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Latest information
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The most recent versions of the firmware/software for this unit are as follows.

Firmware: V1.16 (Previously V1.15 Updated at this time)

Software for Windows (ASIO Driver)
  TASCAM DR-X series ASIO: V1.00

We request that you always use the latest software/firmware version for this unit.
For information about the latest software/firmware, check the TEAC Global Site (http://teac-global.com/)

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F/W V1.16 (December, 25 2023)
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< Maintenance items >
- Operation stability when adjusting the playback speed (VSA) for MP3 files has been improved.

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F/W V1.15 (August, 1 2023)
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< New functions >
- Chinese fonts that comply with the GB18030-2022 standard are now supported.

< Maintenance items >
- Operation stability has been improved in other ways.

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F/W V1.14 (September, 3 2021)
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< Maintenance items >

- When AUTO LEVEL was selected during use as a USB audio interface, 
  adaptation to the input levels of specific sound sources would be delayed.
  This has been fixed.

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F/W V1.13 (June, 11 2021)
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< Maintenance items >

- The remaining recording time would not be shown doubled
  when the channel was set to mono in the recording settings.
  This has been fixed.

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F/W V1.12
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< Maintenance items >

- If the power was turned off when audio data was in a playback paused state,
  noise would occur the first time the data was played back after the power was turned on again. 
  This has been fixed.

- Operation reliability has been improved.

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F/W V1.11
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< Maintenance items >

- In USB audio interface mode, changing the setting for the low cut or mic power
  (when an external mic was connected to the MIC/EXT IN jack) would cause sound
  to stop being input. This has been fixed.

- Minor issues with display appearance have been fixed.

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F/W V1.10
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< Maintenance items >

- A timer recording function that enables recording at specified times is now supported.
- Overdubbing function procedures have been made easier to understand.
- Default speaker and mic power settings have been changed.

  See the Reference Manual for operation procedures and other details.

< Maintenance items >

- Operation reliability has been improved.