JTL我的音域 vs SongSync Vocal DNA

「JTL 我的音域」是潔特力樂器社做的唱歌音域測試工具。打開麥克風跟著爬音,APP 自動記錄你最低唱到哪、最高唱到哪,算出你的個人音域範圍,再從歌庫推薦最適合你聲音範圍的歌。 【為什麼要測音域】 很多人在 KTV 隨便點歌,唱到副歌喊不上去就說「我聲音不夠高」,其實不是聲音不夠,是這首歌的音域跟你不合。每個人天生音域範圍不同,選對歌就唱得舒服,選錯歌就硬撐。這支 APP 就是幫你先搞清楚自己的音域,再選對歌。 【主要功能】 音域偵測:按開始測,從你舒服的音慢慢往低、往高唱,APP 用麥克風即時偵測音高,記下你能穩定唱出的最低音、最高音,算出音域跨度(半音數)。 歌曲推薦:測完音域,APP 從超過 320 首中文歌歌庫推薦音域跟你貼合的歌,不會太高、不會太低、副歌不會喊不上去。 KTV 降 key 提示:找到歌但有點偏高?每首歌都有對應的降 key 提示卡,標出建議降幾度、男生女生不同聲部怎麼抓。 歌手音域參考:看歌手的大致音域跨度,參考適不適合你跟著唱。 離線可玩:測音域功能完全離線(音訊在裝置上即時處理,不上傳)。歌庫資料從雲端同步,持續更新。 【適合誰】 - KTV 常點到喊不上去的人 - 想練唱但不知道從哪首歌開始的人 - 寫歌、選歌時想看音域跨度的人 【關於資料】 歌曲音域、降 key 提示等資料是潔特力樂器社從公開資料整理加上程式計算而來,可能有誤差,僅供參考,歡迎來信指正。 【關於潔特力樂器社】 潔特力樂器社是專注吉他、烏克麗麗、爵士鼓教學的樂器工作室。這支 APP 不是聲樂教學,而是把測音域、選對歌、降 key 這些 KTV 常見的麻煩做成一個好用的小工具。 【免費,靠廣告維持】 APP 完全免費,靠橫幅廣告加上偶爾的影片獎勵廣告維持,沒有訂閱、沒有 IAP。 【問題或建議】 歡迎來信:contact@jieterlimusic.uk 潔特力樂器社 Jieterli Music www.jieterlimusic.uk

SongSync AI is the private vocal coach for people who want to practice singing — quietly, at home, without uploading anything to a social feed and without touching anyone else's copyrighted music. WHY SONGSYNC • 5-dimension DNA score on every take: pitch (YIN cents), rhythm (Whisper-aligned timing), vibrato (long-tail stability), breath (RMS pause analysis), expression (AI). Result in ≈ 60 seconds. • Composition Rehearsal Loop (industry first): take 1 → DNA score → tap any weak axis → AI shows the exact weak seconds → you re-record → Δ chart shows your gain. Repeat until you hit your target. • Real-time pitch meter while you sing: ±50 cents at 30 fps, with a red warning the moment you drift more than 20 cents. • Weak-spot loop: practice a single phrase on repeat with the reference pitch line drawn under your voice. • DNA history: 7-day, 30-day, 365-day curves on every axis so you can prove to yourself that you actually got better. THE LIBRARY (CLEAN BY DESIGN) • 50 public-domain songs at launch: Twinkle, Greensleeves, Amazing Grace, Frère Jacques, Vivaldi & Caccini arias, Happy Birthday (EU PD 1893 melody), folk and national anthems, plus CC0 backing tracks from musopen.org and freemusicarchive.org. • Upload your own backing tracks (mp3 / m4a, ≤ 50 MB). Strictly private. Strictly your own. • No commercial / streaming songs are ever bundled — not even a 30-second demo. No social feed. No public profile. No leaderboards. PRIVACY BY DESIGN • Microphone permission is requested ONLY when you tap Record, and only while you record (the OS-level orange mic dot is your proof). • Audio recordings stay on your device. Whisper transcription happens over TLS to our self-hosted gateway and the audio bytes are dropped after the call. • No tracking, no ad networks, no IDFA prompt. • Account delete is one tap and cascades within 30 days (GDPR Edge Function), including device-local audio files. PRICING • Free tier: 3 practices / day, 14-day DNA history, full real-time pitch meter, weak-spot loop limited to 5 / day. • Pro: $4.99 / month or $19.99 / year (save 67%), with a 7-day free trial. Pro unlocks unlimited practice, full-year DNA history, unlimited weak-spot loops, and the complete Composition Rehearsal Loop. Built by a single indie developer chasing 20+ honest MVPs in 2026. No VC, no growth hacks, no harvested data — just careful design for people who care about their voice. Subscriptions auto-renew until canceled. Manage and cancel in App Store account settings. Pricing varies by region. LEGAL SongSync includes only public-domain works, CC0 / openly licensed backing tracks, your own voice recordings, and audio you upload that you have the right to use. We do not provide copyrighted music. You are responsible for the rights of anything you upload. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://songsync.sanva.top/privacy SUPPORT https://songsync.sanva.top/support