search for: 8bits

An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20040715/b3253d77/attachment.htm -------------- next part -------------- ? Hi, I have some queries: I am using speex in Windows platform. 1. I am having some problem with the speex,for input 8KHz,8bits/sample mono stream i am getting output as 8KHz, 16bits/sample mono stream. I would like to know why 8bits/sample input stream is getting converted to 16bits/sample stream, will this have any effect on the sound clarity,if yes then to what extent and how do i slove this problem. 2. There is hissh...

Hi, I am very fresh man at CODEC part.. I wanna know SPEEX's compression rate.. to say , I tested wav file at 8000 Hz, 8bits to spx file.. I hoped 1/16 compression rate more.. but,, the result was not good for me.. to say example.. I made wav file of 254Kb at 8000Hz , 8bits ...and then encode that file.. the result was that spx file of 33.7Kb is made... so, I though that compression rate is 33.7 / 254 .. about 1/8.....

...1.1.0 directory into flactest (so that the path flac-1.1.0\include and flac-1.1.0\src exists in flactest). The project should then compile as is. All the code is in flactest.cpp. It's pretty basic. You'll have to create a file test_16k8.wav in the pocket pc's temp directory (16KHz, 8bits). Thanks, for helping, Jehan -------------- next part -------------- A non-text attachment was scrubbed... Name: flactest.zip Type: audio/x-zipped-mod Size: 8384 bytes Desc: not available Url : http://lists.xiph.org/pipermail/flac-dev/attachments/20030523/ea124ff0/flactest.bin

...iler/linker/assembler toolset and a simulator/debugger. >From what I've read, LLVM is a good tool to implement a compiler for this proprietary platform, but I have the following questions: - Is there estimation (from your experiences) of the work required to implement a backend for a simple 8bits micro controller architecture (1 men-month, 10 or 100 ?) - Is it possible to create a debugger/simulator (at C and assembler level) with LLVM ? Thanks for your help and advices Regards Guillaume -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm...

Hi, I'm trying to use FLAC (v1.1.0) on a Pocket PC (Toshiba e740). It compiles fine without any warning. When I try to compresse 16bits waves, everything is fine. When I try to compress 8bits waves, I get a audio mismatch error (FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA). Does anyone have had this problem? I can send the project if someone can look at it. Thanks, Jehan

...tandably, __u64, __u32, __u16 is used for them respectively. However, the VMX spec defines that the access rights is 32bits, which includes a 4 bits type, 2 bits dpl, and 1 bit for the present,dpl,db,s,l,g,avl. So why here they are all defined as __u8? It means that, each of them is represented by 8bits? This looks inconsistent with the VMX spec. Hope someone can explain this, thanks! -Jidong

...tandably, __u64, __u32, __u16 is used for them respectively. However, the VMX spec defines that the access rights is 32bits, which includes a 4 bits type, 2 bits dpl, and 1 bit for the present,dpl,db,s,l,g,avl. So why here they are all defined as __u8? It means that, each of them is represented by 8bits? This looks inconsistent with the VMX spec. Hope someone can explain this, thanks! -Jidong

...xamples, and find "B.1 Protocol 1 (Keyboard)" then there's an example of a HID report descriptor that contains both input and output items, using the same report ID and the corresponding reports and their lengths. The descriptor defines items in a single report in the order of input (8bits), input (8bits), output (5bits), input (8bits). The corresponding report examples given show that an input report _only_ contains the input items, and the output report _only_ cotnains the output items. So, in this case, the first input item would be located in the input report at data offset 0,...

Hello Guillaume, > - Is there estimation (from your experiences) of the work required to > implement a backend for a simple 8bits micro controller architecture (1 > men-month, 10 or 100 ?) What is the instruction set of your microcontroller? How rich it is? What is the architecture? Is it RISC-y? -- With best regards, Anton Korobeynikov Faculty of Mathematics and Mechanics, Saint Petersburg State University

...y well. >That part is true, so of course it depends on the application. I guess I >should have added that for most applications, 16 kHz is recommended >instead of 44.1 kHz. My problem is that the speech acquisition is done in Java. On a Mac the only possibility is to use 44.1Khz in 16 or 8bits stereo or mono. I have then not really the choice. On other platform, 16Khz 16bits is used. Alain

Hi ppl, I have audio file recorded at 8kHz, 8bits per sample. I am facing problem with encoding and decoding. I have tried with default programs which comes with Speex. can you please suggest with options or any kind of help. I am trying VOIP application so sending packets on RTP. any help is welcomed... Thanks -- Rahul Ruikar Systems Sof...

