![How do people able to tell a high quality MP3 (frequency go up to 20khz) sound worse than a lossless audio since human can only hear close to 20khz frequency ? How can I find out if a FLAC is genuine or not upconverted (other than knowing the source of ... How do people able to tell a high quality MP3 (frequency go up to 20khz) sound worse than a lossless audio since human can only hear close to 20khz frequency ? How can I find out if a FLAC is genuine or not upconverted (other than knowing the source of ...](https://i.redd.it/how-do-people-able-to-tell-a-high-quality-mp3-frequency-go-v0-sw8fqrhzl4zb1.png?width=1920&format=png&auto=webp&s=be864124213ca7696d7168621f04fe3cbb7683d7)
How do people able to tell a high quality MP3 (frequency go up to 20khz) sound worse than a lossless audio since human can only hear close to 20khz frequency ? How can I find out if a FLAC is genuine or not upconverted (other than knowing the source of ...
![Amazon.com: MP3 Player, Portable Mini MP3 Music Player Sports Back‑Clip LCD Screen MP3 Support 32GB Memory Card with Earphone and USB Cable(Black) : Electronics Amazon.com: MP3 Player, Portable Mini MP3 Music Player Sports Back‑Clip LCD Screen MP3 Support 32GB Memory Card with Earphone and USB Cable(Black) : Electronics](https://m.media-amazon.com/images/I/71zBN4oxLgL._AC_UF894,1000_QL80_.jpg)
Amazon.com: MP3 Player, Portable Mini MP3 Music Player Sports Back‑Clip LCD Screen MP3 Support 32GB Memory Card with Earphone and USB Cable(Black) : Electronics
![64gb Built-in Hd Speaker Portable Mp3 Player, Support Lossless Music To Restore High-fidelity Sound Quality With Touch Button, Recording, Fm Radio Function For Sports, Running Ultralight Metal Case Design - Temu 64gb Built-in Hd Speaker Portable Mp3 Player, Support Lossless Music To Restore High-fidelity Sound Quality With Touch Button, Recording, Fm Radio Function For Sports, Running Ultralight Metal Case Design - Temu](https://img.kwcdn.com/product/Fancyalgo/VirtualModelMatting/41037e5ab0bc874b021598bcf14c682e.jpg?imageMogr2/auto-orient%7CimageView2/2/w/800/q/70/format/webp)
64gb Built-in Hd Speaker Portable Mp3 Player, Support Lossless Music To Restore High-fidelity Sound Quality With Touch Button, Recording, Fm Radio Function For Sports, Running Ultralight Metal Case Design - Temu
![Amazon.com: Hmusic P68 HiFi MP3 Player with Clip, Lossless DSD High Resolution Music Player Bluetooth, Portable Hi-Res Audio Player with 16GB Memory Card, Support up to 128GB HiFi Music Player for Sport, Amazon.com: Hmusic P68 HiFi MP3 Player with Clip, Lossless DSD High Resolution Music Player Bluetooth, Portable Hi-Res Audio Player with 16GB Memory Card, Support up to 128GB HiFi Music Player for Sport,](https://m.media-amazon.com/images/I/51HJe4pKLCL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Hmusic P68 HiFi MP3 Player with Clip, Lossless DSD High Resolution Music Player Bluetooth, Portable Hi-Res Audio Player with 16GB Memory Card, Support up to 128GB HiFi Music Player for Sport,
![TDM157 MP3 Player Decoder Board High Quality Digital Audio Player USB SD Bluetooth FM Music Player Module - AliExpress TDM157 MP3 Player Decoder Board High Quality Digital Audio Player USB SD Bluetooth FM Music Player Module - AliExpress](https://ae01.alicdn.com/kf/H83fb04f746af4014ae6d7d0f8ebf585a7/TDM157-MP3-Player-Decoder-Board-High-Quality-Digital-Audio-Player-USB-SD-Bluetooth-FM-Music-Player.jpg)
TDM157 MP3 Player Decoder Board High Quality Digital Audio Player USB SD Bluetooth FM Music Player Module - AliExpress
![MP3 Music Player - Compact and Lightweight Design, Long Battery Life, High- Quality Sound - Silver - Walmart.com MP3 Music Player - Compact and Lightweight Design, Long Battery Life, High- Quality Sound - Silver - Walmart.com](https://i5.walmartimages.com/asr/29aab148-a5f6-4d27-beb1-4626fa2bd0d0.8c04b9687b500a6ce6e29e0b5ac33284.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
MP3 Music Player - Compact and Lightweight Design, Long Battery Life, High- Quality Sound - Silver - Walmart.com
