Audio Key Chart

[Ilse Marseau]

Thischart provides audio examples for phonetic vowel symbols. The symbols shown include those in the International Phonetic Alphabet (IPA) and added material. The chart is based on the official IPA vowel chart.[1]

The International Phonetic Alphabet is an alphabetic system of phonetic notation based primarily on the Latin alphabet. It was devised by the International Phonetic Association as a standardized representation of the sounds of spoken language.[2]

Would it be worth me cutting the whip using the chart to something in the middle of the range? Or is the chart just plain wrong? Or does it just not work like that. I think it's unlikely Audioroot would be wrong.

how you measure the existing antenna - whether you are supposed to add the entire length including the SMA or not. check on this and report back. most probably this is what is affecting your judgement.

FWIW, I think you'll find that the steps above yield the same numerical results the Zaxcom chart specifies if you plug in the median frequency of the particular block. Since, with wideband units, you no longer need to follow the block convention of ye old past, you can use this simple procedure to compute the median of the range in which you choose to operate, without consideration of the legacy blocks.

Here's a photo of my original whip which is for the 566 to 798 range. As you can see it correlates with the dotted line...whatever that means...... maybe I should just cut the new one the same as this?

I just don't get why the dotted line correlates with 850MHz on the chart? The original is labelled 670 (MHz?), which sits nicely in the middle of the range.... so is the chart wrong? Or maybe it's got a correction in the receiver or something?

John. Thanks for that according to your frequency calculator 670MHz should equate to 11 cm. The Wisy one is 9cm, which makes me think maybe the MCR42 receiver has some 2cm of correction in it. I've emailed Wisy. Will report what they say, as obviously this is good for everyone to know.

I love how you've made up a new thing to make your whips the right length 'correction on the internal electronics'! Maybe it's the antennae length on the receiver isn't as critical as on the transmitter, so no one has yet needed to invent 'correction' You can bet it'll be on the feature list for the upcoming Zax release though.

Just meant that the length of a 670MHz whip based on the formula is not the same length as the '670' whip Wisycom has made. Just wondering why? Any ideas? What I meant by correction is that maybe the electronics change the resonant frequency slightly....

They said that they cut and test their antenna for a centre frequency of 682MHz 'considering the bandwidth and housing of the device and that there are two antennas' i.e. in their testing the housing of the MCR42 ads some 'virtual length' to the aerial.

So I guess as I suspected there is an effect of the case and internal electronics on the resonant frequency. I'm going to cut them the same length as the originals. This seems like the best thing to do. Replace like with like. Although Wisy have said to follow the manufacturers instructions...... but I'm guessing the manufacturer's instructions don't take this 'virtual length' into account....

Besides the SWR (Standing Wave Ratio), there are many other factors involved such as line of sight, signal impediments, multipath dispersion, antenna orientation, power transfer function, atmospheric conditions, stray RF signals, and on and on.

Under typical practical conditions, antenna length has less affect than some might imagine, and optimizing one aspect of a system may be of little consequence, however the effect of optimizing each working part of one's kit can offer a worthwhile cumulative improvement.

I have the miracle whip antenna for my SR. Cutting them to the size specified by the included chart yielded awful results. Cutting them to match the length of my right-angled Lectro aerials was transformative. In fact they perform much better than the right-angled ones!

The length DOES matter IMO.

James, yes that's what I thought. I ignored Wisys advice and went with the length they used for their ones. Seems to work fine, although I haven't tested them to their limit. The good thing about the Audioroot jointed ones is that I can lay them flat in my bag when I'm not using them. It saves me having to unscrew the aerials every time I put my kit in it's case.

It also means you can angle the two whips slightly differently thus getting better diversity. I did think of leaving an extra cm on one of the whips just to give better receptions when I'm using lower frequencies. Wisy have cut theirs for 680MHzish and I'm generally using around 600MHz.

Highcharts supports audio charts through the sonification module. This tutorial will take you through configuring the module, and go through some key functionality to get you started building audio charts.

In data visualization, sonification enables exploring the data without visual aid. It helps people understand the data by using their sense of hearing instead of sight. This can be especially helpful for people with visual disabilities or for situations where visually interpreting the data is difficult, but it can also be used to build more engaging data visualization experiences in general, or to notify users that their attention is needed.

There can be strong accessibility benefits to providing sonification with large datasets, as many blind or low vision users find sonification helpful for getting an overview of the data, as well as identifying trends, patterns, outliers, and points of interest.

In Highcharts, we provide a sonification module to allow you full control of playing your data using sound. The sonification module supports a wide range of different use cases, and is designed with flexibility in mind.

Requires the sonification.js module. This adds the functions Chart.sonify, Chart.toggleSonify, Series.sonify, and Point.sonify, as well as several helper classes, methods, and various functionality for controlling the playback of the chart.

The sonification module uses the concept of "Tracks". Each track is a layer of sound, and represents a sequence of sounds played by a single instrument or voice. The demo in the previous section uses two main tracks:

Context tracks are tracks that are not tied to a data series, but play at fixed intervals to provide background context. They are often used to indicate specific values such as maximum, minimum, or zero thresholds. They are also often used or provide rhythm and a sense of time, for example by playing a percussive sound on each X axis tick mark.

The word pīnyīn (拼音) in Chinese literally means "spell-sounds". It's the most commonly used system for transcribing or or spelling out the Chinese sounds, and it uses the letters in the Latin alphabet that you are already familiar with.

Pinyin is an extremely useful tool and should be the foundation of your Chinese learning. Plus, it's not just for Chinese learners like yourself. Actually, all native Chinese speakers know pinyin - it's the first thing Chinese children learn at school before learning characters. So even if you don't know Chinese characters, you can type in pinyin and Chinese people will understand.

Every single sound that exists in Chinese can be displayed easily in a pinyin chart like the one above. Once you master these 409 sounds along with the tones, you'll have practically mastered the pronunciation of every single word in the Chinese language. And even better, if you know English you should already know how to correctly pronounce over half of those sounds without any coaching! As for the rest, that's what we're here for! We've built this interactive pinyin chart (above) with demonstrations for how to correctly pronounce every possible sound in the Chinese language. We've also created a series of video lessons (below) with practice tools that enable you to record yourself and listen back to it to ensure your pronunciation matches the examples. Combined with our Tone Pairs practice tool, you now have everything you need to master pinyin, tones, and Chinese pronunciation.

Good news: if you know English you should already know how to correctly pronounce over half of those sounds without any coaching! As for the rest, that's what we're here for. We've built this interactive pinyin chart (above) with demonstrations for how to correctly pronounce every possible sound in the Chinese language. We've also created a series of video lessons (below) with practice tools that enable you to record yourself and listen back to it to ensure your pronunciation matches the examples. Combined with our Tone Pairs practice tool, you now have everything you need to master pinyin and Chinese pronunciation.

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