2015-08-31 03:12 AM
Hi everybody,
I would record on SD card by the microphone on board, it's possible?I try it using the driver stm32f4_discovery_audio and the sd driver HAL for the Eval, but I failed. Some of you have recorded from the microphone on sd card?Thanks to all, any opinion is appreciated2015-08-31 05:34 AM
Certainly should be viable.
Can't say I've built an audio app for the F4's (no business driver), but I've used the MicroSD card, and BB board a lot.Would probably look to doing 32KB at a time, servicing a ping-pong buffer.2015-08-31 05:52 AM
Thanks for your reply clive.
Do you think that it's possible use the example ''Audio_playback_and_record '' (supply by ST) that record on USB modified for save the record in SD?2015-08-31 09:17 AM
I'd recommend starting with the SDIO+FATFS stuff, get that working properly, where you can read and write files. Then merge in the audio play/record stuff from the other project.
2015-09-01 12:52 AM
Thank you clive for reply.
I have done a project that write a .txt file on SD card (this works), and after I would to record using the driver audio of the project that write on USB, but not works (creates the file .WAV but 0kb). Can I share my project for view? How?Sorry but I am new here2015-09-03 02:35 AM
2015-09-03 02:56 AM
2015-09-10 02:04 AM
nobody one? Now save the file on uSD with consistent size with set recording time, but can not hear anything and I have an error on dma. I share my project and hope that you have time to check it.
Many thanks :) ________________ Attachments : mik123.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006Hzp0&d=%2Fa%2F0X0000000bQ1%2FSn39lzUfhSwM5v_FgJRnw3y50ikWc8Y2OknrWG27pC4&asPdf=false2015-09-23 04:39 AM
Nobody one? :(
2015-09-23 09:38 AM
I know I don't have the bandwidth/resource to work on or debug this.