LEctenna Full Melody with Sound<\/title>\n <style>\n body {\n display: flex;\n flex-direction: column;\n align-items: center;\n height: 100vh;\n margin: 0;\n background-color: black;\n color: white;\n font-family: Arial, sans-serif;\n }\n\n h1, p {\n text-align: center;\n }\n\n #statusMessage {\n margin-top: 20px;\n text-align: center;\n font-size: 18px;\n color: #00ff00;\n }\n\n #playButton {\n margin-top: 20px;\n padding: 10px 20px;\n background-color: #008CBA;\n color: white;\n border: none;\n border-radius: 5px;\n cursor: pointer;\n font-size: 16px;\n }\n\n #playButton:hover {\n background-color: #005f6a;\n }\n <\/style>\n<\/head>\n<body>\n <div>\n <h1>LEctenna Full Melody with Sound<\/h1>\n <p>Click the button to play the melody through the speaker and via LEctenna.<\/p>\n <p id=\"statusMessage\">Status: Preparing…<\/p>\n <button id=\"playButton\">Play Melody<\/button>\n <\/div>\n\n <script>\n const TARGET_URL = \"https:\/\/httpbin.org\/post\"; \/\/ Dummy endpoint for testing\n const statusMessage = document.getElementById(\"statusMessage\");\n const playButton = document.getElementById(\"playButton\");\n\n \/\/ Define the melody (frequency in Hz and duration in milliseconds)\n const melody = [\n { frequency: 392, duration: 800 }, \/\/ G4\n { frequency: 440, duration: 800 }, \/\/ A4\n { frequency: 494, duration: 800 }, \/\/ B4\n { frequency: 523, duration: 800 }, \/\/ C5\n { frequency: 494, duration: 800 }, \/\/ B4\n { frequency: 440, duration: 800 }, \/\/ A4\n { frequency: 392, duration: 800 }, \/\/ G4\n { frequency: 349, duration: 1200 }, \/\/ F4\n ];\n\n \/\/ Generate a sinusoidal data block for a specific frequency and size\n function generateSineWaveData(frequency, sizeInBytes) {\n const data = new Uint8Array(sizeInBytes);\n const sampleRate = 44100; \/\/ Standard audio sample rate (44.1 kHz)\n const samplesPerCycle = Math.floor(sampleRate \/ frequency);\n\n for (let i = 0; i < sizeInBytes; i++) {\n \/\/ Generate a smooth sinusoidal wave\n const angle = (2 * Math.PI * (i % samplesPerCycle)) \/ samplesPerCycle;\n data[i] = Math.round(128 + 127 * Math.sin(angle)); \/\/ Map sine value to 0-255\n }\n\n return data;\n }\n\n \/\/ Send sinusoidal data continuously for a given note via LEctenna\n async function playNoteViaLEctenna(frequency, duration) {\n const dataBlockSize = 256 * 1024; \/\/ Smaller block size for continuous transmission\n const dataBlock = generateSineWaveData(frequency, dataBlockSize);\n const endTime = performance.now() + duration;\n\n while (performance.now() < endTime) {\n try {\n await fetch(TARGET_URL, {\n method: \"POST\",\n body: dataBlock,\n headers: {\n \"Content-Type\": \"application\/octet-stream\",\n },\n });\n } catch (error) {\n console.error(\"Error during transmission:\", error);\n statusMessage.textContent = \"Status: Error. Retrying...\";\n }\n }\n }\n\n \/\/ Play the melody through the Web Audio API\n function playMelodyViaSound() {\n const audioContext = new (window.AudioContext || window.webkitAudioContext)();\n let currentTime = audioContext.currentTime;\n\n melody.forEach(note => {\n const oscillator = audioContext.createOscillator();\n oscillator.type = \"sine\"; \/\/ Sine wave for a smooth sound\n oscillator.frequency.setValueAtTime(note.frequency, currentTime);\n oscillator.connect(audioContext.destination);\n oscillator.start(currentTime);\n oscillator.stop(currentTime + note.duration \/ 1000);\n\n currentTime += note.duration \/ 1000; \/\/ Update current time for next note\n });\n }\n\n \/\/ Function to play the melody via both Web Audio API and LEctenna\n async function playFullMelody() {\n \/\/ Start playing via speakers (Web Audio API)\n playMelodyViaSound();\n\n \/\/ Send the melody to LEctenna for data transmission\n for (const note of melody) {\n statusMessage.textContent = `Playing ${note.frequency} Hz for ${note.duration} ms via LEctenna`;\n await playNoteViaLEctenna(note.frequency, note.duration);\n }\n\n statusMessage.textContent = \"Melody finished. Restarting...\";\n }\n\n \/\/ Play the melody when the button is clicked\n playButton.addEventListener(\"click\", () => {\n playFullMelody();\n });\n <\/script>\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>LEctenna Full Melody with Sound LEctenna Full Melody with Sound Click the button to play the melody through the speaker and via LEctenna. Status: Preparing… Play Melody<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-362","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t<meta name=\"description\" content=\"LEctenna Full Melody with Sound LEctenna Full Melody with Sound Click the button to play the melody through the speaker and via LEctenna. Status: Preparing... 