search for: dbfs

...gt;200dB range. Just for kicks.? [1] It's still unclear to me what that means. Should I think of Vorbis as a floating-point format or a fixed-point format? To make it clearer, let me ask two simple questions: 1) What happens when you encode a floating point WAV that has samples which exceed 0 dBFS. Will it be correctly encoded or truncated at 0 dBFS? 2) What about a floating point file where every sample is below -60 dBFS (or -140 dBFS). Does Vorbis take advantage of the floating point input or will this result in a floating point decode that has a very limited dynamic range? These are not...

Hi Jean-Marc, dBFS means dB relative to digital full scale. In other words: a sine value of -42 dBFS will, on a 16 bit PCM signal, swing between 131 and -131 only (16384 * 10^(-42/20)) So we are far below +/-8000. At the moment, I'm out of ideas how to debug systematically. That even very small rounding errors a...

...[0] value? > > So you already took the scaledown into account? If that's the case, it > looks a bit more odd, but I'm not ready to say that's definitely the > problem. Just curious, does the problem occur if the signal's amplitude > is lower? For a 2000 Hz sine, a -42 dBFs signal still "freaks out", -43 dBFS and below is stable. For such small signals, scaledown will always be 0 (or am I wrong?) > > > P.S.: I only write this e-mail to you but not to the mailing list > > because I don't want to spam the list with details. Is this o.k. for...

I just uploaded two packages to CRAN. shapefiles_0.1.tar.gz - functions to read and write ESRI shapefiles (including dbfs) emme2_0.1.tar.gz - functions to read binary data from an EMME/2 databank data (EMME/2 is a transportation modeling program) Please let me know if you find any bugs or have some suggestions. Thanks. Regards, Benjamin Stabler Transportation Planning Analysis Unit Oregon Department of Transportati...

...annot open the connection" with # warnings: "Too many open files". ? # ---------------- Create a junk file and "save" it for use further into the program --- junk <- 1 MyPathnameA <- "C:\\Documents and Settings\\All Users\\Documents\\SIREPO\\DBFS-0150" connectionX <- paste(MyPathnameA,"junk",sep="\\") outJunk <- file(connectionX, open="wb") save(junk, file=outJunk) close(outJunk) # The next two lines are a repeat from above. They will be useful if you want to run # this scri...

Hi, I'm quite sure we found a bug inside the codec (1.2rc1, wideband mode). It only occurs when speex is compiled with the FIXED_POINT flag. I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single frame loss (i.e. pass a null pointer to speex_decode_int as second parameter for just one frame), the decoder starts to freak out a second later: It produces horrible noise with 0 dBFS. This horrible noise will not vanish until you turn off the input signal. I did some i...

...36 Betreff: [Speex-dev] Fixed Point on wideband-mode: Single Frame loss on 2000 Hz sine causes "freak off" Hi, I'm quite sure we found a bug inside the codec (1.2rc1, wideband mode). It only occurs when speex is compiled with the FIXED_POINT flag. I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single frame loss (i.e. pass a null pointer to speex_decode_int as second parameter for just one frame), the decoder starts to freak out a second later: It produces horrible noise with 0 dBFS. This horrible noise will not vanish until you turn off the input signal. I did some i...

...annot open the connection" with # warnings: "Too many open files". # ---------------- Create a junk file and "save" it for use further into the program --- junk <- 1 MyPathnameA <- "C:\\Documents and Settings\\All Users\\Documents\\SIREPO\\DBFS-0150" connectionX <- paste(MyPathnameA,"junk",sep="\\") outJunk <- file(connectionX, open="wb") save(junk, file=outJunk) close(outJunk) # The next two lines are a repeat from above. They will be useful if you wa...

...gt;><br />> Hi,<br />><br />> I'm quite sure we found a bug inside the codec (1.2rc1, wideband mode). It<br />> only<br />> occurs when speex is compiled with the FIXED_POINT flag.<br />><br />> I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single frame loss<br />> (i.e. pass a null pointer to speex_decode_int as second parameter for just one<br />> frame), the decoder<br />> starts to freak out a second later: It produces horrible noise with 0 dBFS.<br />> This<br />> h...

...int on wideband-mode: Single Frame loss on 2000 Hz sine causes "freak off" > > Hi, > > I'm quite sure we found a bug inside the codec (1.2rc1, wideband mode). It only > occurs when speex is compiled with the FIXED_POINT flag. > > I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single frame loss > (i.e. pass a null pointer to speex_decode_int as second parameter for just one frame), the decoder > starts to freak out a second later: It produces horrible noise with 0 dBFS. This > horrible noise will not vanish until you turn off the input signal...