![FINIS Duo - High-Quality Underwater MP3 Player - Waterproof Bone Conduction Swimming Headphones for the Pool - Great Addition to Pool and Swimming Accessories - Supports MP3 and WMA files - Walmart.com FINIS Duo - High-Quality Underwater MP3 Player - Waterproof Bone Conduction Swimming Headphones for the Pool - Great Addition to Pool and Swimming Accessories - Supports MP3 and WMA files - Walmart.com](https://i5.walmartimages.com/seo/FINIS-Duo-High-Quality-Underwater-MP3-Player-Waterproof-Bone-Conduction-Swimming-Headphones-Pool-Great-Addition-Accessories-Supports-WMA-files_fe4357d3-0b27-4244-b155-c9dcce39bf48.56fdd7b6d1b562d53816ca8ff753585a.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
FINIS Duo - High-Quality Underwater MP3 Player - Waterproof Bone Conduction Swimming Headphones for the Pool - Great Addition to Pool and Swimming Accessories - Supports MP3 and WMA files - Walmart.com
![High Quality MP3 Player with Custom Color - China MP3 Player and Car Audio price | Made-in-China.com High Quality MP3 Player with Custom Color - China MP3 Player and Car Audio price | Made-in-China.com](https://image.made-in-china.com/202f0j00dWGqYtsDfykO/High-Quality-MP3-Player-with-Custom-Color.webp)
High Quality MP3 Player with Custom Color - China MP3 Player and Car Audio price | Made-in-China.com
![TDM157 MP3 Player Decoder Board High Quality Digital Audio Player USB SD Bluetooth FM Music Player Module - AliExpress TDM157 MP3 Player Decoder Board High Quality Digital Audio Player USB SD Bluetooth FM Music Player Module - AliExpress](https://ae01.alicdn.com/kf/Hf059bd0813904b58bcf25ae452992d57L/TDM157-MP3-Player-Decoder-Board-High-Quality-Digital-Audio-Player-USB-SD-Bluetooth-FM-Music-Player.jpg)
TDM157 MP3 Player Decoder Board High Quality Digital Audio Player USB SD Bluetooth FM Music Player Module - AliExpress
![Amazon.com: MP3 Player, 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, with FM, Support Recording, Includes arm Strap and Player Case, Easy to Carry, Black. : Amazon.com: MP3 Player, 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, with FM, Support Recording, Includes arm Strap and Player Case, Easy to Carry, Black. :](https://m.media-amazon.com/images/I/61Brqn8oX8L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: MP3 Player, 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, with FM, Support Recording, Includes arm Strap and Player Case, Easy to Carry, Black. :
![TPM118B Digital Audio Player MP3 Decoder Board High Quality Portable MP3 Player Module With Bluetooth and FM Radio - AliExpress TPM118B Digital Audio Player MP3 Decoder Board High Quality Portable MP3 Player Module With Bluetooth and FM Radio - AliExpress](https://ae01.alicdn.com/kf/S85c2318cc88f4a17ab679523781c6986B.jpg_640x640Q90.jpg_.webp)
TPM118B Digital Audio Player MP3 Decoder Board High Quality Portable MP3 Player Module With Bluetooth and FM Radio - AliExpress
![Amazon.com: 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, Support Recording, with FM, Includes arm Strap and Player Case, Easy to Carry, Blue. : Electronics Amazon.com: 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, Support Recording, with FM, Includes arm Strap and Player Case, Easy to Carry, Blue. : Electronics](https://m.media-amazon.com/images/I/61oZrQmCKKL.jpg)
Amazon.com: 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, Support Recording, with FM, Includes arm Strap and Player Case, Easy to Carry, Blue. : Electronics
![Amazon.com: MP3 Player, 64GB MP3 Music Player with Bluetooth, 1.8 Inch Portable Digital Music Player with Voice Recording, FM, High-Fidelity Sound Quality, 200mAh, Easy to Carry, Rose : Electronics Amazon.com: MP3 Player, 64GB MP3 Music Player with Bluetooth, 1.8 Inch Portable Digital Music Player with Voice Recording, FM, High-Fidelity Sound Quality, 200mAh, Easy to Carry, Rose : Electronics](https://m.media-amazon.com/images/I/71JVquOOPcL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: MP3 Player, 64GB MP3 Music Player with Bluetooth, 1.8 Inch Portable Digital Music Player with Voice Recording, FM, High-Fidelity Sound Quality, 200mAh, Easy to Carry, Rose : Electronics
