# vPlayer HiFi Youth — standalone version for legacy

> standalone version for legacy (iPhone/iPad app by 雷光 单.)

- Source: https://appshunter.io/ios/app/vplayer-hifi-youth/id6795004292 (this page in markdown: same URL + `.md`)
- Developer: [雷光 单](https://appshunter.io/developer/6776143965)
- Category: Music, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 37 MB
- Languages: American English
- Released: 2026-08-05
- Data updated: 2026-08-24
- User reviews in markdown: https://appshunter.io/ios/app/vplayer-hifi-youth/id6795004292/reviews.md

## What is vPlayer HiFi Youth?

vPlayer HiFi Youth — is a standalone edition purpose-built for iPhone 7 through iPhone X, targeting iOS 15 (with compatible iPad support). It retains the core audio playback features only and the purpose is to turn your retired iPhone/iPad into a dedicated hifi player. If you own a newer iPhone or iPad, please search for "vPlayer HiFi" — that app will continue to receive ongoing updates and improvements.
Features:
▸ Bit‑perfect — Custom AudioUnit pipeline with hardware sample‑rate. vPlayer matches your source rate so the system never touches your signal.
▸ Native DSD Playback — DSF and DFF, decoded through a custom engine with 4 selectable FIR decimation filters (Steep / Extended / Balanced / Conservative). Choose 176.4kHz or 352.8kHz output. No transcoding, no compromise.
▸ SACD-R ISO Decoder — Native Scarlet Book TOC parser. DSD64/128 playback with selectable decimation (176.4 kHz or 352.8 kHz).
▸ Memory Playback — Preload entire tracks into a dedicated 300 MB memory buffer — enough to hold a full CD‑length album or a high‑rate DSD track. Eliminates jitter from live file I/O.
▸ Polyphase SRC + FIR Upsampling — 6 SRC algorithms from Linear to Sinc‑512 tap with Kaiser‑windowed polyphase resampling. Independent FIR upsampling at 2× / 4× / 8× with selectable tap count (31 / 63 / 127) and homomorphic Minimum‑Phase conversion. SRC and FIR are mutually exclusive — one clean path, no double‑processing.
▸ Formats — MP3 · AIFF · M4A (Lite). Upgrade to Pro for studio‑grade WAV / FLAC / DSD (DSF, DFF) native playback.
▸ 10‑Band Graphic EQ — ±12 dB manual adjustment with per‑band reference guide. Instant response, zero latency. Toggle on/off directly from the signal chain bar.
▸ Parametric EQ (PEQ) — Full 10-band parametric equalizer: frequency, Q, and gain per band, with peaking, low-shelf, and high-shelf filters. Includes a live frequency-response curve. 13 Music Genre Presets — Classical, jazz, vocal, rock/pop, and folk tone shaping, crafted for vPlayer.
▸ Clock & Buffer — Control IO buffer duration (Auto or manual 256–4096 frames) to reduce jitter coupling with your DAC's clock.
▸ Output Covered — Built‑in speaker, wired headphones, AirPlay, Bluetooth, and external USB DAC. vPlayer detects your active route and matches the hardware sample rate automatically.
▸ Hands‑On Signal Chain — DSD · MEM · SRC ⊕ FIR · EQ/PEQ · DITH. Tap any chip to open its config panel — switch DSD filters, choose SRC algorithms, set FIR parameters, adjust EQ. Real‑time route detection shows your output device.
▸ Drag album folders via Finder or iTunes to the App's sharing folder. Pull down to refresh. Swipe to delete. Folders are auto‑detected.


## Version history (last 4 releases)

### 1.92 — 2026-08-14

v1.92 — 
Clock & Buffer — control IO buffer duration to reduce jitter coupling with your DAC
Parametric EQ
• New 10-band Parametric EQ — frequency, Q, and gain per band with peaking, low-shelf, and high-shelf filters
• Live frequency-response curve
• 13 music genre presets — classical, jazz, vocal, rock/pop, and folk
• Room EQ now auto-generates PEQ correction bands

### 1.90 — 2026-08-11

v1.90 — FIR engine overhaul
• FIR noise floor eliminated
• Corrected LP/MP filter coefficient generation
• Apolising / fs/4 filters now fully supported
• New 63/127‑tap Minimum Phase tables
• None filter type restricted to 2× oversampling

### 1.2.1 — 2026-08-08

v1.2.1, fixed "Product Unavailable" error on first Pro purchase

### 1.2 — 2026-08-05

No release notes.

## More apps by 雷光 单

- [vPlayer HiFi](https://appshunter.io/ios/app/vplayer-hifi/id6783141736)

All apps by 雷光 单: https://appshunter.io/developer/6776143965

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*