Red Black wire White wire Green wire b 2 pairs 4 mm Banana Alligator Red wire Red wire Red wire Red Red Red Red Red Red Black Black Black Black Black Black Black Black Black Black Black Black Red Red Red Red Red Bla...

Page 10: ...t selection for measurements performed through the bit Tune PC software 9 SPK IN LINE NOISE LED Yellow LED indicates the SPK IN input selection for measurements performed through the bit Tune PC software 10 VOLUME Volume control of the internal speaker monitor of the bit Tune 11 Ch LEFT Ch RIGHT Switch for selecting the SPK IN Left or Right input in line noise analyzer mode 12 13 14 LOAD SIMULATOR...

Page 11: ...asurement phase 4 Centre Mic 3 Yellow LED indicates the activation of the microphone during the measurement phase 5 Mic 4 Yellow LED indicates the activation of the microphone during the measurement phase 6 Mic 5 Yellow LED indicates the activation of the microphone during the measurement phase 7 XLR plug 5 pin XLR connector for connecting to the bit Tune 1 2 3 4 5 6 7 WARNING The maximum sensitiv...

Page 12: ...d phase measurement 3 XLR plug 3 pin XLR connector for connecting to the bit Tune Installation to bit Tune WARNING The maximum sensitivity is 100 dB SPL In this condition you have dynamic compression with measurement alteration Sound pressure levels over 120 dB SPL may damage the microphones Condenser microphones are extremely sensitive to moisture so you should put them back in their special carr...

Page 13: ...fuse inside the product For its replacement see section 9 5 of this manual The 110 220 VAC universal adapter comes with adapters for sockets in EUROPE UK USA ASIA to power supply PUSH TO TURN ON OR OFF 4 1 POWER SUPPLY AND SWITCHING ON WARNING If you use mains adapter for certain measurements it could be necessary to connect the ground cable supplied in the product packaging between the car batter...

Page 14: ...ERSONAL COMPUTER bit Tune bit Ten 3 PERSONAL COMPUTER bit Tune bit One 4 PERSONAL COMPUTER bit Tune bit One HD USB CABLE PROVIDED WITH bit Ten USB CABLE PROVIDED USB CABLE PROVIDED EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT ...

Page 15: ...HEN THE MICROPHONES ARE ACTIVE 7 PERSONAL COMPUTER bit Tune AP F8 9 bit 8 PERSONAL COMPUTER bit Tune H8 DSP EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MA...

Page 16: ... INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN...

Page 17: ...SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN PHONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK ...

Page 18: ...nk AC Link EMS PC ANALYZER LINE NOISE SEGNAL INPUT SELECT RIGHT 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN PHONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link HT UME ITOR 47 OHM SPK SYM NO LOAD LOAD SIMULATOR SPEAKER IN EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC ...

Page 19: ... 8 10 4 Windows XP double click on setup icon Windows Vista double click on setup icon Windows 7 double click on setup icon Windows 8 10 select the CD ROM drive an double click on setup icon Windows XP Windows Vista Windows 7 Windows 8 10 3 Windows XP with the right mouse button select the bit Tune Setup CD 2 0 icon and click Browse Windows Vista with the right mouse button select the bit Tune Set...

Page 20: ...or the installation Windows 7 select ACCEPT and wait for the installation Windows 8 10 select ACCEPT and wait for the installation 7 Windows XP select NEXT to continue with the installation CANCEL to stop it Windows Vista select NEXT to continue with the installation CANCEL to stop Windows 7 select NEXT to continue with the installation CANCEL to stop Windows 8 10 select NEXT to continue with the ...

Page 21: ... NEXT 9 Windows XP select NEXT Windows Vista select NEXT Windows 7 select NEXT Windows 8 10 select NEXT 10 Windows XP Choose NEXT to start the installation of audio codecs Windows Vista Choose NEXT to start the installation of audio codecs Windows 7 Select NEXT to start the installation of audio codecs Windows 8 10 Select NEXT to start the installation of audio codecs 5 ...

Page 22: ...hen click NEXT Windows 7 select Everyone if you have administration rights for the system so that the program once installed can be accessed by all users of the PC Just me if you want the program once installed to be accessed by the current user only Then click NEXT Windows 8 10 select Everyone if you have administration rights for the system so that the program once installed can be accessed by a...