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{"id":362,"date":"2024-12-31T03:46:16","date_gmt":"2024-12-31T03:46:16","guid":{"rendered":"https:\/\/lectenna.com\/?page_id=362"},"modified":"2024-12-31T04:15:37","modified_gmt":"2024-12-31T04:15:37","slug":"audio-over-aux","status":"publish","type":"page","link":"https:\/\/lectenna.com\/index.php\/audio-over-aux\/","title":{"rendered":"Audio over AUX"},"content":{"rendered":"\n\n\n\n \n \n LEctenna Full Melody with Sound<\/title>\n <style>\n body {\n display: flex;\n flex-direction: column;\n align-items: center;\n height: 100vh;\n margin: 0;\n background-color: black;\n color: white;\n font-family: Arial, sans-serif;\n }\n\n h1, p {\n text-align: center;\n }\n\n #statusMessage {\n margin-top: 20px;\n text-align: center;\n font-size: 18px;\n color: #00ff00;\n }\n\n #playButton {\n margin-top: 20px;\n padding: 10px 20px;\n background-color: #008CBA;\n color: white;\n border: none;\n border-radius: 5px;\n cursor: pointer;\n font-size: 16px;\n }\n\n #playButton:hover {\n background-color: #005f6a;\n }\n <\/style>\n<\/head>\n<body>\n <div>\n <h1>LEctenna Full Melody with Sound<\/h1>\n <p>Click the button to play the melody through the speaker and via LEctenna.<\/p>\n <p id=\"statusMessage\">Status: Preparing…<\/p>\n <button id=\"playButton\">Play Melody<\/button>\n <\/div>\n\n <script>\n const TARGET_URL = \"https:\/\/httpbin.org\/post\"; \/\/ Dummy endpoint for testing\n const statusMessage = document.getElementById(\"statusMessage\");\n const playButton = document.getElementById(\"playButton\");\n\n \/\/ Define the melody (frequency in Hz and duration in milliseconds)\n const melody = [\n { frequency: 392, duration: 800 }, \/\/ G4\n { frequency: 440, duration: 800 }, \/\/ A4\n { frequency: 494, duration: 800 }, \/\/ B4\n { frequency: 523, duration: 800 }, \/\/ C5\n { frequency: 494, duration: 800 }, \/\/ B4\n { frequency: 440, duration: 800 }, \/\/ A4\n { frequency: 392, duration: 800 }, \/\/ G4\n { frequency: 349, duration: 1200 }, \/\/ F4\n ];\n\n \/\/ Generate a sinusoidal data block for a specific frequency and size\n function generateSineWaveData(frequency, sizeInBytes) {\n const data = new Uint8Array(sizeInBytes);\n const sampleRate = 44100; \/\/ Standard audio sample rate (44.1 kHz)\n const samplesPerCycle = Math.floor(sampleRate \/ frequency);\n\n for (let i = 0; i < sizeInBytes; i++) {\n \/\/ Generate a smooth sinusoidal wave\n const angle = (2 * Math.PI * (i % samplesPerCycle)) \/ samplesPerCycle;\n data[i] = Math.round(128 + 127 * Math.sin(angle)); \/\/ Map sine value to 0-255\n }\n\n return data;\n }\n\n \/\/ Send sinusoidal data continuously for a given note via LEctenna\n async function playNoteViaLEctenna(frequency, duration) {\n const dataBlockSize = 256 * 1024; \/\/ Smaller block size for continuous transmission\n const dataBlock = generateSineWaveData(frequency, dataBlockSize);\n const endTime = performance.now() + duration;\n\n while (performance.now() < endTime) {\n try {\n await fetch(TARGET_URL, {\n method: \"POST\",\n body: dataBlock,\n headers: {\n \"Content-Type\": \"application\/octet-stream\",\n },\n });\n } catch (error) {\n console.error(\"Error during transmission:\", error);\n statusMessage.textContent = \"Status: Error. Retrying...\";\n }\n }\n }\n\n \/\/ Play the melody through the Web Audio API\n function playMelodyViaSound() {\n const audioContext = new (window.AudioContext || window.webkitAudioContext)();\n let currentTime = audioContext.currentTime;\n\n melody.forEach(note => {\n const oscillator = audioContext.createOscillator();\n oscillator.type = \"sine\"; \/\/ Sine wave for a smooth sound\n oscillator.frequency.setValueAtTime(note.frequency, currentTime);\n oscillator.connect(audioContext.destination);\n oscillator.start(currentTime);\n oscillator.stop(currentTime + note.duration \/ 1000);\n\n currentTime += note.duration \/ 1000; \/\/ Update current time for next note\n });\n }\n\n \/\/ Function to play the melody via both Web Audio API and LEctenna\n async function playFullMelody() {\n \/\/ Start playing via speakers (Web Audio API)\n playMelodyViaSound();\n\n \/\/ Send the melody to LEctenna for data transmission\n for (const note of melody) {\n statusMessage.textContent = `Playing ${note.frequency} Hz for ${note.duration} ms via LEctenna`;\n await playNoteViaLEctenna(note.frequency, note.duration);\n }\n\n statusMessage.textContent = \"Melody finished. 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