![Amazon.com: MP3 Player Bluetooth 5.0 Touch Screen Music Player Portable mp3 Player with Speakers high Fidelity Lossless Sound Quality mp3 FM Radio Recording e-Book MP3 Player Support (128GB) : Electronics Amazon.com: MP3 Player Bluetooth 5.0 Touch Screen Music Player Portable mp3 Player with Speakers high Fidelity Lossless Sound Quality mp3 FM Radio Recording e-Book MP3 Player Support (128GB) : Electronics](https://m.media-amazon.com/images/I/618S7NwocyL.jpg)
Amazon.com: MP3 Player Bluetooth 5.0 Touch Screen Music Player Portable mp3 Player with Speakers high Fidelity Lossless Sound Quality mp3 FM Radio Recording e-Book MP3 Player Support (128GB) : Electronics
![Amazon.com: 64GB MP3 Player with Bluetooth 5.0, ZAQE 2.4" Full Touch Screen Portable Music Player, Lossless Sound Digital Audio Player Built-in HD Speaker, FM Radio, Player Case Earphones Included : Electronics Amazon.com: 64GB MP3 Player with Bluetooth 5.0, ZAQE 2.4" Full Touch Screen Portable Music Player, Lossless Sound Digital Audio Player Built-in HD Speaker, FM Radio, Player Case Earphones Included : Electronics](https://m.media-amazon.com/images/I/71iCjHQBVLL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 64GB MP3 Player with Bluetooth 5.0, ZAQE 2.4" Full Touch Screen Portable Music Player, Lossless Sound Digital Audio Player Built-in HD Speaker, FM Radio, Player Case Earphones Included : Electronics
![Amazon.com: MP3 Player, 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, with FM, Support Recording, Includes arm Strap and Player Case, Easy to Carry, Black. : Amazon.com: MP3 Player, 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, with FM, Support Recording, Includes arm Strap and Player Case, Easy to Carry, Black. :](https://m.media-amazon.com/images/I/71FLGG6L4AL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: MP3 Player, 64GB MP3 Players with Bluetooth 5.2 Supports Lossless Music to Restore High-Fidelity Sound Quality, with FM, Support Recording, Includes arm Strap and Player Case, Easy to Carry, Black. :
![High Quality Portable Mp3 Player Mini Clip Mp3 Player Waterproof Sport Mp3 Music Player Sport Mp3 - Mp3 Players - AliExpress High Quality Portable Mp3 Player Mini Clip Mp3 Player Waterproof Sport Mp3 Music Player Sport Mp3 - Mp3 Players - AliExpress](https://ae01.alicdn.com/kf/HTB1J2eOXJnJ8KJjSszdq6yxuFXaE.jpg_640x640Q90.jpg_.webp)
High Quality Portable Mp3 Player Mini Clip Mp3 Player Waterproof Sport Mp3 Music Player Sport Mp3 - Mp3 Players - AliExpress
![64gb Built-in Hd Speaker Portable Mp3 Player, Support Lossless Music To Restore High-fidelity Sound Quality With Touch Button, Recording, Fm Radio Function For Sports, Running Ultralight Metal Case Design - Temu 64gb Built-in Hd Speaker Portable Mp3 Player, Support Lossless Music To Restore High-fidelity Sound Quality With Touch Button, Recording, Fm Radio Function For Sports, Running Ultralight Metal Case Design - Temu](https://img.kwcdn.com/product/1e23313ef0/4d2a83d9-baf2-49e3-8509-ef5c5064d328_2000x2000.jpeg?imageMogr2/auto-orient%7CimageView2/2/w/800/q/70/format/webp)
64gb Built-in Hd Speaker Portable Mp3 Player, Support Lossless Music To Restore High-fidelity Sound Quality With Touch Button, Recording, Fm Radio Function For Sports, Running Ultralight Metal Case Design - Temu
![Amazon.com: ChenFec MP3 Player with Bluetooth 32GB MP3 Players 2.4 Inch Large Screen Lossless Music High-Fidelity Sound Quality Support Recording FM Kids Student Adult mp4 Player,Expandable Memory 128GB,Black : Electronics Amazon.com: ChenFec MP3 Player with Bluetooth 32GB MP3 Players 2.4 Inch Large Screen Lossless Music High-Fidelity Sound Quality Support Recording FM Kids Student Adult mp4 Player,Expandable Memory 128GB,Black : Electronics](https://m.media-amazon.com/images/I/71U32i47enL.jpg)
Amazon.com: ChenFec MP3 Player with Bluetooth 32GB MP3 Players 2.4 Inch Large Screen Lossless Music High-Fidelity Sound Quality Support Recording FM Kids Student Adult mp4 Player,Expandable Memory 128GB,Black : Electronics
![High Quality Portable Mp3 Player Mini Clip Mp3 Player Waterproof Sport Mp3 Music Player Sport Mp3 - Mp3 Players - AliExpress High Quality Portable Mp3 Player Mini Clip Mp3 Player Waterproof Sport Mp3 Music Player Sport Mp3 - Mp3 Players - AliExpress](https://ae01.alicdn.com/kf/HTB10r5kXBfM8KJjSZPiq6xdspXay.jpg_640x640Q90.jpg_.webp)