Page 23: ... it to the USB port of your PC Windows 8 10 Select NEXT to start the installation of the audio driver turn the bit Tune on and connect it to the USB port of your PC 14 Windows XP Select NEXT to start the installation Windows Vista Select NEXT to start the installation Windows 7 Select NEXT to start the installation Windows 8 10 Select NEXT to start the installation Possible error message If the bi...

Page 24: ... 16 Windows XP select No not now and click Next Windows Vista will not ask for confirmation drivers will be installed automatically Windows 7 will not ask for confirmation drivers will be installed automatically Windows 8 10 will not ask for confirmation drivers will be installed automatically 17 Windows XP select Install the software automatically and click Next Windows Vista will not ask for con...

Page 25: ... Windows 7 will not ask for confirmation drivers will be installed automatically Windows 8 10 will not ask for confirmation drivers will be installed automatically 20 If the procedure is successful the system will notify that the driver installation is complete Windows XP click CLOSE Windows Vista click CLOSE Windows 7 click CLOSE Windows 8 10 click CLOSE 21 The installation of the bit Tune softwa...

Page 26: ...L Windows Vista click UNINSTALL Windows 7 click UNINSTALL Windows 8 10 click UNINSTALL 4 Windows XP click NEXT Windows Vista click NEXT Windows 7 click NEXT Windows 8 10 click NEXT 5 Windows XP click FINISH to complete the uninstall process Windows Vista click FINISH to complete the uninstall process Windows 7 click FINISH to complete the uninstall process Windows 8 10 click FINISH to complete the...

Page 27: ... 3 2 Start the software by clicking the icon on your desktop The first screen that appears is the starting screen where you need to select one of the following modes bit Tune Processor bit Tune connected and interfaced to a processor see sect 6 2 bit Tune see sect 6 3 Offline bit Tune not connected see sect 6 1 Rescue Mode Firmware upgrade recovery see sect 9 3 To select the starting mode go to th...

Page 28: ...t to the PC in order to become familiar with some of the product s functions How the bit Tune software looks in the OFFLINE startup mode 6 1 SOFTWARE START IN OFFLINE MODE 6 2 SOFTWARE START IN BIT TUNE PROCESSOR MODE The use of the bit Tune in this mode is primarily for refining the configuration of the frequency response of an audio system that uses an processor One bit bit Ten D bit Ten and fut...

Page 29: ... bit Tune L R Optical outputs ensuring that the processor s inputs are enabled bit One HD connect the AUX Optical 1 Optical 2 input to the bit Tune L R Optical outputs ensuring that the processor s inputs are enabled bit Ten bit Ten D connect the Aux Optical input to the bit Tune L R Optical outputs ensuring that the processor s inputs are enabled bit Nove connect the Aux Optical 1 input to the bi...

Page 30: ...coustic refinement session 4 Customer Enter the name of the owner of the car in which you are performing the measurement acoustic refinement session 5 Date Shows the date of the measurement session 6 Operator Enter the name of the operator performing the measurements 7 Note Enter comments about the measurement session or the system being measured 1 1 6 7 5 4 3 2 2 6 2 1 CONNECTION STATUS MENU 6 2 ...

Page 31: ...ating the calibration procedures Once the file is uploaded the name of the uploaded file will appear in the upper left corner 3 Save Saves the complete bit Tune configuration of the current measurement session in a file that exists or that must be replaced e g BMW E60 Walter ses which can be reloaded at a later time within the bit Tune via the Load function 4 Save as Saves the complete bit Tune co...

Page 32: ...s in real time the availability of new firmware PC Software updates Autocheck for Updates when enabled availability of firmware PC Software updates is checked automatically each time you start the program 7 Reset Default Answer This command resets the display of warning messages if they have been previously disabled by checking Don t ask me again 8 Credits Displays information about the bit Tune s...

Page 33: ...form measurements and checks of circuit parts This window also includes a series of tools such as AC DC Voltmeter Distortion meter Wattmeter Spectrum analyzer optical S PDIF Audio signal analyzer 1 2 3 4 5 6 7 8 9 4 9 10 12 23 15 14 6 7 8 11 13 5 1 2 3 16 22 18 17 24 19 20 21 Description of functions 1 2 3 Buttons for changing the full scale sensitivity of the oscilloscope Depending on the selecte...

