--- title: BlueZ-powered Auracast broadcasting on Genio 700 | daily.dev description: Collabora demonstrated an Auracast™ transmitter at Embedded World 2026 using a MediaTek Genio 700 EVK with an MT7921 Bluetooth controller, running Debian... canonical: https://daily.dev/posts/bluez-powered-auracast-broadcasting-on-genio-700-g6egqve5r twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: BlueZ-powered Auracast broadcasting on Genio 700 | daily.dev og:description: Collabora demonstrated an Auracast™ transmitter at Embedded World 2026 using a MediaTek Genio 700 EVK with an MT7921 Bluetooth controller, running Debian... og:url: https://daily.dev/posts/bluez-powered-auracast-broadcasting-on-genio-700-g6egqve5r og:image: https://api.daily.dev/og/posts/G6EgqvE5r.png og:image:alt: BlueZ-powered Auracast broadcasting on Genio 700 og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # BlueZ-powered Auracast broadcasting on Genio 700 **[Collabora Blog](https://daily.dev/sources/collabora)** · 12 min read · 0 upvotes · 0 comments ## Summary Collabora demonstrated an Auracast™ transmitter at Embedded World 2026 using a MediaTek Genio 700 EVK with an MT7921 Bluetooth controller, running Debian Linux, BlueZ 5.86, PipeWire 1.6.0, and WirePlumber 0.5.13 built from source. The post details the full setup: enabling LE Audio in BlueZ, configuring broadcast advertising via bluetoothctl (including a JBL-specific manufacturer data quirk), defining Broadcast Isochronous Streams in WirePlumber with QoS presets and metadata, and orchestrating systemd user services in the correct startup order. A secondary Bumble-based Auracast scanner on a separate USB Bluetooth adapter served as an independent receiver for live metadata visualization. The post also highlights current gaps: complex CLI tooling, lack of desktop UI integration, and BlueZ+PipeWire Bluetooth SIG qualification still expected to extend into 2027. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Why does my JBL Go 4 not connect to my Auracast broadcast even though other receivers work? The JBL Go 4 in Auracast receiver mode requires a specific Harman manufacturer data entry (company ID 87) in the broadcast advertisement. Without it, the speaker silently ignores the broadcast entirely. The fix is to add the manufacturer data — 17 zero-padded bytes followed by 0xdf 0xfd — to the bluetoothctl advertise.manufacturer command for company ID 87. _Engineers debugging Auracast interoperability across vendor hardware track quirks like this on daily.dev._ ### What BlueZ profiles do I need to enable for a full Auracast transmitter on Linux? A full Auracast transmitter requires BlueZ built with BAP, BASS, VCP, MCP, MICP, CCP, CSIP, and TMAP enabled, plus experimental APIs. In /etc/bluetooth/main.conf, set Experimental = true and include the ISO socket UUID in KernelExperimental. You should also verify the controller reports iso-broadcaster in bluetoothctl's management menu, as not all Bluetooth controllers support it. _Developers bringing up Bluetooth LE Audio stacks find stack-specific integration details like these on daily.dev._ ### What does the qos_preset value 48_2_2 mean in a WirePlumber Auracast BIS configuration? The preset 48_2_2 in WirePlumber's bluez5.bcast_source.config corresponds to a Bluetooth Basic Audio Profile setting with a 48 kHz sampling rate, high reliability, and high latency. The naming follows the BAP specification format. The audio_channel_allocation field alongside it uses a bitfield: 0 = mono, 1 = front left, 2 = front right, 3 = stereo (front left + right). _Developers configuring LE Audio streams for embedded products follow spec-level details like this on daily.dev._ ## Similar posts on daily.dev - [Implementing Bluetooth LE Audio & Auracast on Linux systems](https://daily.dev/posts/implementing-bluetooth-le-audio-auracast-on-linux-systems-nlh46igtp) · Hacker News · 0 upvotes · 0 comments - [Artificial Muscles, Boston Dynamics, and More Videos](https://daily.dev/posts/artificial-muscles-boston-dynamics-and-more-videos-ynar2xmxj) · IEEE Spectrum · 0 upvotes · 0 comments - [Mangrove Lithium Cuts Waste in Battery Production](https://daily.dev/posts/mangrove-lithium-cuts-waste-in-battery-production-qw2z3h1ib) · IEEE Spectrum · 0 upvotes · 0 comments - [This Atitan Bluetooth transceiver can bring Auracast to Apple iPhones](https://daily.dev/posts/this-atitan-bluetooth-transceiver-can-bring-auracast-to-apple-iphones-elumdox9o) · The Verge · 0 upvotes · 0 comments - [GridEx Highlights Drone Risks to Power Grids](https://daily.dev/posts/gridex-highlights-drone-risks-to-power-grids-l4txqicqk) · IEEE Spectrum · 0 upvotes · 0 comments --- Tags: [#embedded](https://daily.dev/tags/embedded), [#bluetooth](https://daily.dev/tags/bluetooth) [View this post on daily.dev](https://daily.dev/posts/bluez-powered-auracast-broadcasting-on-genio-700-g6egqve5r) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"BlueZ-powered Auracast broadcasting on Genio 700","url":"https://daily.dev/posts/bluez-powered-auracast-broadcasting-on-genio-700-g6egqve5r","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/bluez-powered-auracast-broadcasting-on-genio-700-g6egqve5r"},"datePublished":"2026-08-11T08:55:49.298Z","dateModified":"2026-08-11T09:36:28.080Z","description":"Collabora demonstrated an Auracast™ transmitter at Embedded World 2026 using a MediaTek Genio 700 EVK with an MT7921 Bluetooth controller, running Debian...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7e698ac0d5dd793f661ede7f03a303af?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/7e698ac0d5dd793f661ede7f03a303af?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Collabora Blog","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Collabora Blog","logo":"https://media.daily.dev/image/upload/s--ZGZ0FjqS--/f_auto,q_auto/v1786438306/logos/collabora?_a=BAMAMicg0","url":"https://daily.dev/sources/collabora"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/bluez-powered-auracast-broadcasting-on-genio-700-g6egqve5r","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"embedded,bluetooth","timeRequired":"PT12M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Collabora Blog","item":"https://daily.dev/sources/collabora"},{"@type":"ListItem","position":3,"name":"BlueZ-powered Auracast broadcasting on Genio 700"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/bluez-powered-auracast-broadcasting-on-genio-700-g6egqve5r#faq","mainEntity":[{"@type":"Question","name":"Why does my JBL Go 4 not connect to my Auracast broadcast even though other receivers work?","acceptedAnswer":{"@type":"Answer","text":"The JBL Go 4 in Auracast receiver mode requires a specific Harman manufacturer data entry (company ID 87) in the broadcast advertisement. 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