lili/data-over-audio
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show list of channels

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This commit is contained in:
Lewis Moten
2024-05-03 23:56:59 -04:00
parent 348ea8df7c
commit 8059de37b2
3 changed files with 27 additions and 4 deletions
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4
index.html
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@@ -89,6 +89,10 @@
Effective Baud: <span id="effective-speed-bits-per-second">N/A</span><br>
Effective Bytes/s: <span id="effective-speed-bytes-per-second">N/A</span><br />
</div>
<div>
<h2>Channels</h2>
<ol id="channel-list" start="0"></ol>
</div>
</div>
</body>

17
index.js
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@@ -160,7 +160,8 @@ function updateFrequencyResolution() {
function showSpeed() {
const segmentsPerSecond = 1000 / FREQUENCY_DURATION;
const bitsPerSegment = getChannels().length;
const channels = getChannels();
const bitsPerSegment = channels.length;
const baud = bitsPerSegment * segmentsPerSecond;
const bytes = baud / 8;
document.getElementById('durations-per-second').innerText = segmentsPerSecond.toFixed(2);
@@ -178,6 +179,14 @@ function showSpeed() {
document.getElementById('effective-speed-bits-per-second').innerText = effectiveBaud.toFixed(2);
document.getElementById('effective-speed-bytes-per-second').innerText = effectiveBytes.toFixed(2);
}
const channelList = document.getElementById('channel-list');
channelList.innerHTML = "";
channels.forEach(([low, high]) => {
const li = document.createElement('li');
li.textContent = `Low: ${low} Hz High: ${high} Hz`;
channelList.appendChild(li);
})
handleTextToSendInput();
}
function nibbleToHamming(nibble) {
@@ -221,9 +230,9 @@ function getChannels() {
const frequencyResolution = sampleRate / fftSize;
const channels = [];
const pairStep = frequencyResolution * 2 * FREQUENCY_RESOLUTION_MULTIPLIER;
for(let hz = MINIMUM_FREQUENCY; hz < MAXIMUM_FREQUENCY; hz+= pairStep * 2) {
const low = hz;
const high = hz + frequencyResolution * FREQUENCY_RESOLUTION_MULTIPLIER;
for(let hz = MINIMUM_FREQUENCY; hz < MAXIMUM_FREQUENCY; hz+= pairStep) {
const low = Math.floor(hz);
const high = Math.floor(hz + frequencyResolution * FREQUENCY_RESOLUTION_MULTIPLIER);
if(low < MINIMUM_FREQUENCY) continue;
if(high > MAXIMUM_FREQUENCY) continue;
channels.push([low, high]);

10
style.css
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@@ -37,4 +37,14 @@ textarea, .raw-data {
}
.bit-unexpected {
color: green;
}
ol {
overflow: auto;
height: 75px;
background-color: rgb(41, 59, 10);
color: rgb(75, 185, 75);
border: 1px solid grey;
font-size: x-small;
font-family: monospace;
width: 250px;
}