Page 34: ...riod ms The period is the time that the signal takes to complete a cycle The period s time is measured by adding the number of divisions in a signal s cycle 12 WAVE Enables the oscilloscope function 13 SPECTRUM Enables the spectrum analyzer function 14 Snap acquisition captures the image on the screen which can be included in the measurement report see sect 6 2 4 9 To save the image enter a commen...

Page 35: ...a dissipation capacity in Watts proportionate to the amplifier s power Connect the heads of the resistances to the SPK IN inputs see sect 3 2 5 of the bit Tune 22 S PDIF Info Displays information of the optical digital signal S PDIF if an optical cable is connected to the TOS LINK connector input OPTICAL IN see sect 3 2 2 Status Sync Sync Presence of a digital signal Status Sync Absence of a digit...

Page 36: ...d signal on the screen 6 Snap acquisition Captures the picture on the screen that can be included in the measurement report see sect 6 2 4 9 To save the image enter a comment regarding the measurement see point 8 7 SCROLL VIEW After selecting PAUSE see point 5 by selecting these buttons repeatedly you can view the captured images one at a time see point 8 8 Snapshot Text Enter a comment on the acq...

Page 37: ...logarithmic by clicking on box D or linear by clicking on box E The output signal level is programmable from 48 dB to 0 dB 0 3 8 V RMS 6 Play Stop PLAY activates the signal on the outputs STOP deactivates the signal on the outputs 7 Close Closes the Generator window 8 Select channel s selects the system channel where the signal is generated 9 Processor Volume Adjusts the output level of the genera...

Page 38: ...w containing information about the selected track 8 bit Tune Volume Sets the output volume of the player with the exception of the OPTICAL OUT output 9 Bar Graph VU meter active during playback 10 Close Closes the Player window 4 PLAYER The bit Tune has an audio interface for playing back music files with extension Wav Wma Mp3 Flv Flac The active outputs of the generator are PRE OUT L R SPEAKER L ...

Page 39: ... starting measurement volume at about 26 dB 3 Close Closes the Polarity Check window Polarity Check in bit Tune mode 1 Single Speaker Checks the electrical phase of a single speaker of the system 2 Select a Speaker Select the speakers manually laying down your audio system by hand 3 Channel Map Select the speaker where to verify the electrical phase in the audio system At the end of the measuremen...

Page 40: ...oscilloscope which monitors the behavior of the vehicle s battery voltage during engine start or during the audio system operation The active inputs for this type of measurement are SPK Left SPK Left 1 4 2 3 Purpose of the measurement In audio installations some malfunction or unwanted noise on the speakers may occur especially when starting the engine When starting the engine the vehicle s batter...

Page 41: ... can be measured instrumentally through the RTA measurement Experience suggests that a degree of coloring of the response confers greater pleasantness to the listening experience Below are three other Target curves optimized for a pleasant acoustic response and which can be chosen according to personal taste Custom The Target curve can also be modeled at will to allow sound characterization accord...

Page 42: ...to your PC 4 Save Curve Saves in a file the complete configuration of a set curve e g curve srv which can be reloaded at a later time within the bit Tune with the Load Curve function 5 Delete a Curve Deletes a previously saved response curve 6 Import Curve Loads a Target Curve previously saved on the PC 7 Close Closes the window without making any change variations to the Target Curve Refer to sec...

Page 43: ...nding on the selected inputs see sect 3 3 point 6 the sensitivity values are pre set RCA inputs 1 V 10 V 100 V BNC inputs 1 V 10 V 100 V SPK IN inputs 10 V 100 V 1000 V Use buttons 1 2 3 to best display the amplitude of the signal being examined without it exceeding the full scale amplitude 4 IN Indicates the active input selected for the measurement see sect 3 3 point 6 5 LEFT Activates the measu...

Page 44: ...veforms captured using the snap acquisition function see point 12 16 Snapshot Text This box is used to enter a comment on the acquisition made with the snap function see point 12 Save the comment by selecting or delete the acquisition by selecting the button 17 BAR GRAPH AMPLITUDE Displays through a bar graph meter the signal level at the input warning about the over range of the full scale throug...

Page 45: ...une 45 9 CREATE REPORT This function automatically creates a PDF spreadsheet containing the information regarding the installer the client adjustments made through the Processor Auto Setup and any performed measurement 6 ...

