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KRAMER:  SIMPLE CREATIVE TECHNOLOGY

 

Overview 

 

3  Overview 

The Kramer 

VA-256P

 is a professional digital audio delay that can be used as 

an AES-ID3 (75 ) to AES/EBU (110 ) converter, as a digital audio 

switcher, and as an audio delay line.  
The high-performance 

VA-256P

Lets you adjust for lip sync errors so that the audio delay will match the 

video delay

1

 

Lets you adjust the brightness of the display via the dimmer setting 
Automatically sets the maximum delay time according to the input sample 

rate (for each input channel) 
Recalls the previously set display brightness level and input settings

2

 via 

its non-volatile memory after powering up 
Provides a delay time, ranging from 0 up to 4096 msec

3

 in increments of 

1msec 
Is EIAJ CP1201, IEC-60958, AES3, AES-ID3 and AES/EBU compatible, 

and supports 32kHz to 96kHz sample frequency range 
Is fully transparent to the digital stream, making it ideal for the most 

demanding audio applications including home cinema and professional 

audio applications (such as PCM, Dolby Digital, DTS, AES and so on) 
Is 12VDC fed and is housed in a DigiTOOLS enclosure 

To achieve the best performance: 

Connect only good quality connection cables, thus avoiding interference, 

deterioration in signal quality due to poor matching, and elevated noise- 

levels (often associated with low quality cables) 
Avoid interference from neighboring electrical appliances and position your 

Kramer 

VA-256P

 away from moisture, excessive sunlight and dust 

In applications with high interference, shielded cable will give better results. 

4  Your VA-256P Digital Audio Delay 

Figure 1 and Table 1 define the 

VA-256P

 

Digital Audio Delay

                                                       

 

1 An example of a TV broadcasting lip sync error is when the sound is heard before the speaker’s lips move 
2 Input sampling rate and delay time for each channel 
3 Depending on the input sample rate signal (see Table 2) 

Summary of Contents for VA-256P

Page 1: ...Kramer Electronics Ltd USER MANUAL Model VA 256P Digital Audio Delay...

Page 2: ...ng the Delay Time 7 5 4 Setting the Display Brightness Dimmer Setting Level 7 6 Technical Specifications 8 Figures Figure 1 VA 256P Digital Audio Delay 3 Figure 2 Connecting the VA 256P Digital Audio...

Page 3: ...the user manual Caution No operator serviceable parts inside unit Warning Use only the Kramer Electronics input power wall adapter that is provided with this unit1 Warning Disconnect power and unplug...

Page 4: ...Delay Power adapter 12V DC Input This user manual2 2 Getting Started We recommend that you Unpack the equipment carefully and save the original box and packaging materials for possible future shipment...

Page 5: ...range Is fully transparent to the digital stream making it ideal for the most demanding audio applications including home cinema and professional audio applications such as PCM Dolby Digital DTS AES...

Page 6: ...he digital audio acceptor 110 6 INPUT SELECTOR 1 Button Press to select the AES ID3 input to route to the outputs 7 INPUT SELECTOR 2 Button Press to select the AES EBU input to route to the outputs 8...

Page 7: ...S EBU detachable terminal block IN connector using a twisted pair cable 2 Connect the acceptors as follows Connect the AES ID3 75 OUTPUT BNC connector to a digital audio acceptor for example a studio...

Page 8: ...Using the VA 256P Digital Audio Delay 5 Digital Video Player To Video Processor Digital Audio Signal DAT Player Studio Mixer DAT Recorder Figure 2 Connecting the VA 256P Digital Audio Delay...

Page 9: ...l video signal processing time So while the video signal is processed the audio signal is delayed via the VA 256P to maintain synchronization between video and audio as both signals enter the studio m...

Page 10: ...the dimmer settings to modify the brightness of the two input buttons and the display To set the brightness dimmer setting level do the following 1 Press both the and buttons continuously for 3 secon...

Page 11: ...es AUDIO SIGNAL COMPATIBILITY Digital Audio S PDIF All current broadcast DVD standards including Dolby Digital EX DTS ES and PCM Audio sample rates of 32kHz 44 1kHz 48kHz standard DVD and 96kHz DTS 96...

Page 12: ...iginal dated invoice or a copy must be presented as proof of warranty coverage and should be included in any shipment of the product Please also include in any mailing a contact name company address a...

Page 13: ...or the latest information on our products and a list of Kramer distributors visit our Web site www kramerelectronics com where updates to this user manual may be found We welcome your questions commen...

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