Saturday 15 December 2018

Protools 2018.8 Long Lock Time & Blog Moving to new Website

New Website

This will be the last post on this url,                    Daniel has organised a new web site for CB Electronics, modern look, and more features one of which is an integral blog that can be linked to the product pages. Here is the new url for this blog

Protools  2018.8- Long Lock Time 

I received the following from a USB-422 user - Peter Persaud at Foley One, Toronto, Canada

Pro Tools sees our Soundmaster but the lock time is super long now.  Almost 3-4 seconds.  I can get it to work locally from Soundmaster instantaneously if I put the ‘Allow 9-pin Transport Commands in Local Mode’but I can’t get it to chase to the Master video player.  If I take it off and just run the Remote function the system locks but again the super long 3-4 second problem.  It seems as if the Pro Tools is ‘slewing’ and trying to catch up to speed or something.  The Soundmaster says it’s locked, the Pro Tools play bar is rolling but no sound and the Stop tally is solid in Pro Tools and the Play tally is blinking for the 3 - 4 seconds like I described  Any thoughts on how I can tighten up the lock time?

The only way that the USB-422 could cause this problems is Latency, I replied

Apart from checking that the Maclow2p3.kext is active in the Mac extensions (see how in  Mac_latency.pdf) there is not much I can suggest. Latency is critical for lock up times as high latency will cause bad positional information.

Installing on High Sierra can be tricky as Apple have added extra protection (documented in our application notes) and there are often copies of the .kext in multiple locations!

However this was not the problem, after two days Pete's replied as follows

After an afternoon with a friend name Phil Seel who is a tech at Deluxe Post Production here in Toronto he remember that he discovered this year that Avid change their Serial ‘Coding’ after Pro Tools 2018.8.  I believe that is what he called it.  We installed Pro Tools 2018.7 and everything worked super fast again.

Hopefully publishing this will help others in the future

Monday 29 October 2018

Adding Trinnov ST-2 room equalisation to TMC-1-Penta system

I was recently asked the best way to add a Trinnov ST-2 to a TMC-1 system. The TMC-1 penta can be configured to have inserts in the output path which is ideal for  for this application.

The three main advantages of using room correction in the inserts and not after the outputs are as follows
  1. The volume control is after the room correction
  2. You can use the same room correction on multiple speaker sets by switching both outputs and profiles
  3. The TMC-1 has a insert key to enable/disable the room correction.
The ST-2 has both Analogue and AES I/O, the obvious choice in this case is to use the AES I/O.

The ST-2 GPIO option provides remote profile selection, to simplify operation we decided to to select the ST-2 profile when the speaker set is selected by the TMC-1. This was achieved by adding speaker set selection to the GP Out 1, 2 and 3 function select in TMC-1 advanced menu's 18, 19 and 20 and connecting GP outputs on the TMC-1 to GP inputs on the ST-2.

Connections between the TMC-1 and ST-2,

Note. 5v-24v external power supply (You can use a spare ST2 USB)
Power is required for the ST-2 Opto-coupled inputs, the TMC-1 outputs are open collector with a common ground.

Although the Penta is the only TMC-1 system with inserts, room equalization may be added after the outputs on the other systems and switched using the same GPIO's.

    Friday 3 August 2018

    A-Mon Headphone Monitoring

    I received an e-mail this morning from Paula Fairfield (Sound Designer on Game of Thrones) asking about headphone monitoring on her PD-3-AMon bundle. Paula is now now working in VR and headphone monitoring a big deal!

    Paula's mail made made me think more deeply about this - with the existing software there are 2 solutions

    1) Connect the Headphones to the Mini L/S output - I have customers doing this.

    2) Use the Headphone Jack on the TMC-1 which is connected to the Headphone Cue send and "Link" the H/P Cue to the stereo down mix on the Cue Sends page

    The main advantage of option 2 is that no extra cables are required, as it uses the existing connections between the TMC-1 and A-Mon complete with a headphone socket on the TMC-1/PD-3/TMC-1-S6.

    The main problem with option 2 is that the Dim, Mute keys and Gain control do not control the Headphone Cue Output! You must use the [H/P] user key as a Mute key , and hold the [H/P]  user key depressed to adjust the H/P cue gain - not an optimal solution.

    I have now updated the TMC-1-AMon software that simplifies option 2 by automating it within a single [Phones] user key that performs the following actions

    [Phones] On

    1. Display "Phones" as the speaker set
    2. Set the Headphone Cue input to the Stereo Downmix
    3. Mute the Main, Alt and Mini Speaker sets
    4. Connect the Dim, Mute and Gain controls to the Headphone Cue Output.

    [Phones] Off or select a Speaker Set

    1. Display the current speaker set 
    2. Restore the Headphone Cue input selection and Headphone cue gain to their previous setting
    3. Enable the selected speaker set
    4. Connect the Dim, Mute and Gain controls to the selected speaker set
    This update will be available in the next release of TMC-1-AMon software, if you wish to use it before email me for a beta version of the software.

    DADman, Mom, Eucon and TMC-1-Penta

    I am often asked questions about the differences between these different controllers all of which can control the Avid MTRX, DAD AX32 or the NTP Penta. Can they can work together and what are their requirements?