Page 46: ...possible to interact with the PC software of the Audison processor Select Connect to bit Tune to connect the PC Software to the bit Tune Select Connect to Processor to connect the PC Software to an Audison bit processor 3 DISCONNECT TO This feature allows you to disconnect from the bit Tune PC Software a previously interfaced Audison processor or the bit Tune itself When the processor is DISCONNEC...

Page 47: ...equalizer can improve fuzzy sounds or rich in unwanted harmonics resulting from internal reflections in the vehicle Before the Processor auto Setup make sure that the audio system is characterized in the most appropriate manner possible MENU description 1 CHANNEL MAP This window is active and corresponds to the CHANNEL MAP of the processor connected and previously configured The window contains th...

Page 48: ...D lighting up indicates that the Level Check procedure has been performed 7 Auto EQ Auto Time Alignment The LED lighting up indicates that the Auto EQ Auto Time Alignment procedure has been performed 8 Auto Time Alignment The LED lighting up indicates that the Auto Time Alignment procedure has been performed 9 Memory Status Displays operations performed on the memories of the connected processor 1...

Page 49: ...e in order to ensure the highest level of undistorted signal This allows to avoid any background noise at the output of the processor and in general to ensure the highest undistorted level at the input of any audio device and obtain the best acoustic response Connection diagram LEFT CHANNEL RIGHT CHANNEL LEFT CHANNEL RIGHT CHANNEL SEGNAL INPUT SELECT PRE IN BNC SPK IN WHEN USE SPK IN INPUT DON T U...

Page 50: ... all tone controls to zero 0 Adjust balance and fader to the center 0 Adjust the source volume to the minimum Press OK on the PC Software to continue the configuration Press Cancel to exit the SOURCE CHECK 5 Adjust the source volume towards the maximum 90 of the maximum range a In the event of the voltmeter Bar Graph showing the message OVER in red switch the input sensitivity to the next less sen...

Page 51: ...s peak to peak 8 Measurement of the source s distortion level In the Distortion section the distortion value of the two channels will be shown automatically 9 Visualizing the source s pass band Play track 3 on the CD White noise Select the Spectrum function This will display the signal s FFT non equalized fig 1 or equalized fig 2 Note To insert the figure in the Final report save the snapshot see ...

Page 52: ...N REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link SIGNAL OUTPUTS SIGNAL INPUTS SIGNAL INPUTS AUX INPUTS Fig 1 Fig 2 AUX 1 INPUTS DIGITAL SIGNAL OUTPUTS SIGNAL OUTPUTS SIGNAL INPUTS Fig 3 AUX INPUTS SIGNAL OUTPUTS SIGNAL OUTPUTS DIGITAL SIGNAL OUTPUTS IMPORTANT In the processors you should enable the AUX input if you use a bit Ten D or AUX1 if you use a bit One through PC software Th...

Page 53: ... of inactivity can change the characteristics of the HSM microphone The calibration must performed at the time of first use and then repeated at least every 3 months of activity or after long periods of non use 1 Connect the bit Tune to the Audison bit product as shown in fig 1 or 2 The calibration procedure must be performed in an environment that is as little noisy as possible with the car s eng...

Page 54: ...n bit Tune AUX PRE IMPUTS Fig 4 LPM LPM PHONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link 20 cm 7 9 in bit Tune bit Ten D Fig 1 DIGITAL SIGNAL OUTPUTS SIGNAL INPUTS AUX INPUTS LPM LPM PHONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link 20 cm 7 9 in bit Tune bit One Fig 2 SIGNAL OUTPUTS SIGNAL OUTPUTS DIGITAL SIGNAL OUTPUTS SIGNAL INPUTS AUX 1 INPUT...

Page 55: ...allation and launch the software in bit Tune Processor mode A bit Ten Connect the AUX Left and Right inputs of the bit Ten to the Pre Out Left and Right outputs of the bit Tune and set the level of the AUX inputs to position 1 B bit One Connect the AUX1 Left and Right inputs of the bit Ten to the Pre Out Left and Right outputs of the bit Tune 7 3 1 ELECTRICAL PHASE DETECTION OF SPEAKERS IN A SYSTE...

Page 56: ...ol indicates that the speakers are not wired in phase Work on the wiring of the speakers or amplifiers bringing them back in phase with the audio system or proceed with the measurement of the phases A message indicating that the level of the measurement signal is too low In this case repeat from step 3 raising the level by 5 dB A message indicating that the level of the measurement signal is too h...

