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Live Q&A - Bluetooth LE Audio Revolutionizes Wireless Audio
Colin Ramrattan - STMicroelectronics - Watch Now - Duration: 50:52
Hi megareve,
the Auracast examples are provided in the STM32CubeWBA package for the STM32WBA55G-DK1 Discovery Kit:
- SOURCE Audio Role (TX): STM32Cube_FW_WBA_V1.3.0\Projects\STM32WBA55G-DK1\Applications\BLE\BLE_Audio_PBP_Source
- SINK Audio Role (RX): STM32Cube_FW_WBA_V1.3.0\Projects\STM32WBA55G-DK1\Applications\BLE\BLE_Audio_PBP_Sink
You can download the STM32CubeWBA package here:
https://www.st.com/en/embedded-software/stm32cubewba.html#st-get-software
Hi I am trying to find some examples for auracast for STM32WB55 so I can play on that broadcast feature, but not sure if they are under a different name, can you point me to them ?
Hello,
Please refer to the STM32WBA55 device.
In the cube package STM32Cube_FW_WBA_V1.3.0\Projects\STM32WBA55G-DK1\Applications\BLE
The Bluetooth LE Sink and Source examples are there.
Thank you for the presentation.
When is AN5928 expected to be released?
The AN5928 is already published at st.com:
https://www.st.com/resource/en/application_note/an5928-how-to-build-a-short-range-wireless-application-with-stm32wba-mcus-stmicroelectronics.pdf
Thank you
What distance can be achieved with BLE ?
Hi Davek,
in an open field in line-of-sight using the 1Mbit PHY you can achieve a few hundreds of meters, while using the long-range mode you can even go over a kilometer.
What are the difference in memory usage (RAM and FLASH) between the full and the basic BLE stack ?
Hello Nathan,
Regarding the ram and flash usage, there is an update coming to :
AN5928 which is your reference document for both stacks.
Today we have the following as a guideline but subject to change as fixes and improvements are implemented:
Basicstack_Beacon application: Flash: 116Kbyte, SRAM 14.3Kbyte
Fullstack_Beacon P2P Server application: Flash: 226Kbyte, SRAM 24.1Kbyte
What is the typical audio latency?
In LE Audio the latency is <30ms
very nice
14:11:37 From Bob Fish to Everyone: Hi John, what are your own personal thoughts regarding future security solutions with the threat of cryptographic engines designed using quantum qubit processing devices ... around the corner? 14:12:21 From Shabbir to Everyone: What if a key was to get compromise. How could a replacement be delivered safely. 14:21:23 From Vinicius Pereira to Everyone: About LE audio, how widespread are Bluetooth peers using it? In my company we often find by chance that a peer uses LE audio instead of classic, and it is dificult to find compliant peers to test. Also could it be possible to use one STM32WB as a sink device with a smartphone sharing audio by LE? 14:24:03 From Bob Fish to Everyone: Hi Colin, does it make any sense if there was adaptive latency that would depend on the characteristics of the audio signal itself. Obviously, real-time requires minimal delay but not necessarily everything else! 14:31:11 From Bob Fish to Everyone: (Audio Transmission) Thanks for the reply. Certainly the characteristics of the channel, between the source and the sink, determines the signal delay aka latency however, I was wondering if there were applications out there where latency could be deliberately varied, for capacity optimisation reasons et al ... dependent upon the audio signal itself. 14:31:30 From Gordon to Everyone: Thank you 14:36:30 From Lyden Smith to Everyone: Can the STSAFE be paired with non-STM microcontrollers?
Are there other boards that provide the same functionality, peripherals, and integration as the 2 kits mentioned in the presentation?