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Begin forwarded message: Date: Mon, 5 Nov 2007 07:27:21 -0500 From: "Evgueni Tsygankov" <eugenet@rusmex.com> To: "Jean-Marc Valin" <jean-marc.valin@usherbrooke.ca> Cc: speex-dev@xiph.org Subject: RE: [Speex-dev] WaveIn/WaveOut and Speex Again, thank you for helping me. I know this might seem like a trivial matter to you and other experts in the field, but believe me, there are a...

...I was just not sure (and still am) how to translate the Char* audio stream generated by WaveIn to a format that can be understood by Speex. Would using speex_decode_int and speex_encode_int instead of speex_decode and speex_encode be the answer? Thank you, Evgueni Tsygankov www.sqlanswers.com www.rusmex.com -----Original Message----- From: Jean-Marc Valin [mailto:jean-marc.valin@usherbrooke.ca] Sent: Sunday, November 04, 2007 9:33 PM To: Evgueni Tsygankov Cc: speex-dev@xiph.org Subject: Re: [Speex-dev] WaveIn/WaveOut and Speex I'm not sure what input/output format you're trying to use,...

...-bit samples, then two Chars would describe a sample, and so on. My question is on how to deal with Speex output -- if I get a float or a short from Speex' decode function, how does it map to audio samples described above? Thank you for your support, Evgueni Tsygankov www.sqlanswers.com www.rusmex.com -----Original Message----- From: Jean-Marc Valin [mailto:jean-marc.valin@usherbrooke.ca] Sent: Sunday, November 04, 2007 10:26 PM To: Evgueni Tsygankov Cc: speex-dev@xiph.org Subject: Re: [Speex-dev] WaveIn/WaveOut and Speex > When I was going from Char to float and back looked very wron...

...r using the int or the float version) and do the conversion by hand using proper endianness. To do that, you need to actually figure out how Windows actually interprets its stream of bytes (can't help you on that). Jean-Marc > Thank you, > > Evgueni Tsygankov www.sqlanswers.com www.rusmex.com > > > -----Original Message----- From: Jean-Marc Valin > [mailto:jean-marc.valin@usherbrooke.ca] Sent: Sunday, November 04, > 2007 9:33 PM To: Evgueni Tsygankov Cc: speex-dev@xiph.org Subject: > Re: [Speex-dev] WaveIn/WaveOut and Speex > > I'm not sure what input/...

Hello, I know my question has been asked before because I spent the last week searching the web for how to use Speex in combination with WaveIn/WaveOut and I ran into a few posts, but none of them answer the question. There is still a lot of confusion how to use WaveIn/WaveOut and Speex by junior developers such as myself. Even after examining code for SpeexDec and SpeexEnc, I cannot get clear

Hello, I am trying to stream voice data in NB mode between two devices. I just wanted to confirm that my understanding of encoding / decoding workflow is correct. On the sender: (1) Obtain a buffer of 16-bits samples from a microphone (2) Break this buffer into buffers of size 160 and pass each of them to speex_encode_int, then to speex_bits_write. In my understanding, I must do

Thanks for your reply. I changed my code to: if (speex_preprocess_run(preprocess_state, shortPointer) == 1) { speex_encode_int(enc_state, shortPointer, &enc_bits); } In the mobile version of the software, compiled against the mobile build of Speech, I get 1 and 0 based on whether the speech is detected. In the version of the software compiled against the Win32 version of Speex,

This must be a simple issue, but I cannot figure it out. I want to use VAD, but I don't know how to check if the actual frame has voice in it or not. So, in my code, I do: int tmp = 1; speex_preprocess_ctl(preprocess_state, SPEEX_PREPROCESS_SET_VAD, &tmp); speex_preprocess_ctl(preprocess_state, SPEEX_PREPROCESS_SET_DENOISE, &tmp); then later, for each frame