Page 57: ...microphone about 20 cm from the speaker Click Start to start the measurement Click Cancel to exit the measurement 5 At the end of the speaker s phase measurement procedure the following symbols may appear on the channel map The green symbol indicates that the speaker is wired in phase Repeat the measurement for the other speakers in your system by repeating step 4 Once the phase measurements on th...

Page 58: ... PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN LEVEL LEVEL DISCONNECT THE SPEAKER SIGNAL INPUTS AUX 1 INPUTS PRE INPUTS DON T CONNECT PRE IN CABLE INPUTS WHEN USING SPK IN INPUTS Fig 1 7 7 4 1 SETTING THE SENSITIVITY LEVEL OF AMPLIFIERS WITH AN AUDISON BIT PROCESSOR 7 4 CALIBRATION OF THE ...

Page 59: ...eakers Set the sensitivity level of the amplifiers to the minimum 5 V RMS Turn the bit Tune on and connect the USB cable to the PC Set the function switch of the bit Tune to PC ANALYZER Set the SIGNAL INPUT SELECT switch on SPEAKER IN Turn on the Audison bit processor and connect the USB cable to the bit Tune Start the bit Tune software by clicking the icon on the PC desktop created by the install...

Page 60: ...e generator s Processor Volume to 0 dB Verify that the sine wave shown on the screen is within the maximum width displayed otherwise change the scale 1 V 10 V 100 V Increase the level of sensitivity of the amplifier connected to the SPK IN inputs of the bit Tune until you see on the oscilloscope a sine wave on the edge of clipping as shown here 5 Repeat the adjustment described in section 4 on the...

Page 61: ...ONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link DIGITAL SIGNAL OUTPUTS AUX INPUTS AUX 1 INPUTS AUX INPUTS SIGNAL INPUTS SIGNAL INPUTS SIGNAL INPUTS SIGNAL OUTPUTS DIGITAL SIGNAL OUTPUTS Fig 1 Fig 2 Fig 3 IMPORTANT In the processors you should enable the AUX input if you use a bit Ten D or AUX1 if you use a bit One through PC software This can be disabled after the measure...

Page 62: ... the calibration data 7 The Level Check verification is completed If you were performing the Auto EQ Auto Time Alignment or Auto Time Alignment automatic calibration procedure continue with it see sect 7 6 7 7 1 Connect the bit Tune to the Audison bit processor as shown in fig 1 2 or 3 see points A B and C The Level Check procedure must be performed in an environment that is not noisy with the car...

Page 63: ...UT L R outputs of the bit Tune to the input of the amplifier s for which you need to adjust the input sensitivity Disconnect all speaker wires from the amplifiers Set the sensitivity level of the amplifiers to the minimum 5 V RMS Turn the bit Tune on and connect the USB cable to the PC Set the function switch of the bit Tune on PC ANALYZER Set the SIGNAL INPUT SELECT switch on SPK IN Turn on the A...

Page 64: ...the scale 1 V 10 V 100 V Increase the level of sensitivity of the amplifier connected to the SPK IN inputs of the bit Tune until you see on the oscilloscope a sine wave on the edge of clipping as shown here 5 Repeat the adjustment described in section 4 on the remaining outputs of the audio system s amplifiers 6 Set the output level control of the generator to 60 dB see point 4 Turn off the audio ...

Page 65: ... see sect 7 3 7 4 Install the HSM and LSM inside the passenger compartment of the vehicle as described in section 4 7 7 6 AUTOMATIC CALIBRATION AUTO EQ AUTO TIME ALIGNMENT PHONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link DIGITAL SIGNAL OUTPUTS AUX INPUTS AUX 1 INPUTS SIGNAL INPUTS SIGNAL INPUTS SIGNAL OUTPUTS DIGITAL SIGNAL OUTPUTS Fig 1 Fig 2 AUX INPUTS AP bit SIGNAL IN...

Page 66: ...al minutes Click Cancel to exit the measurement 7 1 Connect the bit Tune to the Audison bit processor as shown in fig 1 2 or 3 see points A B and C The AUTO EQ AUTO TIME ALIGNMENT procedure must be performed in an environment that is not noisy with the car s engine off air conditioning off doors and windows tightly closed and radio frequency devices away from the car s passenger compartment Turn t...

