search for: stm32f407

Hello Forrest, some years ago i developed a network media player based on a STM32F407ZGT6 (168MHz clock) and opus 1.1. I used just the fixed point code and did no particular optimization on the opus code itself because the performance was already quite good, see figures below. The figures are for real time playback with different frame sizes and various constant bit rates. I didn...

...ot;0" style="font-size: 12px; font-family: 宋体; outline: medium none currentcolor;"><p style="margin:0px;">Dear Developers,</p><p style="margin:0px;"><br></p><p style="margin:0px;">I make a opus 1.2.1 codec build for STM32F407(fixed-point and disable float APIs).</p><p style="margin:0px;">it seems too slow for the VOIP application.</p><p style="margin:0px;"><br></p><p style="margin:0px;">Case 1:<br></p><p style="margin:0px;"&...

Hello Thomas and Amit, Thanks for your notice and the detailed decode performance report. I describe the details of my encode/decode test on STM32F407ZG. A. opus version: latest 1.2.1 (TI: opus 1.1.2) B. KEIL 5.23 (TI: ARM compiler tool chain 5.2.7) C. setup the encoder as the below (fs is the sampling frequency) enc = opus_encoder_create(fs, chans, OPUS_APPLICATION_AUDIO, &opus_err); opus_encoder_ctl(enc, OPUS_SET_BITRATE(fs * 2)); opus_...

Hi everyone, I?m currently trying to use opus on a ST ARM (STM32F407) without any OS (bare metal). The aim of my project is to transmit voice over CAN bus. The main issue I have is that opus fail to allocate memory, the ALLOC macro always return a NULL pointer. I have sure that I have enough free space to allocate buffers. Is there anyone who already try this or h...