CTP Systems dBbox3 Manual Download | Manualshive

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dBbox3

the manual

version 4 firmware

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Summary of Contents for dBbox3

Page 1: ...1 dBbox3 the manual version 4 firmware ...

Page 2: ...witch off system The accuracy of the test timecode generator has been improved and the cable tester now also tests the XLR earth wire Improvements have been made to the MIDI circuitry and we have added a LED torch We have increased the loudspeaker volume and other improvements have been made for more flexibility with future firmware updates Some general information The battery symbol on the top ri...

Page 3: ...ght Input Press the key to move the highlighter to the right of Input Press the up down keys to scroll through the possibilities Analogue AES BNC AES XLR SPDIF BNC Off When Analogue is highlighted press either the key or press Select The highlight will now move back to Input Press select You are now in the analogue input menu Press the down key to highlight Gain Press the key and the 0dB gain sett...

Page 4: ...oring and analyzing All digital inputs are essentially the same apart from the connector in use voltage levels and impedance They all use the same display page so will all be described together Input metering may be 18dBFS 20dBFS PPM or VU and includes a stereo phase meter The unit will auto switch sample rates in the range 32kHz to 96kHz Input AES BNC Input AES XLR Input SPDIF BNC The examples wi...

Page 5: ...yed values are 32kHz 44 1kHz 48kHz 64kHz 88 2kHz 96kHz 176 4kHz and 192kHz Any other sample rates will be displayed as Audio bits Possible readable values 16 bit 20 bit 24 bit Emphasis On or off Generation Original or Copy Copyright Yes or No Format Possible data types PCM IEC61937 DTS_LD DTS_CD Only while reading channel status some sample rates may sound distorted through the loudspeaker or head...

Page 6: ... white noise Frame Rate This item will only show if digital output is selected Set to 48kHz or 96kHz as required These examples will use AES BNC Output AES BNC Tone Type Various types of tone output are available Steady Continuous tone both channels GLITS Graham s Line Ident Tone System Used extensively for Stereo line identification by the BBC amongst others EBU Cyclic break on the left channel s...

Page 7: ...phone Output AES BNC Int micGain Sets the internal mic gain or effectively the level on the outputs Available settings 12dB 6dB 0dB 6dB 12dB Output AES BNC Int micLimiter Sets the threshold of the limiter on the outputs Possible settings 12dB 6dB 0dB 6dB 12dB Output AES BNC Int micOutput Select to left right or both outputs Output AES BNC Noise Gen Generates pink or white noise with a frequency ra...

Page 8: ...ct as a four wire box using the internal microphone and speaker or headphones Listen to incoming audio and adjust the volume using Vol and Vol Up If the speaker is in use it will cut on talk to prevent feedback the headphones will not Press the down arrow to speak on the internal mic The microphone passes through a limiter the threshold of this limiter is set by Output Analogue Int micLimiter Sign...

Page 9: ...In Out FX HF High frequency equalization Range 12dB to 12dB in 1 dB steps In Out FX Mid Middle frequency equalization Range 12dB to 12dB in 1 dB steps Centered around 1kHz In Out FX Low Low frequency equalization Range 12dB to 12dB in 1 dB steps MIDI The MIDI menu is broken down into two selections MIDI analyse and MIDI notes MIDI Analyse This is used to analyse incoming MIDI data and will display...

Page 10: ...they may be used at the same time MIDI Notes Channel Selects the MIDI channel to transmit the note on Range 1 16 MIDI Notes Note Selects the MIDI note number to be transmitted Range 0 127 MIDI Notes Veloc Selects the velocity of the transmitted MIDI note Range 0 127 MIDI Notes Send On Highlight this and press select to transmit your MIDI note with note on information MIDI Notes Send Off Highlight ...

Page 11: ...VU More Read Timecode Freeze Press select while this is highlighted to freeze the timecode display When selected it will change to read Select again to restart the display More Read Timecode nnFPS This selects the frame rate range for the reader Set to 25FPS for 24 or 25FPS or 30FPS for 29 97 dropframe or 30FPS More Generate Timecode This generates test linear timecode at 24 25 29 97 dropframe and...

Page 12: ...ables output tone output and audio input at the same time Input and output signals may be selected to analogue or AES formats with adjustable input and output gain and adjustable frequency This is useful for testing operation of external equipment checking frequency response etc Analogue signals are output on the left channel output XLR and input on the left channel input XLR AES signals are outpu...

Page 13: ...DI connections DIN pins 4 and 5 The clicking noise heard when using this function is a relay disconnecting the XLR earth in order to test it More More select even more More More Delay This provides a delay of up to 80mS in mono or 40mS in stereo If AES is used please note this feature will only function correctly at 48kHz More More Delay Input Select analogue AES BNC AES XLR or SPDIF BNC input s M...

Page 14: ...lect SPDIF input to PPM VU 18dBFS or 20dBFS Metering More Setup Contrast Adjust the contrast of the display Range 0 lowest to 9 highest More Setup Headphones Set the headphone output to mono or stereo More Setup More Setup More More Setup MoreSetup PPM top scale Select top scale of PPM to UK dB or EBU More More Setup MoreSetup Spkr ana limit Switches the speaker limiter on and off Select to off fo...

Page 15: ... this cannot be undone Press any key Read again then press any key You are now presented with a choice of Exit No setup back to the normal menu Disable Disable the personalise facility Start Start the personalization process Use the left right keys to select as required then press Select If you select disable you will be presented with You have selected to delete this facility Are you sure Using t...

Page 16: ...e To switch it back on select the power switch to off wait half a second and then switch it on again When the timer is counting down it will be restarted whenever a button is pressed on the unit so for example if it is set to 30 minutes and after 15 minutes a button is pressed then the timer will set back to 30 minutes LED Torch Press Select and the Up button for one second to switch the LED light...

Page 17: ... which includes a slightly higher output impedance in order to overcome these possibilities hence the variation If you have any firmware problems with your dBbox3 or you spot any incorrect details in our manual please let us know so we can correct Thank you Specifications Analogue and AES SPDIF combined Input metering accurate to within 0 2dB or one display segment Ref 0dBu 125Hz 20kHz accurate to...

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