Page 67: ...rithm to customize the type of music The suggested choice constituting the best compromise is the Medium algorithm Select Process Data to process the entered information 7 WARNING do not confuse the Enable phase correction with the Polarity Check instrument see section 6 2 4 5 The Enable phase correction suggests the possibility to improve the acoustic response by inverting some louspeakers phase ...

Page 68: ...o Player to perform a listening test of the processed settings through the bit Tune player see sect 6 2 4 4 Pink Noise for an acoustic test of the processed settings Pink Noise Continuous for an acoustic test of the processed settings Processor Volume adjusts the listening volume of the system once the signal source is selected Finish to complete the calibration procedure Otherwise repeat step 9 S...

Page 69: ...ment of the vehicle as described in section 4 7 7 7 AUTOMATIC CALCULATION OF TIME DELAYS AUTO TIME ALIGNMENT PHONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link DIGITAL SIGNAL OUTPUTS AUX INPUTS AP bit AUX 1 INPUTS SIGNAL INPUTS SIGNAL INPUTS SIGNAL OUTPUTS DIGITAL SIGNAL OUTPUTS Fig 1 Fig 2 AUX INPUTS SIGNAL INPUTS Fig 3 IMPORTANT In the processors you should enable the AU...

Page 70: ...tings Click Start to start the measurement This may take several minutes Click Cancel to quit the measurement 7 1 Connect the bit Tune to the Audison bit processor as shown in fig 1 2 or 3 see points A B and C The AUTO TIME ALIGNMENT procedure must be performed in an environment that is not noisy with the car s engine off air conditioning off doors and windows tightly closed and radio frequency de...

Page 71: ...d previously stored values to the processor s memory 7 6 At the end of the procedure for measuring the time delays of the system you will see A window with the system s time delays measured by the bit Tune WARNING If your system has a hidden subwoofer or speaker see sect 7 6 7 enter the distance in cm inch measuring it manually Compare the measured distance with the distance detected by the bit Tu...

Page 72: ...calibration procedure Auto Eq Auto Time Alignment 7 7 8 RTA MEASUREMENT 7 8 1 RTA OF AN AUDIO SYSTEM WITH AUDISON BIT PROCESSOR PHONE REM IN REM OUT 12 V KEY SW INPUTS MUTE IN FL FR RR RL AD Link AC Link DIGITAL SIGNAL OUTPUTS AUX INPUTS AUX 1 INPUTS AP bit SIGNAL INPUTS SIGNAL INPUTS SIGNAL OUTPUTS DIGITAL SIGNAL OUTPUTS Fig 1 Fig 2 AUX INPUTS SIGNAL INPUTS Fig 3 Install the HSM inside the passen...

Page 73: ...he car s passenger compartment Turn the bit Tune on and connect the USB cable to the PC Set the function switch of the bit Tune on PC ANALYZER Turn on the Audison bit processor and connect the USB cable to the bit Tune Start the bit Tune software by clicking the icon on the PC desktop and launch the software in bit Tune Processor mode A bit Ten Connect the AUX Left and Right inputs of the bit Ten ...

Page 74: ...vels of the sliders of the processor s equalizer to change the acoustic response to suit your musical taste 7 Perform the equalizer s adjustments save the settings using the FINALIZE function from the PC Processor Software 8 It is useful to make a new RTA measurement repeating the operation from step 1 to verify the changes made after the manual acoustic refinement 7 4 Activate the system s speake...

Page 75: ...system Disconnect all speaker wires from the system s amplifier s Turn the bit Tune on and connect the USB cable to the PC Set the function switch of the bit Tune on PC ANALYZER Set the SIGNAL INPUT SELECT switch on SPK IN Turn on the Audison bit processor and connect the USB cable to the bit Tune Start the bit Tune software by clicking the icon on the PC desktop created by the installation and la...

Page 76: ...nt graph that will also appear in the final report In order to intervene on the audio system we must distinguish between these two cases A Multi amplification system Intervene on the sensitivity levels of the amplifiers or on the level of cutoff frequencies of the electronic crossovers to compensate for the excessive level differences appearing in the RTA B System with a passive crossover Interven...

Page 77: ...peration has to be performed with the car engine off with battery chargers disconnected from the car battery and with radio frequency devices away from the passenger compartment Turn on the bit Tune powering it with the power supply adapter and connect the USB cable to the PC Open the bit Tune PC software clicking on the icon on the PC Desktop selecting either the bit Tune Processor mode or the bi...

