MixPre Series Firmware v2.21

Sound Devices MixPre Series firmware - (v2.21) is an update for the MixPre-3, MixPre-6, MixPre-10T, and the MixPre-10M. This update provides new features and performance enhancements to previously released firmware. It is highly recommended that users of MixPre audio recorders update to the latest version of firmware available as soon as possible.

This MixPre Series Firmware Revision Notice provides more information about any new features and functionality changes in this released version of firmware.

Last update May 31, 2018

Changes introduced in 2.21 include:

New

For all models:
  • Increased maximum number of cue markers to 99 per file for Audio Projects and 99 per song for Music Projects.
  • Cue Marker Names are now readable by compatible DAWs e.g. Adobe Audition, Reaper.

Fixed

For all models:
  • Windows 7 and 8 were not able to import or read MixPre .wav audio files.
  • Wave file header was not always being updated for file splits.

2.21 - May 31, 2018

New

For all models:
  • Increased maximum number of cue markers to 99 per file for Audio Projects and 99 per song for Music Projects.
  • Cue Marker Names are now readable by compatible DAWs e.g. Adobe Audition, Reaper.

Fixed

For all models:
  • Windows 7 and 8 were not able to import or read MixPre .wav audio files.
  • Wave file header was not always being updated for file splits.

2.20 - May 24, 2018

New

For all models:
  • Output gain range increased by 20dB.
  • Added Output Mute option.
  • Added Output Mute * shortcut option.
For MixPre-10M
  • Import of WAV audio files (native and non-native) when creating a Music Project.
For MixPre-10T
  • Displays a timecode reset notification in Free Run and Time of Day modes when timecode is reset after the timecode hold time of 4 hrs is exceeded.
For MixPre-3 and MixPre-6 only
  • Jump to cue marks by holding Play and rotating the headphone encoder.
For MixPre-3, -6, and -10T only
  • Plugin support: A new System > Plugins submenu for installing future licensed plugins.
  • New Record > Record Bells menu option to disable record bell notifications.
  • Added Inputs MS Decode submenu to select MS decoding to both ISOs and Mix or Mix Only.
  • Recordings that are split across multiple files now playback seamlessly.
  • Playback of non-native WAV files in Audio Projects.

Changed

For MixPre-3, -6, and -10T only
  • In Remix mode, re-recorded files are now placed in the same project folder as the source file.
  • A file's 'Name' has been increased to a maximum of 20 characters.
For all models:
  • Channel Screen meter remains visible and active when adjusting channel gain.
  • Headphone Clip Indicator is now displayed in power/battery level indicator in the top right of the screen.
  • Post fade channel clipping is now indicated by a channel's ring LED illuminating red.
  • Projects are now sorted by creation date/time in the Project > Open menu.
  • Menu screens now allow the user to switch from one parameter to another with a single touch.

Fixed

For MixPre-10T only:
  • USB Thumbdrive was prematurely shown as full.
  • Time of Day timecode was incorrect after power cycling within the timecode hold time (4 hours).
For MixPre-10M only:
  • Mute was not muting tracks with Input source set to Click.
  • Metronome Volume and Click track level were inconsistent.
  • Rendered audio files were not automatically copied to the USB Drive.
  • Cue marks that fell outside of the Play In / Stop region were still embedded in the rendered wav file.
  • Cue marks set as Play In, Record In, Record Out, Stop were not being moved correctly.
  • Rendered isolated wav files would occasionally contain discontinuities at crossfades.
  • Phantom Power setting was not carrying over to the linked input in a linked pair.
  • Playback would not always work after recording the first take in a music project.
  • 44.1kHz sample rate would not carry over to new projects.
For MixPre-6 and -10T only:
  • MixPre-6 channels 5 & 6 and MixPre-10T channels 9 & 10 were displaying 6dB too high.
  • Solo and Mutes were not linked when Link Type was set to 'All'.
For MixPre-3, -6, and -10T only:
  • Audio bleed-through into the record start/stop bells.
  • MS balance control was occasionally resetting to center.
  • Cue marks were not copied from the original file to the re-recorded file.
  • Track Arm indicators would flash after playing back.
  • Phantom Power setting could be displayed incorrectly in the Channel screen after playback.
  • Re-recording was only possible when the source file contained three or more tracks.
  • Headphone monitoring source would change after playback.
  • Previous project was not loading when reinserting the SD card.
  • Recording would stop when recording automatic file splits to daily folders over midnight.
For all models:
  • Jumping between cue marks has been improved.
  • Media I/O Error message was incorrectly displayed for a full SD card.
  • In some DAWs, MixPre audio file signal clipping was occurring at -0.1dBFS.
  • Zero byte split files were created on some SD cards.
  • Pop-up dialog windows could appear one on top of the other.
  • Improved handling of pop up dialog boxes.
  • Improved audio scrubbing.
  • Improved transport handling.
  • Improved media performance.