...ns on windows 98, all file lock operations on network drive are ok. But when i run clipper program on Windows 2000/XP, some strange things happens: 1) It is possible to delete files, what are opened on network share by other clients, files, which are opened EXCLUSIVELY for writing (NTX and some DBFs) 2) When two or more clients edit some dbf concurrently, i've got a database corruption. 3) When i switch from Win XP/2k to Win98 these terrible bugs are disappear Solution: ???? here is my smb.conf: [global] dos charset = cp866 unix charset = koi8-r workgroup = ICPLUS netbios nam...

...uses "freak off" > > > > Hi, > > > > I'm quite sure we found a bug inside the codec (1.2rc1, wideband > mode). It > > only > > occurs when speex is compiled with the FIXED_POINT flag. > > > > I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single > frame loss > > (i.e. pass a null pointer to speex_decode_int as second parameter for > just one > > frame), the decoder > > starts to freak out a second later: It produces horrible noise with 0 > dBFS. > > This > > horrible no...

...the codec (1.2rc1, wideband<br />> > mode). It<br />> >&nbsp; > only<br />> >&nbsp; > occurs when speex is compiled with the FIXED_POINT flag.<br />> >&nbsp; ><br />> >&nbsp; > I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single<br />> > frame loss<br />> >&nbsp; > (i.e. pass a null pointer to speex_decode_int as second parameter for<br />> > just one<br />> >&nbsp; > frame), the decoder<br />> >&nbsp; > starts to fr...

...'m quite sure we found a bug inside the codec (1.2rc1, wideband > > > > mode). It > > > > > only > > > > > occurs when speex is compiled with the FIXED_POINT flag. > > > > > > > > > > I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a single > > > > frame loss > > > > > (i.e. pass a null pointer to speex_decode_int as second parameter for > > > > just one > > > > > frame), the decoder > > > > > starts to freak out a second later: It pro...

...found a bug inside the codec (1.2rc1, >>>>>> wideband >>>>> mode). It >>>>>> only occurs when speex is compiled with the FIXED_POINT >>>>>> flag. >>>>>> >>>>>> I feed in a 2000 Hz sine wave (-15 dBFS). When I simulate a >>>>>> single >>>>> frame loss >>>>>> (i.e. pass a null pointer to speex_decode_int as second >>>>>> parameter for >>>>> just one >>>>>> frame), the decoder starts to freak out...

Dear R user, I am running R under Windows 2000. I am looking for a routine for importing - shape files (ESRI) into R - dbase files (FOXPRO) into R and I am looking for time-space models for description and prediction of Bernoulli-, Binomial- and Poissonvaraibles. Thank's a lot for a reply. Sincerely yours, Ekkehardt Altpeter Swiss Federal Office of Public

Hi List, please consider the following scenario: (and pleast forgive if I have not googled enough but I was unsuccessful to find an app what exactly does what I want) machine A (office) is, where most file changes/downloads etc happen. and it has limited internet access (only proxy possible) Machine B (home) has low bandwidth, is NATed etc. So I would like to use an USB

...cond at -20 dBm0. But this doesn't work and I can't find the original reference. Anyone? 2. In ztmonitor there is a bargraph for setting levels, and there's a patch available in bug 2783 to show numeric values for the levels on tx and rx paths. Has anyone calibrated these numbers to dBfs or dBm0? They look like a straight decimal conversion of the audio bitstream but how literal is this? 3. Levels from app_milliwatt and Playtones are different. app_milliwatt says it's generating a mu-law bitstream but I can't find the code that's actually doing this. What does Play...

Hi List, I noted that compressing music like Merzbow or other Japanese chaotic noise-bands usually results in very low compression rates. That means, that the resulting .flac-file is nearly as big as the initial .wav-file. Other kinds of music get compressed much better. Any explanation? Regards Thomas -------------- next part -------------- A non-text attachment was scrubbed... Name: not

Nicholas is probably right about noise. Another factor would simply be the amplitude of the resulting file. A 275 MB 24-bit file which compresses to 110 MB is probably not very loud. I assume that the average level is somewhat low, with few if any peaks that reach 0 dBFS. FLAC is very good at compressing audio that is not loud. In fact, the quieter the recording, the smaller the FLAC file. I've actually mastered some audio where the final 24- bit FLAC was larger than the original 24-bit FLAC, simply because the amplitude is larger on average after mas...