Page 78: ... measurement then start the car s engine 5 The display will show a signal similar to the one shown on the right in which A represents the battery voltage before the starting of the car B The voltage drop that the battery reaches during the ignition phase Turn off the car Disconnect the measurement terminals from the power sources 6 It is possible to monitor the different power supply points of veh...

Page 79: ...ne on and connect the USB cable to the PC Set the function switch of the bit Tune on PC ANALYZER Start the software in bit Tune mode by clicking the icon on the PC desktop EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN PRE INPUTS 4 Ohm Power dummy load DON T CONNECT PRE IN CABLE INPUTS ...

Page 80: ...ne outputs 6 Set the time base as shown in the window on the right Increase the level of Pure Tone Continuous until the oscilloscope shows a sine wave at the edge of clipping as in the graph shown below Verify that the sine wave shown on the screen is within the maximum width displayed otherwise change the scale 1 V 10 V 100 V The snapshot of the measurement can be saved to store the measurement g...

Page 81: ...stortion section will show the distortion value of the two channels 9 Power measurement Select Power Meter and on the Load table choose the value of the resistive load 1 2 4 8 ohms corresponding to the value of the load connected to the amplifier The Power Meter section will show the value of the power supplied by the amplifier according to the applied load After the measurement disable the signal...

Page 82: ... verification you will need to connect a load similar to the OEM source outputs in order to connect it to an amplifier or processor see sect 3 3 12 The bit Tune allows to perform a series of measurements without the aid of a PC in order to identify critical points in the audio system 8 USING BIT TUNE WITHOUT A PC EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK ...

Page 83: ...HI LEVEL OUTPUTS HI LEVEL OUTPUTS HI LEVEL OUTPUTS PRE IN AMPLIFIER or PROCESSOR SPK SYM The source requires an inductive load simulating the speaker s impedance One possible solution is to interpose a Connection SLI 2 4 decoupling transformer between the source and the device equipped with PRE inputs OEM SOURCE AMPLIFIER or PROCESSOR CONNECTION SLI 2 4 PRE IN 8 47 OHM The source requires a 47 Ohm...

Page 84: ...to the HI Level input of the device under test and verify its activation No need to send a signal to the bit Tune you can still generate a signal from the PC via the Player function see sect 6 2 4 4 EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN 8 8 2 SPEAKER IN SIMULATOR HI LEVEL INPUT...

Page 85: ...ER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN TRACK 1 20 RIGHT VOLUME MONITOR 47 OHM SPK SYM LEFT SPK IN MIN MAX LOAD SIMULATOR SPEAKER IN VOLUME MONITOR MIN MAX RIGHT LEFT NO LOAD RIGHT PRE OUT LEFT PRE OUT CHECK THE RIGHT CHANNEL CHECK INPUTS CONNECTIONS CHECK RCA CABLES CHECK SOURCE CHECK INPUTS CONNECTIONS CHEC...

Page 86: ...PROBE MIN MAX LOAD SIMULATOR SPEAKER IN 20 TRACK 1 RIGHT VOLUME MONITOR 47 OHM SPK SYM LEFT SPK IN MIN MAX LOAD SIMULATOR SPEAKER IN VOLUME MONITOR MIN MAX RIGHT LEFT NO LOAD CHECK THE RIGHT CHANNEL CHECK INPUTS CONNECTIONS CHECK RCA CABLES CHECK SOURCE OK OK DON T CONNECT PRE IN CABLE INPUTS WHEN USING SPK IN INPUTS 8 8 3 2 HI LEVEL ANALOG LINE ...

Page 87: ...e By connecting a PC you can analyze the type of digital signal that you are looking at see sect 6 2 4 1 The measurement of the digital signal on the output of a source allows you to verify the actual resolution according to the type of track being played For example Track resolution 96 192 kHz 24 bit 48 kHz 24 bit output In this case the source has applied a resolution downgrade to the signal red...

Page 88: ... when wiring audio cables Prefer the less disturbed areas for the installation of audio equipment amplifiers processors passive crossovers etc 12V EMS PC ANALYZER LINE NOISE POWER SEGNAL INPUT SELECT RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT PRE IN BNC SPK IN PROBE MIN MAX LOAD SIMULATOR SPEAKER IN RIGHT VOLUME MONITOR 47 OHM SPK SYM NO LOAD LEFT SPK IN MIN MAX LOAD SIMULATOR SPEAKER IN BAT...