2.10 - April 12, 2018

New

  • Re-mix (-3, -6, -10T only). Ability to playback any existing file and create a new LR mix by adjusting its ISO tracks' fader levels and pans. Re-mix is enabled in the Record menu and is only available in Advanced Mode or Custom Mode with Gain set to Advanced. Re-mixing requires that the source file include at least one ISO track.
  • Re-record LR (-3, -6, -10T only). Ability to record the LR mix during remixing. All metadata from the source file is transferred to the re-recorded 2-ch LR mix poly wav file. A re-recorded file's name is the same as the original source file name but prefixed with the characters 'R_'. Re-recording requires Remix to be enabled and the source file to have at least one ISO track.
  • Cue Marks. Support for cue marks to allow jumping directly to points of interest within a wav file. Cue marks can be added during recording or playback and can be deleted, named and moved. Jump directly to a cue mark by selecting it from a file's Cue List and then pressing play. On the 10T, skip from cue to cue using FFWD and REW joystick. Cue marks are embedded in the wav file's metadata and can be read and displayed by compatible computer applications (e.g. Adobe Audition, Reaper.)
  • Option to set the USB Audio interface to output only 2 channels in order to increase compatibility with applications that do not support multichannel USB audio. Go to Menu>System>USB Audio and select Stereo Out.
  • Additional channel linking options (-6, -10T only). For the MixPre-10T, additional options include 1-3, 1-5, 1-6, 1-7, 1-8, 5-7 and for the MixPre-6, option 1-3 is added.
  • Link Type menu (-6, -10T only) providing the ability to choose which parameters are linked when linking three or more channels. Selecting the 'All' option links input type, trim gains, faders, limiters, low cuts, record arms, and delays. Selecting the 'Faders Only' option only links the faders.

Changed

  • Four button layout is now changed to six button layout in the Channel screens.
  • Rendering start and stop points are now determined by the Play In and Stop cues if set. This is ideal for rendering out only a part of a project. (10M only)
  • Cue markers are now embedded into rendered WAV files. (10M only)
  • Mute now deactivates the input. Previously mute would only mute the input in the headphone monitor.
  • Mute is now accessible via the Channel screen.
  • 10T factory default mode is now set to Advanced instead of Basic.
  • Monitor button is now grayed out when Input is set to Off. (10M only)
  • The track that is using 'Air' is now displayed in the greyed out button of other tracks. (10M only)

Fixed

  • Headphone clip indicator was only being displayed when adjusting headphone level
  • Some USB keyboard shortcuts were not working (10M only)
  • Brief audio burst when soloing a channel (10M only)
  • Enabling a track's input monitor would incorrectly enable other tracks' input monitors during record (10M only)
  • Transport stability, media performance and UI navigation have been improved
  • Timecode Menu and USB Drive Status Error Handling have been improved (10T only)
  • Fast Forward and Rewind were not responsive in the Channel screens. (10T and 10M only)

1.53 - Jan. 18, 2018

Changed

  • The MixPre-10T transport control's orange LED brightness is dimmed in stop mode to make it clearer when the unit is recording.
  • The Take List indicates which file is playing back by displaying it in green text.

