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• Summary Video Accessibility Talk

  1er janvier 2014, par silvia

  I’ve just got off a call to the UK Digital TV Group, for which I gave a talk on HTML5 video accessibility (slides best viewed in Google Chrome).

  The slide provide a high-level summary of the accessibility features that we’ve developed in the W3C for HTML5, including :

  • Subtitles & Captions with WebVTT and the track element
  • Video Descriptions with WebVTT, the track element and speech synthesis
  • Chapters with WebVTT for semantic navigation
  • Audio Descriptions through synchronising an audio track with a video
  • Sign Language video synchronized with a main video

  I received some excellent questions.

  The obvious one was about why WebVTT and not TTML. While for anyone who has tried to implement TTML support, the advantages of WebVTT should be clear, for some the decision of the browsers to go with WebVTT still seems to be bothersome. The advantages of CSS over XSL-FO in a browser-context are obvious, but not as much outside browsers. So, the simplicity of WebVTT and the clear integration with HTML have to speak for themselves. Conversion between TTML and WebVTT was a feature that was being asked for.

  I received a question about how to support ducking (reduce the volume of the main audio track) when using video descriptions. My reply was to either use video descriptions with WebVTT and do ducking during the times that a cue is active, or when using audio descriptions (i.e. actual audio tracks) to add an additional WebVTT file of kind=metadata to mark the intervals in which to do ducking. In both cases some JavaScript will be necessary.

  I received another question about how to do clean audio, which I had almost forgotten was a requirement from our earlier media accessibility document. “Clean audio” consists of isolating the audio channel containing the spoken dialog and important non-speech information that can then be amplified or otherwise modified, while other channels containing music or ambient sounds are attenuated. I suggested using the mediagroup attribute to provide a main video element (without an audio track) and then the other channels as parallel audio tracks that can be turned on and off and attenuated individually. There is some JavaScript coding involved on top of the APIs that we have defined in HTML, but it can be implemented in browsers that support the mediagroup attribute.

  Another question was about the possibilities to extend the list of @kind attribute values. I explained that right now we have a proposal for a new text track kind=”forced” so as to provide forced subtitles for sections of video with foreign language. These would be on when no other subtitle or caption tracks are activated. I also explained that if there is a need for application-specific text tracks, the kind=”metadata” would be the correct choice.

  I received some further questions, in particular about how to apply styling to captions (e.g. color changes to text) and about how closely the browser are able to keep synchronization across multiple media elements. The earlier was easily answered with the ::cue pseudo-element, but the latter is a quality of implementation feature, so I had to defer to individual browsers.

  Overall it was a good exercise to summarize the current state of HTML5 video accessibility and I was excited to show off support in Chrome for all the features that we designed into the standard.

• How to Manage User Uploaded Content and Storage

  6 novembre 2014, par Ben

  I’m building an app in PHP (Laravel 4 framework) where a teacher in their account can create a digital lesson for a student. Digital lessons can contain the following content :

  • Text (text from form, .doc, .txt, .pdf, etc.)
  • Images (.gif, .png, .jpg etc.)
  • Video (.avi, .mov, .mp4, etc.)
  • Audio (.mp3, etc.)

  Raw text entered from forms can obviously be stored in the DB against the lesson_id. All the other content formats will need to be stored somewhere, where I can manage and read the files, as well as keep track of the teachers storage total as I plan to bill for storage thresholds at 5GB, 10GB etc.

  On the create a lesson page, content files need to be uploaded as lesson attachments before the lesson is saved, so a teacher can visually see all the lessons content, and then hit save to create the lesson instantly.

  Here’s what I’ve come up with :

  1. Upload all lesson file attachments to AWS S3 to the teachers dedicated bucket, before the lesson is created. Add the teachers ID and date time to each filename.

  2. Force all uploaded video / audio files to be converted to .mp4, .mp3, etc. if they are not in an iDevice friendly format or they exceed a file size limit. Use FFmpeg to do this.