    Avid MTRX, DAD AX32 or the NTP Penta

    Functionally very similar these units provide digital and analog i/o, digital patch and digital summing. In the description below I will talk about the DAD to refer to all these units. 


    DADman is a software system for controlling signal gain, routing and summing (requires the Gain/Sum option) within the DAD. DADman requires a Windows or Mac computer to run and can be remote controlled from the Avid S6 via Eucon and/or by the MOM using a NTP protocol. The DADman software also provides metering.


    Software used by the S6 to control DADman, Then S6 includes a level control and talkback key. A touch screen can be used to control other functions.


    The MOM hardware Remote is connected to the DADman software via Ethernet. The MOM has 10 user programmable switches and LED's, a single knob,  the current gain is indicated by a ring of LED's around the knob.  A Layer switch is provided to select up to 4 layers indicated by a LED.  The function the switches and knob are defined for each layer within the DADman program.

    iPad MOM App

    Available from the apple App Store the MOM app emulates the MOM and has the advantage that the switches may be labeled by the user.

    Minimum Mom-DADman system


    The TMC-1-Penta connects directly to the DAD. It does not require DADman to operate however DADman may be used to route other signals within the DAD.

    The TMC-1-Penta I/O connections are defined on a windows or Mac computer using TMC1-Penta4 software and saved by the TMC-1-Penta.

    The TMC-1 has 18 switches and one knob most of which are user programmable. It has a 4.3" TFT display that is used to indicate the current signal source, level and speaker set and 8 or 12 channel metering. The display also indicates the functions of the user keys and knob..

    Minimum TMC-1-Penta System (A Mac/Win PC is required for setup only)

    TMC-1 with DADman


    I am biased! I found the setup easier using the TMC-1-Penta software, once the inputs and outputs are defined the routing is configured by the TMC-1 software. You can define more esoteric systems using the DADman software, but as yet I have not found a user who needed more that the TMC-1-Penta can provide. 

    Thursday 5 July 2018

    Preset or Scene - Whats in a name?


    Whilst checking and updating the TMC-1-DMon for the latest version of the D-Mon software I found that I had labeled two user definable keys as 'Preset', Not Good!

    'Scene' seems to be used more and more  to describe setup presets, I have replaced the new TMC-1 'Preset' described in recent posts with 'Scene' and replaced the 'Preset' for the  D-Mon  with 'S.Preset'.


    Whilst making the updates I added D-Mon Studio Preset to the TMC-1 Scene so that when changing the studio setup it is also possible to change the D-Mon Studio Preset. Please let me know if it is necessary to include Session snapshots? 

    Wednesday 27 June 2018

    TMC-1 and Yamaha MMP1

    This week I have been interfacing the TMC-1 with the Yamaha MMP1. We have been waiting for a MMP1 since it was announced last year, a loan unit finally arrived last week . Before starting we had to buy a I-Pad (we are Android users and our OSC software runs on both), this arrived two days ago since then I have been writing code.

    TMC-1 Yamaha MMP1

    You can run the TMC-1 alone or with the MMP1 editor and/or remote. For testing I am running the TMC-1 with the Yamaha Editor and I-Pad App. The TMC-1 can activate all the controls on the Control View of the MMP1 remote App and some extra functions from the Editor.

    Beta test software will be available next week, the functions already included are as follows

    • 7.1 setup
    • Gain
    • Mute, Dim
    • Speaker Mute, Solo
    • Input selection and sum
    • Output selection
    • Input trim
    • Metering
    • Phones On/Off and Gain
    • Cal
    • Speaker trim
    • Talkback Enable and Gain
    • Cue Enable and Gain
    • Downmix
    Updated July 10th 2018
    I also updated the TMC-1 Meters to display a maximum of 8 or 12 channels which will be available on other versions of the TMC-1 software

    I am waiting for meter assignment data definitions from Yamaha to finalize the software

    Other News:

    The I-Mon Immersive Monitor Controller is now shipping! (Link)

    Tuesday 19 June 2018

    New TMC-1-Penta Software for NTP/DAD and Avid MTRX

    In the previous post I explained the new Preset selection functionality on the TMC-1. I have just added an enhanced version for the TMC-1-Penta which includes the ability to  select different groups of inputs from the Input Pallet.

    The TMC-1-Penta can select between or sum up to 8 inputs which can be assigned from a pallet of 32 inputs. The new input group selection allows you to specify up to 4 groups of 8 inputs and select between them.

    Screenshot of the new Preset Page on the TMC-1-Penta configuration program
    The table on the left is used to define the presets and includes an I/P Group column. The buttons below may be used to define some standard presets.

    The table on the right is used to assign inputs from the pallet to the input groups.

    On the TMC-1 there are 6 new user keys as follows
    Pset 1, Pset 2, Pset 3 and Pset 4: Preset selection keys (The Preset name is displayed on the key)
    Preset: Increment the preset selection - the current preset is displayed at the top of the TFT Screen.
    I/P Group: Increment the Input Group - The Inputs are displayed in the TFT screen

    A beta version of this software is available on request