On Feb 3, 2018, at 7:19 PM, Russell King wrote: > > Input and Output reports are used for interrupt endpoints rather than > control endpoints. HIDGetItemData() only ever requests feature > report IDs, and requesting non-feature report IDs as feature IDs may > lead to undesirable results and errors. This one made me scratch my head a bit. I don't think it's unreasonable

...elevant, these bits are “unreachable” from the IR point of view. > The backend is supposed to lower the operation in a safe way when it is needed to clear these bit. > > For example if you were to perform some arithmetic operation on these, it is likely that they would get zero extended to 8bits first and this is where the upper bits would be cleared. > > >> The >> smallest mask register on SKX is 8b. This also implies that the >> smallest load/store moves 8b. >> >> We run into problems when we try to optimize ANDs (full test case attached): >> &gt...

First off, most of my information about the integer representation in LLVM is from http://llvm.org/docs/LangRef.html#t_integer and I could use some things cleared up. First, I guess that smaller integer sizes, say, i1 (boolean) are stuffed into a full word size for the cpu it is compiled on (so 8bits, or 32 bits or whatever). What if someone made an i4 and compiled it on 32/64 bit windows/nix/bsd on a standard x86 or x64 system, and they set the value to 15 (the max size of an unsigned i4), if it is still rounded up to the next nearest size when compiled (i8 or i32 or what-not), what if when th...

...iler/linker/assembler toolset and a simulator/debugger. >From what I've read, LLVM is a good tool to implement a compiler for this proprietary platform, but I have the following questions: - Is there estimation (from your experiences) of the work required to implement a backend for a simple 8bits micro controller architecture (1 men-month, 10 or 100 ?) - Is it possible to create a debugger/simulator (at C and assembler level) with LLVM ? Thanks for your help and advices Regards Guillaume -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llv...

Hey guys, I've hit a pretty nasty issue on SKX with ANDs of masks <= 4 bits. In the IR, we represent a 4b vector mask as <4 x i1>. This assumes that the storage container for this type is also 4b, but it's not. The smallest mask register on SKX is 8b. This also implies that the smallest load/store moves 8b. We run into problems when we try to optimize ANDs (full test case

...“unreachable” from the IR point of view. >>> The backend is supposed to lower the operation in a safe way when it is needed to clear these bit. >>> >>> For example if you were to perform some arithmetic operation on these, it is likely that they would get zero extended to 8bits first and this is where the upper bits would be cleared. >>> >>> >>>> The >>>> smallest mask register on SKX is 8b. This also implies that the >>>> smallest load/store moves 8b. >>>> >>>> We run into problems when we try...

...ll be the fact that you would need to make > i24's a legal type in your backend, which as far as I know (unless > something has changed recently), is a _big_ job. I briefly looked > into it at one point, and decided to leave it for another day. > > I am also unsure how hard byte=8bits is backed into Clang. You might > want to ask cfe-dev. > > I hope that helps. > > Johnny > > On Tue, Sep 9, 2014 at 7:41 AM, Matthew Gardiner <mg11 at csr.com> wrote: > > > Hi, > > > > We have some DSP architectures (kalimba) which have 24-bits as...

Hi, We have some DSP architectures (kalimba) which have 24-bits as their "minimum addressable unit". So this means that the sizeof a char (and an int and a short for that matter) is 24-bits. I quickly read the posted link WritingAnLLVMBackend.html but did not see an obvious answer to the following question: Is it possible to write a backend that faithfully represents these

...got back then. Some background first: this issue is for a backend for an 8bit microcontroller with only 8bit regs, however it has a few 16bit instructions that only work with fixed register pairs, so it doesnt allow all combinations of regs. This introduces some problems because if data wider than 8bits is expanded into 8bit operations the 16bit instructions never get selected, also the reg allocator should allocate adjacent regs to form the pairs. The most important 16 bit instruction is data movement, this instruction can move register pairs in a single cycle, doing something like this: mov r25,...