similar to: Speex, what container?

The aplication that I am developing is like a sound recorder (goes directly to the soundboard and start capturing the sound and writing the file, using the directsound api). I'm already capable of writing to normal wav files but I wanted to encode the audio with speex to have smaller size (and still good quality). How can I write the wav files with speex content using the ACM codec? (like

But is there any sound player for windows that plays speex in an ogg container? One more question, besides the source code found in the speex site (like speexenc.c) can you tell me where to find source code developed in C++ (using object oriented programing) that makes it easier to write ogg files with speex content? Miguel Gomes -----Mensagem original----- De:

I'm going to use speex to compress sound that was record from a sound board. What container should I use so it will be able to play in some sound player available for windows, ogg or wave? If I choose to use wav container I simple have to put the speex stream into the data chunk of the wave file? I heard that there is a codec to put speex in a wav file so it can be played in windows media

Is there any plugin for windows sound players like winamp or media player to play speex files?(encoded with speexenc, using ogg container) Thanks. Miguel Gomes <p> -------------- next part -------------- A non-text attachment was scrubbed... Name: winmail.dat Type: application/ms-tnef Size: 4146 bytes Desc: winmail.dat Url :

When I use speexenc appplication to encode a wav file and then speexdec to decode it the decoded wav is bigger than the original, why this happens? Thanks. Miguel Gomes <p> -------------- next part -------------- A non-text attachment was scrubbed... Name: winmail.dat Type: application/ms-tnef Size: 2786 bytes Desc: winmail.dat Url :

Using speexenc applicantion (provided in the Speex site) when I try to encode a wav file less than 12,5KHZ in wideband mode it warns that I should do it in narrowband but the time it takes to encode and the final encoded file size are bigger if I use narrowband. The sound quality after decoding seems to be the same. What is the advantage of using narrowband? Thanks. Miguel Gomes

I'm using speex to encode wav files. How does the --bitrate n option (use bit-rate n or lower) afects the quality and time of the encoding? If I don't use that option how speex determines the bitrate to use in encoding? Thanks in advance Miguel Gomes -----Mensagem original----- De: owner-speex-dev@xiph.org em nome de Chris Flerackers Enviada: qui 18-03-2004

I know speex is not supposed to do a great job compressing music, but I've noticed that the new VBR code chokes completely when you try to compress horns. I've placed a particularly offensive example up at http://www.utdallas.edu/~matthias/ . Take a look at a-16m*{ogg,spx}. a.ogg is the first minute of an ogg created from the source media (in 44khz stereo). The rest have been mixed down

Greetings, Yesterday I sent a mail to speex-dev-request@xiph.org to subscribe the mailing list. I got no answer yet but am I already member? Thanks in advance Miguel Gomes P.S. answer to my mail - miguel.gomes@netcabo.pt - cause I don't know if I'm already member of the mailing list. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage:

Take a look at this: peexenc --vbr -V --quality 4 audiodump.wav a.spx Encoding 32000 Hz audio using ultra-wideband (sub-band CELP) mode (stereo) Bitrate is use: 22400 bps (average -1268444817 bps) I'll take a look at what the problem is later today or tomorrow, but if anyone beats me to the bug, let me know before I spend too much cscope time playing with it. Regards, Matthias --

Is there any way to access only the narrowband portion of a wideband stream? I'd like to be able to encode the audio only once, but allow members in a conference to have some rough selection of bandwidth, and allow them to move to a lower-bitrate stream if there is a need to do so. Thanks, Matthias -- Matthias Granberry matthias@utdallas.edu (469) 371-0596 --- >8 ---- List archives:

It looks like I'll need to go further into the guts of speex to do this. I do, however, see some lines in nb_celp.c/nb_decode() that look interesting. I guess I'll play with it. I doubt that it will be terribly clean, though. Jean-Marc: Take a look at line 1195 in nb_celp.c (CVS). It reads "speex_warning ("More than to wideband layers found: corrupted

I'm trying to get asterisk working w/ packet8 (incoming and outgoing) and a dta310 so I can have more control over voicemail. I've looked at the data stream coming from the dta310 and from packet8, but I haven't managed to get the phone to actually place invites through asterisk. On the asterisk end with chan_oss.so, I can make it dial and I hear ringing and the first second of

Use the -V option when encoding and you should get bitrates. "Daniel Vogel" <vogel@epicgames.com> writes: > Could someone post a mapping of quality to bitrate or provide me with a link > where to find this information? > > Thanks, > > -- Daniel, Epic Games Inc. > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage:

does there exist anywhere a useful source version of an ACM for vorbis audio? I've seen the binary one somewhere in Japan, and there's an abandoned project at SourceForge, but I'm having a helluva time building it. I know all the caveats about CBR vs. VBR, ACM/AVI problems etc. but I need it anyway. Thanks in advance - ___ Dan Miller (++,) Founder, CTO, On2.com --- >8 ----

> While on the subject of plug-ins, has anyone written a Speex plug-in > for the Goldwave audio editor? There is an ACM codec for I/O of WAVE files encoded in Speex. ( www.openacm.org ) But there is no plugin to load or save Vorbis Speex files natively, as far as I know. Christian <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage:

I am glad to announce the BETA release of the Speex ACM codec. It is based on the Speex 1.0.1 codec release. An ACM codec enables Windows to create and play back WAVE files containing Speex content. It might also be useful for use with Netmeeting (after some registry hacking. Not tested yet.). I also provide a portable playback tool (speexdec_wav) that handles both the Ogg and WAVE containers.

Hi, As a potential user of the Speex ACMs and DirectShow filters to come I am also curious about how many ACM codecs for Speex there are under development right now. Also, the WAVEFORMATEX structure must be planned so that it is extensible, with backward-compatibility, without having to ring back Microsoft for further WAVE_FORMAT tags. For instance, it is a good idea to put a flexible sub-format

My concern is primarly the 'marketing' aspect. If UCI, or MCF, or any other interface, is adopted by the toolmakers, then that's a perfectly good solution. <p>-----Original Message----- From: Christian HJ Wiesner [mailto:christian.hj.wiesner@web.de] Sent: Tue 11/12/2002 10:10 AM To: theora-dev@xiph.org Cc: Subject: [theora-dev] Re: [vorbis-dev] ACM codec

Aprovados rela??o publicada Joaquim Gomes: Torixor?u: ANA FL?VIA DA SILVA, LUAN MARLLUS MAIA RAULINO, FRANCISCO MARIO ROCHA DE MELO, PEDRO IGOR GARCIA COSTA, JO?O CARLOS MOREIRA DE CARVALHO, DANIEL GUIMARAES CORDEIRO, MARIA IVONEIDE DE OLIVEIRA NASCIMENTO, JESICA FREITAS E SILVA. SILVONEIDE DE O, AYSLAN CORDEIRO DO SANTIAGO, LUCIANA SOARES F. DA SILVA, HARIANNE LEITE DE ALENCAR, REJANE SANTA