similar to: implement opus codec

Hi all ! I just learned about the Opus codec and would like to try it out on my NRF52 (Cortex-M4) target.   I've been struggling a bit with the "trival_example.c" setup but repeatedly run into "hard fault" crashes when stepping through the code. Firstly; for a "bare bone" configuration, does the following compiler directives make sense ? UDEFS =

Hi all ! If someone could give me a hint on how to proceed with the following i'd be very happy: I have a test setup on an nrf52832 (Cortex M4) in which I receive audio from a PDM microphone (64 sample frame) and pass it directly to an I2S device i.e. from ISR to ISR. With uncompressed audio this works just fine. Now I try to insert OPUS1.3 in the path but cannot make it work. The

Jean-Marc Valin skrev: > Ghost Wolf a ?crit : >> Hello Mailing List, >> I am a Speex supporter and user that would really like to know how much >> memory Speex uses to decode a 8kHz, 16kHz and 32kHz (primarily the 8kHz) >> and is it possible to use a 1kBytes of RAM to decode a 8kHz stream? (I >> was thinking of the possibility of using a ATmega168 to decode Speex)

Hello everyone. I would like to use the opus codec in the following scenario: the PCM audio signal, coming from bluetooth module is captured by STM32F446 MCU and then decoded by opus codec. However, I don't know where to start to build the opuslib for ARM Cortex-M4. Could someone provide any hints or give any brief guide on this? WBR, Aleksandr -------------- next part -------------- An

Hi people, As I said before: I did the IDCT to run on the FPGA. My friends from university did the Reconstruction routines running on the FPGA. I'm helping with the LoopFilter, and it is almost there. (all VHDL) I did a small profiling of the libTheora running on a Altera Stratix II device: The processor used was the NIOS II with 8Kb of data and instruction cache, branch prediction and

Jean-Marc Valin wrote: >Hi Jamey, > >Really cool to see Speex being ported to the C55xx and I'd be glad to >integrate the changes required in Speex (and the style's fine with me). > > I have the encoder and decoder running now and have verified that the encoder is bit-exact wrt to the fixed-point code running on x86 for the same 30-second audio sample. Encode and

Hi, I'm using the Speex codec on my Blackfin-based board, and plain-C performance is pretty poor. Decoder is OK (something 25 MIPS for wide-band). But Encoder is not (wide-band quality 8, complexity 1): - 162 MIPS with Analog-Devices lib - 128 MIPS with 1.2beta2 (faster but not working) I don't worry that much, as it's not the optimized version, and everything is running in SDRAM.

I'm considering implementing Opus as the codec for an embedded ARM-based battery powered audio system. In the interest of battery life and board footprint I'd like to specify the smallest CPU that can do the job. In some quick testing on Cortex-A8 (a very different core, but at least ISA compatible and hopefully fairly similar to M4 for things like cycle counts and code size) I saw

Am 04.03.20 um 11:16 schrieb Dylan McKay: > > The new are of xmega3 architecture, which is already included. So this > should be simple. > > Where is the information about ISR-vector table, SRAM addresses and so > on stored? > > > At the moment, this is not implemented in LLVM; these details are left > to the frontend. Clang/compiler-rt does not

Thanks! The new are of xmega3 architecture, which is already included. So this should be simple. Where is the information about ISR-vector table, SRAM addresses and so on stored? -- Wilhelm Am 04.03.20 um 11:03 schrieb Dylan McKay: > Hey Wilhelm, > > This should be possible by editing the 'AVRDevices.td' [1]TableGen > definitions to add an entry for the newer chip types.

Robin Getz a ?crit : > On Tue 19 Feb 2008 11:14, Voss, Stefan, AEAV22 pondered: >> I'm trying to integrate your speex codec on our custom Blackfin board and >> without uCLinux. I am using ADI-supplied VisualDSP++ IDE and corresponding >> toolchain. My question is: Is there anybody who ported speex with enabled >> BFIN_ASM to VisualDSP++ ? > > Nope - two

Amit Ashara wrote: > 1. Since the stream I am working with is a mono channel, what should be > the advised page_segments to use. I am using an embedded system so > keeping the flash and SRAM usage are vital for the development. The number of channels has no impact on this at all. > 2. In the OpusTag the is the libopus a mandatory field? Yes.

Theora hardware with LEON3 is runinng!!! My video was too slow, then I discovered that the problem was on LINUX! I don't exactly, but I suppose that the time of LINUX Call systems (like fread()) is the problem. If I don't use the linux (like is done on NIOS), I can to decode much faster than the time of exibition! Now we have two points on software (the hardware is the same,

> -----Message d'origine----- > De : Jean-Marc Valin [mailto:jean-marc.valin at usherbrooke.ca] > Envoy? : dimanche, 14. juin 2009 20:46 > ? : Stephane Lesage > Cc : speex-dev at xiph.org > Objet : Re: [Speex-dev] Resampler saturation > > Just to make sure I understand, the two patches you sent are > two different ways to fix the problem, with the only >

Hi there. We're trying to build a speex decoder for Palm OS (i.e. ARM7). No major problems porting thus far, but when compiling the speex modules with -DFIXED_POINT all the silent parts of the output are replaced with what sounds like high-power white noise. The spoken parts sound great, but all the silent parts in between speaking just sounds like white noise. We're using speex 1.1.6,

> >Actually, you're the first I know using the VisualDSP++ toolchain :-) > I guess that's because speex has pretty big memory footprint. So developers that integrate speex tend to have plenty of RAM and once one has plenty of RAM he could install biggish OS. And between biggish OSes for Blackfin the most popular choice is uCLinux. And ucLinux works best with gnu tools. Something

I've targeted Speex to run under eCos with Thumb interworking using arm-elf-gcc 3.3.3 I'd written a small test case to verifiy the operation: #include <speex/speex.h> void speex_test(void) { SpeexBits bits; unsigned int frame_size; void *enc_state; float *speex_frame; cyg_uint64 t1, t2; int i; speex_frame = (float *)0x00030000; /* Address of Speex data

Jean-Marc Valin wrote: > On mar, 2004-09-14 at 16:31 -0700, wrote: > >>Hi there. We're trying to build a speex decoder for Palm OS (i.e. ARM7). >> >>No major problems porting thus far, but when compiling the speex modules with -DFIXED_POINT all the silent parts of the output are replaced with what sounds like high-power white noise. The spoken parts sound great, but

> -----Message d'origine----- > De : Jean-Marc Valin [mailto:jean-marc.valin at usherbrooke.ca] > Envoy? : lundi, 15. juin 2009 01:30 > ? : Stephane Lesage > Cc : speex-dev at xiph.org > Objet : Re: [Speex-dev] Resampler saturation, blackfin performance > > - are there buffers who could be placed in scratch memory ? > > (I don't see any speex_scratch_alloc

Hi all, I buy a iriver's ifp-880 portable player, it only can play ogg file with bitrate 96kbps-325kbps. I know that the higher bitrate of file, the more cpu cycles to comsume in most case. For beyond 325kbps,I guess the chip (pnx0101) can't realtimely decode. But for ogg file below 96kbps, the cpu performance maybe isn't the bottleneck, and I suspect because of the limitation of