Page 89: ...rocessor mode using the bit One a Turn off the bit Tune b Exit the software c Uninstall the bit One AC LINK drivers installed in your PC following the procedure that can be found in the bit One ADVANCED MANUAL Windows XP section 5 2 Windows Vista section 5 2 Windows 7 section 5 2 Windows 8 section 5 2 d Once the uninstallation has been completed restart the PC and re install the AC LINK 1 1 driver...

Page 90: ...sting that the BNC input fuse should be replaced or if the green LED for the BNC plug selection is blinking proceed as follows 1 Exit the bit Tune PC software 2 Turn off the bit Tune unplug the power connector and the USB plug 3 Remove the bit Tune side ends as well as the top cover 4 Remove the fuse indicated in the image below and replace it with a T500mA 250V microfuse with same value supplied ...

Page 91: ...the latest file whose name contains the word Firmware followed by four digits and click on its symbol to start the download When prompted save the file on your PC 4 Exit the browser 9 9 4 BIT TUNE and BIT TUNE Processor MODE FIRMWARE UPGRADE WARNING The procedure for updating the bit Tune firmware can be tricky It is of the utmost importance that this is done in the best possible conditions if the...

Page 92: ...sion processes on your PC Temporarily disable the Screen Saver processes on your PC Close any other open application Temporarily disable anti virus and anti spy ware software 7 Once the OK is given start the Firmware update of the bit Tune This process takes from 30 seconds to 1 minute and its correct progress will be indicated by the time bar 8 The successful update is indicated by the message wi...

Page 93: ...omatically start to search for the bit Drive Portal URL www audisonbitdrive eu 3 In order to access the download page that contains the updated versions of documentation Software and Firmware you must enter the LOGIN and PASSWORD created during product registration see sect 6 2 3 5 4 Find the latest file whose name contains the word Firmware followed by four digits and click on its symbol to start...

Page 94: ...ware softwares 7 Once the OK is given start the Firmware update of the processor This process takes from 30 seconds to 1 minute and its correct progress will be indicated by the green bar 8 The successful update is indicated by the message window 9 Turn the bit Tune off and back on 10 Repeat the HSM microphone calibration see sect 7 2 WARNING The procedure to update the bit Tune firmware can be tr...

Page 95: ... port 6 Remove the side panels and top cover of the bit Tune 7 Switch the JUMPER to ON as shown in the figure below 9 1 Access the FILE menu of the software on your PC and click Check for Updates This will open the Internet browser on your PC and it will automatically start to search for the bit Drive Portal URL www audisonbitdrive eu The screen on the right shows the version of the Boot Loader in...

Page 96: ...load area or previously saved to your PC WARNING The procedure for updating the bit Tune firmware can be tricky It is of the utmost importance that this is done in the best possible conditions if the operation should be initiated but prematurely interrupted e g locked computer power failure of the bit Tune accidental disconnection of the USB cable during the update you may need to reprogram the bi...

Page 97: ...e 13 Once the OK is given start the Firmware update of the processor This process takes from 30 seconds to 1 minute and its correct progress will be indicated by the green bar 14 The successful update is indicated by the message window 15 Disconnect the power cord and the USB cable from the bit Tune 16 Replace the JUMPER internal to the PCB as shown in the figure 17 Assemble the top cover and side...

Page 98: ...th a T2A Cylindrical fuse inside the product For its replacement proceed as follows 1 Remove the side panels and cover of the bit Tune 2 Remove the fuse and replace it with one with the same T2A 250 V value 9 9 7 REPLACEMENT OF THE INTERNAL POWER SUPPLY FUSE 2A 250V ...

Page 99: ... x Analog Pre Out 4 V RMS 2 x Hi Level Out 5 5 V RMS 1 x Optical digital Out S PDIF Max 192 kHz 24bit PCM FUNCTION AVAILABLE WITH PC Processor Auto Setup Source Check RTA Polarity Check Oscilloscope Power Meter Distortion Meter Generator Player Battery Test Optical Cable Test FUNCTION AVAILABLE WITHOUT PC Load Simulator Speaker In Hi Level AER Test Source Line Analyzer Electromagnetic Sniffing Tes...

Page 100: ...All specifications subject to change without notice PART OF ELETTROMEDIA 62018 Potenza Picena MC Italy T 39 0733 870 870 F 39 0733 870 880 www elettromedia it ...

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