Fixed

  • Limiters are not always enabled when switching from Advanced to Basic Mode
  • Pans were not always correct after switching to Basic Mode from Advanced Mode with Inputs Linked.
  • If timecode backup time expired when the MixPre-10T was powered off, TOD timecode was incorrect when next powered on.
  • Rare stuttering of audio during playback of some files
  • Audio crackling noise in headphones when turning HP encoder
  • Incorrect gain values when channels are MS linked
  • Sound Reports were not automatically copied to the USB thumbdrive (MixPre-10T only)
  • New Project Name was not retained after a power cycle if no files were recorded in that project
  • Long file names were not being displaying fully

1.52 - Nov. 29, 2017

Fixed

  • Rare issue where input level would momentarily change

1.51 - Oct. 30, 2017

Changes

  • Date/Time settings moved to System Menu plus simplified method of entry.
  • New Project folders are now only created when the first file is recorded, preventing the SD card filling up with empty folders.
  • USB keyboard shortcut [Shift + 8] performs the * Button function. (MixPre-6 only)
    On the MixPre-10T, the Shift + 8 shortcut performs the * (left toggle) Switch function, and Ctrl + Shift + 8 performs the ** (right toggle) Switch function.

Fixed

  • Activating Record is now prevented while in USB File Transfer Mode. (MixPre-10T only)
  • Improved battery type detection.
  • MixPre-3 Input Delay values now hold over power cycles.
  • Files can now be selected for playback from the File List while the MixPre is still playing back a file.
  • Cleaned up typos and incorrect messages in various popup dialog boxes.
  • Corrected three sample offset between isolated and mix track recorded files.
  • Virtual keyboard screens were not saving and exiting on the first press of the enter key.
  • Channel knob and gain range values could be wrong after changing a channel source to Aux In or switching Aux In Mode between Mic and Line.
  • Time is now updated on the Status Bar if left as the active display.
  • Rare system lock up that could occur after hours of using Camera timecode.
  • External UBits are now stamping correctly as hex values.
  • With Channel 1 set to USB1, lInking 1-4 would assign channels 1-4 as USB1, USB1, USB2, USB3 instead of USB1, USB2, USB3, USB4.
  • Multiple other system enhancements and improvements.

1.50 - Sept/Oct 2017

New

  • This is the initial firmware release for the MixPre-10T, the newest member of the MixPre Series of recorders, mixers, and USB audio interfaces. This lightweight, 10-input/12-track recorder offers world-class sound quality, flexible powering, and built-in, highly accurate timecode generator/reader – perfect for production sound mixers, field recordists and sound designers. See https://www.sounddevices.com/products/recorders/mixpre-10t

1.20 - Sept. 28, 2017

New

  • The MixPre-6 now offers 4-channel linking. (This feature is only available on the MixPre-6.)
    When channels 1-4 are linked, gain, fader, limiters, track arming, low cut filters, and input delay are all linked and controlled from Channel 1 screen and knob.
    Note: Available options vary based on set mode.
  • Input Delay, a feature already available on the MixPre-6, is now supported on the MixPre-3. Available on channels 1-3, adjustable from 0 to 30 ms in 1 ms increments.

Changes

  • In this firmware, the Linking feature was moved from Custom Setup > Gain > Advanced to Custom Setup > Channel > Advanced. This change now lets you link inputs while still having the option of one or two gain stages.

    Users wanting to link inputs, but control all levels from the front-panel channel 1 knob should set System > Mode to Custom and then in Custom Setup, set Gain to Basic and Channel to Advanced.