  3. When the lesson is saved and created, record the S3 file URL’s against the lesson ID in the DB.

  4. If the lesson has not been created after a specific period of time, run a cron job to check for uploaded S3 files with no lesson and delete them.

  I am unsure what is the best way to solve this problem as user uploaded content management is really new to me.

  What do you think of this approach ? Can you recommend an improved or better way to solve this problem ?

• Matomo Launches Global Partner Programme to Deepen Local Connections and Champion Ethical Analytics

  25 juin, par Matomo Core Team — Press Releases

  Matomo introduces a global Partner Programme designed to connect organisations with trusted local experts, advancing its commitment to privacy, data sovereignty, and localisation.

  Wellington, New Zealand – 25 June 2025 — Matomo, the leading web analytics platform, is
  proud to announce the launch of the Matomo Partner Programme. This new initiative marks a significant step in Matomo’s global growth strategy, bringing together a carefully selected
  network of expert partners to support customers with localised, high–trust analytics services
  rooted in shared values.
  
  As privacy concerns rise and organisations seek alternatives to mainstream analytics solutions, the need for regional expertise has never been more vital. The Matomo Partner Programme ensures that customers around the world are supported not just by a world–class platform, but by trusted local professionals who understand their specific regulatory, cultural, and business needs.
  
  “Matomo is evolving. As privacy regulations become more nuanced and the need for regional
  understanding grows, we’ve made localisation a central pillar of our strategy. Our partners are
  the key to helping customers navigate these complexities with confidence and care,” said
  Adam Taylor, Chief Operating Officer at Matomo.

  Local Experts, Global Values

  At the heart of the Matomo Partner Programme is a commitment to connect clients with local experts who live and breathe their markets. These partners are more than service
  providers—they’re trusted advisors who bring deep insight into their region’s privacy
  legislation, cultural norms, sector–specific requirements, and digital trends.
  
  The programme empowers partners to act as extensions of Matomo’s core teams :
  
  • As Customer Success allies, delivering personalised training, support, and technical
  services in local languages and time zones.

  • As Sales ambassadors, raising awareness of ethical analytics in both public and private

  sectors, where trust, compliance, and transparency are crucial.
  
  This decentralised, values–aligned approach ensures that every Matomo customer benefits
  from localised delivery with global consistency.

  A Programme Designed for Impactful Partnerships

  The Matomo Partner Programme is open to organisations who share a commitment to ethical, open-source analytics and can demonstrate :

  • Technical excellence in deploying, configuring, and supporting Matomo Analytics in diverse environments.
  • Deep market understanding, allowing them to tell the Matomo story in ways that
  resonate locally.
  • Commercial strength to position Matomo across key industries, particularly in sectors with complex compliance and data sovereignty demands.

  Partners who meet these standards will be recognised as ‘Official Matomo Partners’— a symbol of excellence, credibility, and shared purpose. With this status, they gain access to :

  • Brand alignment and trust : Strengthen credibility with clients by promoting their
  connection to Matomo and its globally respected ethical stance.
  • Go-to-market support : Access to qualified leads, joint marketing, and tools to scale their business in a privacy-first market.
  • Strategic collaboration : Early insights into the product roadmap and direct
  engagement with Matomo’s core team.
  • Meaningful local impact : Help regional organisations reclaim control of their data and embrace ethical analytics with confidence.

  Ethical Analytics for Today’s World
  

  Matomo was founded in 2007 with the belief that people should have full control over their data. As the first open–source web analytics platform of its kind, Matomo continues to challenge the dominance of opaque, centralised tools by offering a transparent and flexible alternative that puts users first.
  
  In today’s landscape—marked by increased regulatory scrutiny, data protection concerns, and rapid advancements in AI—Matomo’s approach is more relevant than ever. Open–source technology provides the adaptability organisations need to respond to local expectations while reinforcing digital trust with users.

  Whether it’s a government department, healthcare provider, educational institution, or
  commercial business—Matomo partners are on the ground, ready to help organisations
  transition to analytics that are not only powerful but principled.