Definition of Hi-Res AUDIO

Definition of Hi-Res AUDIO (Announced on June 12th 2014)

  1. In principle, the definition of "Hi-Res" is based on the announcement of Japan Electronics and Information Technology Industries Association (JEITA) on the March 26, 2014
  2. "Hi-Res" applicable products JAS defines is to fulfill the following specification on the recording, reproduction and signal transition process
    <Analogue process>
    • (1) Microphone response performance: 40 kHz or above during recording
    • (2) Amplification performance: 40 kHz or above
    • (3) Speaker and headphone performance: 40 kHz or above
    <Digital process>
    • (1) Recording format: Capability of recording using the 96kHz/24bit format or above
    • (2) I/O (Interface): Input/output interface with a performance of 96kHz/24bit or above
    • (3) Decoding: File playability of 96kHz/24bit or above (FLAC and WAV both required)
      (In case of self-recording equipment, FLAC or WAV file is required as minimum condition)
    • (4) Digital Signal Processing: DSP processing of 96kHz/24bit or above
    • (5) D/A conversion: Digital to analog conversion processing of 96 kHz/24 bits or above
  3. Listening evaluation process is to be organized
    • (1) Listening evaluation process is added and final decision as Hi-Res Audio product to be proved according to each company's sound evaluation standard.