Articles
Listening to the needs of audio engineers
Alan Wheable Monitoring SDI video content within an installation is and has always been straight forwards. If you have a monitor, and you can see the image correctly, all is well. This is not necessarily the case for metadata and especially not for audio.
Tags: iss131 | omnitek | audio monitoring | aes | ebu | smpte 2110 | st2110 | smpte 352 | dolby | Alan Wheable
Submitted by Alan Wheable Click to read or download PDF
Technological advances in the broadcast industry
Alan Wheable Since it is Omnitek’s 20th anniversary this year, I thought it would be interesting to look back over the technological advances in the broadcast industry over the last few decades and look at the similarities between then and now.
Tags: iss130 | omnitek | test and measurement | smpte 2110 | untra tq | 2022 | sdi 2022-6 | Alan Wheable
Submitted by Alan Wheable Click to read or download PDF
Supporting broadcast quality control
Alan Wheable With the ever-increasing number of program channels and range of different program distribution formats, the process of ensuring program quality has become a complex one for contribution/capture, production, post production, server ingest and content distribution.
Tags: iss128 | omnitek | wcg | hdr | test and measurement | smpte 2110 | smpte 2022-6 | Alan Wheable
Submitted by Alan Wheable Click to read or download PDF
Peace of mind in a complicated world
Alan Wheable For many in the broadcast industry these are challenging times. With competition coming from all angles and different technological camps advocating different approaches to infrastructure and the way forwards. With the number of different variables increasing, the choices of whether to use SDI or IP infrastructures, and the choices around HDR and WCG let alone the on-going distraction of UHD / 4K.
Tags: iss127 | omnitek | smpte 2110 | ip | ultra tq | 2022-6 | Alan Wheable
Submitted by Alan Wheable Click to read or download PDF
The importance of a low noise floor
Alan Wheable The Noise Floor of a piece of T&M equipment is the inherent noise (or intrinsic jitter) introduced by the equipment itself. The level of inherent noise affects the accuracy and repeatability of jitter measurements that can be made, especially when measuring low levels of jitter. With the permitted 100KHz jitter on a 12G-SDI signal being only 0.3UI, it is important to establish the total level of jitter in the signal path to ensure that it does not exceed this limit and cause data errors.
Tags: iss119 | omnitek | test and measurement | intrinsic jitter | Alan Wheable
Submitted by Alan Wheable Click to read or download PDF
Staying within a recognisable landscape
Alan Wheable 2015 saw the maturing development of UHDTV 4K signal technologies and a growing agreement that both SDI and IP will exist in their respective strong application areas, as a solid engineering solution to the differing requirements of live signal handling and programme contribution.
Tags: iss110 | omnitek | uhdtv | 4k | 12g-sdi | eyepattern | Alan Wheable
Submitted by Alan Wheable Click to read or download PDF
Monitoring Image and Signal Degradation
Mike Hodson OmniTeks latest waveform analysis software focussed on assessing the degradation in video and audio quality and timing suffered by images as they are transmitted or stored. What approach has OmniTek taken to measuring these effects?
Tags: iss079 | omnitek | monitoring image and signal degradation | signal | quality | how to | guide | mike hodson | founder and president | metrics | delay | lip sync | Mike Hodson
Submitted by Mike Hodson Click to read or download PDF
Whats new in broadcast test and measurement
N/A The test and measurement product category continues to expand as the broadcast business itself diversifies. Notable recent developments include higher resolution displays and a gradually increasing number of analysers which, having detected a fault, endeavour to fix it. No sign at NAB 2011 of any tablet-based test and measurement equipment but perhaps that is only a matter of time.....
Tags: iss054 | eye to eye | test and measurement | agama | cel-soft | dk technologies | dolby | hamlet | leader | murraypro | omnitek | phabrix | pixelmetrix | rohde schwarz | tektronix | vidcheck | N/A
Submitted by N/A Click to read or download PDF
Ask the experts. Eye & Jitter
N/A Why should TV broadcast engineers be interested in adding Eye and Jitter measurement to their T & M facilities?
Tags: eye pattern | eye and jitter pattern | iss032 | omnitek | test and measurment | eye diagram | oscilloscope | waveform | tv studio | N/A
Submitted by N/A Click to read or download PDF
Eye to Eye. Whats new in test and measurement 2009
N/A The transition from analogue to digital programme production, storage and delivery lulled some innocent folk into anticipating a world without need for test equipment. If required at all, so the thinking went, all signal analysis would be performed in software. Maybe someday. For now, the T&M sector remains alive and well.
Tags: test and measurement | iss028 | dk-technologies | ev | electronic visuals | hamlet | harris | leader | omnitek | phabrix | rhode and schwarz | tektronix | N/A
Submitted by N/A Click to read or download PDF
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