AI 产品解读Detects the musical pitch (note name and frequency in Hz) of audio played in YouTube videos in real-time
Helps musicians, students, and audio enthusiasts identify the pitch of notes being played in YouTube videos, useful for learning instruments, transcribing music, or analyzing audio content
1. User installs the extension and navigates to a YouTube video page. 2. User clicks the extension icon to open the popup. 3. User clicks 'Start Detection' — the content script captures audio from the YouTube video element via Web Audio API. 4. The McLeod Pitch Method algorithm analyzes the audio buffer in real-time to determine the dominant frequency. 5. The frequency is converted to a musical note name and displayed in the popup along with the Hz value. 6. User clicks 'Stop Detection' to halt the analysis.
Real-time pitch detection using the McLeod Pitch Detection methodDisplays the detected musical note (e.g., C4, D#5) and frequency in HzStart/Stop detection controls via extension popupWorks on YouTube video pages by capturing audio from the video elementUses Web Audio API (AudioContext, AnalyserNode, ScriptProcessorNode) for audio analysis
- 目标用户
- Musicians learning to play by ear / Music students practicing transcription / Audio engineers analyzing recordings / Anyone interested in identifying notes from YouTube videos
- The extension only works on YouTube video pages (youtube.com/watch) as specified in host_permissions. It does not support other video platforms.
- The pitch detection algorithm (McLeod method) is implemented client-side with no server-side processing, so accuracy depends on local audio capture quality.
- The extension requires the user to have audio playing from the YouTube video — it captures audio via the video element's MediaElementSource, which may not work if the browser blocks audio context or if the video is muted.
付费分析未识别到付费功能
The extension is entirely free with no paid features, subscription gates, billing integrations, or upgrade prompts. The keyword 'pro' found in static analysis matches only the variable name 'scriptProcessor' (a Web Audio API object), not a paid tier. No payment platforms, pricing UI, or license checks exist in any source file.
- 置信度
- 100
- 支付平台
- --
- 来源
- AI / 高
- 需要登录
- 否
- 登录理由
- The extension does not implement any login, authentication, or account creation mechanism. It operates entirely within the browser on YouTube pages without requiring any user credentials. The destination service (YouTube) does not require login for the core pitch detection workflow to function — the extension injects content scripts and uses the Web Audio API to analyze the video's audio stream directly.
hey 4tune can you build a pitch shifter that has 96 semitones up and down and also can you make 1.00 cents up and down too please and the - negative 1.00 cents has to sound like -32.80 semitones please and the + positive 1.00 cents has to sound like +32.80 semitones please but yeah I would love it if you could build a pitch shifter too I would and also I wanted a ultra high quality one too I do and also no mapping either and also I cannot make one for myself because it's too hard to make it is I kept trying I did