    Users wanting to link inputs with two gain stages while in Custom mode, ensure that Gain and Channel are both set to Advanced. Then, you can adjust gain levels for linked channels from the Channel 1 screen and adjust fader levels for linked channels with the Channel 1 knob.

Fixed

  • Corrected offset in timecode file stamps when using external LTC via the 3.5 mm Aux Input.
  • Limiter Indicator would not properly show activity after unlinking input channels.
  • Input delay for linked channels 1-2 incorrectly applied to linked channels 3-4 after power cycle.
  • Gain not correctly applied to MS-linked line level inputs.
  • Aux gain fader range display issues.
  • Playback issue where isolated tracks were not routed correctly to outputs.

1.11 - June 26,2017

New

  • When playing back a file, the file's remaining time is now shown in the Status Bar.

Changes

  • The File List Number is now editable from 1 to 9999.
  • The Current Project name is now displayed in the Menu>Project header.
  • The Headphone output is briefly muted when Aux In Mode is changed to prevent loud audible pops.
  • Various system improvements and enhancements.

Fixed

  • In some custom setups, ISO Tracks were recorded low level when Tracks L and R were disarmed.
  • File corruption when power was depleted mid-recording.
  • Some custom mode settings were not retained after a power cycle; for instance, 40 Hz Low Cut Filter setting was set to 80Hz after a power cycle.
  • After a power cycle, channel gain was not set correctly until the channel knob was slightly adjusted.
  • Channel 5 and 6 did not correctly show limiter activity when Input Source was set to Aux In.
  • Clip indicator showed twice for one clipping event.
  • Changing headphone gain while in the Solo/Mute screen caused incorrect monitoring and routing of signals to the headphone output.
  • Gain and pan controls were not grayed out on channel 2 when channels 1 and 2 were linked as a stereo or MS pair. (MixPre-3 Only)
  • Engaging record with a full SD card inserted created small files.
  • Incorrect message was displayed when attempting to record with a locked SD Card inserted. Now, 'SD Card is Locked' is reported.
  • Camera Meters (C1, C2) did not display signal activity in Custom Mode with Advanced Headphone Settings.
  • Camera and USB Meters didn’t show any activity during playback.
  • USB Audio Routing was incorrect while playing back.
  • The Open Project Menu list was displayed incorrectly when rapidly scrolling through it.
  • Audio Delay could have been incorrect after changing sample rate.
  • A recording's first sample could have been incorrect after changing sample rate.
  • Improved stability of HDMI Timecode.
  • USB Keyboard shortcut Ctrl + Z did not perform Undo.
  • USB Keyboard shortcut F2 did not enter the File List.
  • The Record/L&R Gain setting incorrectly altered the L&R track playback levels. The setting should only affect the L&R record levels, not the L&R playback levels.

1.01 - May 30, 2017

Fixed

  • Upon startup with an SD card inserted, the MixPre-3 or MixPre-6 could enter a power cycle loop.

1.00 - Initial Release

Please read and follow the steps below carefully. You may want to print them before upgrading firmware.

Sound Devices recommends saving a setup file prior to loading new firmware.

Prepare to Update

  1. Download the MixPre firmware file MixPre_2.21.zip using the link below.
    From the zip archive, extract the file within named MixPre_2.21.prg file. Copy this .prg file to the root level (not within a folder) of an SD memory card that has already been formatted by the MixPre recorder.
  2. Power the MixPre via USB-C to external DC power or via "fully charged" batteries. Do not perform the update with low batteries or unstable power sources.
  3. Insert the SD card with the .prg file.
  4. Power on the MixPre.
  5. Navigate to System > Update Firmware and follow the on-screen instructions.
  6. When the update is complete the recorder will power cycle itself. The version number MixPre_2.21 will be displayed briefly on the splash screen while booting up. A message box appears "Firmware updated successfully Version:MixPre_2.21". Tap "OK". Please note any changes or additions to the main Menu (if applicable). Consult product documentation for details.