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S1 MP3 player

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There are other concepts named S1.
S1 MP3 Player

A typical S1 MP3 player.
Manufacturer: Many
Type: Portable MP3/WMA Player
Connectivity: USB 2.0/1.1
Range: 64 MB to 4 GB
CPU: Z80 compatible + 24-bit DSP
Screen: ID3 tag display
Frequency Response: 20 Hz to 20 kHz
Power AAA battery/Rechargeable battery on some models

S1 MP3 players are a type of digital audio players based on Actions chipsets. They are sold under dozens of different other brand names and in a variety of case designs.

Capabilities

Specifications

  • 24-bits DSP with on-chip DSU
  • 8-bit Z80 CPU core with on-chip DSU (runs at 24.576 MHz(TYP), up to 60 MHz — software controlled)
  • USB 2.0 Full speed (not Hi-Speed), with transfer rates up to 8 Mbit/s, or 1 MB/s
  • Works as a generic USB storage disk (USB Mass Storage)
  • Supports MPEG1/2/2.5 Audio Layer 1, 2, 3 (MP3) and WMA.
  • Frequency response: 20 Hz to 20 kHz
  • Earphone impedance 32 Ω [wasn't tested yet]
  • Output power: 5 mW x 5 mW (16 Ω) [wasn't tested yet]
  • S/N (signal to noise ratio) around 70 dB [quoted as up to 85dB by some vendors, known to be noisier at low volumes]
  • FM radio (depends on the presence of the Philips TEA5756 radio chip, this chip can handle the FM frequencies of both the US and Japanese commercial FM bands).
  • Graphic equalizer presets
  • Record from built-in microphone or radio in ADPCM WAV (32 kbit/s), ACT (8 kbit/s) or VOR (32 or 8 kbit/s) formats, and play back these files
  • Basic telephone number list viewer
  • ID3 tag display

Software

Hardware

  • Built using Hynix or Samsung solid-state NAND Flash Memory.
  • Philips TEA5756 Low Power FM Tuner Chip.
  • ATJ2085 as the processor, RAM and the ROM.
  • Some newer players have a slot for SD/MMC cards of capacites from 32MB to 4 GB.

Models

  • Orient HN500
  • Orient MP08, MP09
  • DIGIQuest DMTF17
  • InnoAX iMX-120
  • Orb A3188
  • Power Up! [1]
  • Sumvision M18 (256MB/512MG/1GB/2GB/4GB models in different colors)
  • Stone White / Stone Black (1gb/2gb) Produced by Compark [2]
  • SupportPlus
  • Tamashi KXB256 / KXB512 / KXB1024
  • Tamashi KSB256 / KSB512
  • Tamashi MKB256 / MKB512
  • Mach Trio 2 GB
  • Gigamax
  • Z6 Zeutronics (Digital M3/MP4 Player)
  • JFF Nano (Digital MP3/4 Player)
  • Mithus (Digital MP3 Player)
  • NEO
  • LASER (badged as generic, no model name)
  • TEVION 1GB Sports MP3 player - (Smart Group) Identifies as "Productor Wilson Co. Ltd." - Version 3.5.35. Supports Ogg Vorbis.
  • TEVION 1GB/2GB MP4 player - (fascin8)
  • INOVIX IMP-97 (and other models)
  • Orite EMP-735
  • Delstar
  • Nashi
  • LG UP3#
  • Zepo m15-1GB-SB0307 (sold on e-bay)
  • Explay c300
  • DSE MP#/WMA Players
  • Coby
  • Nextar


There are also several models which carry no brand name or model number on the device or packing, and a few sold under counterfeit trademarks such as Sony or iPod.

Battery life

Around 8 hours on models using a AAA battery (Alkaline or NiMH).

Software utilities

Available utilities for Microsoft Windows include an ACT to WAV file converter (for files recorded on the device), a basic desktop editor to enter contact details for the device's phone book function and device drivers for Windows 98. An 8 cm CD-ROM containing some or all of these is included with some versions of the device.

Firmware update issues

The firmware used in various S1 MP3 players differs significantly, but this is not widely understood. Problems have arisen as consumers have attempted to upgrade their players using incompatible firmware with a higher version number. This can permanently damage the players.

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