Bit-rate: wideband & narrowband (#ARIJIT BISWAS# )

Subject: Bit-rate: wideband & narrowband From: #ARIJIT BISWAS# <arijit17@xxxxxxxx> Date: Mon, 26 Jun 2006 18:28:17 +0800 This is a multi-part message in MIME format. ------_=_NextPart_001_01C6990B.69E7F292 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear List: =20 This e-mail may not be relevant for this group, but anyway.... =20 I was reading the book, "Speech Coding and Synthesis" by Kleijn & = Paliwal. =20 In page 445, from the table we see that for scalar quantization of the = reflection coefficients, it costs 4 bits per parameter for 1 dB = distortion. =20 Similarly, in page 447, from the table we see that for LAR scalar = quantization, it costs 3.2 bits per parameter for 1 dB distortion.=20 =20 The above numbers are for narrowband speech coding. Could anyone please = let me know what happens to the above numbers (4 bits and 3.2 bits) for = wideband LP based speech coding? It would be great if you could please = suggest some references as well.=20 =20 In case, there are no relevant wideband speech coding paper that = addresses the numbers for the reflection coefficient and LAR = representation, you may also let me know the numbers for the LSF = representation for the narrowband and wideband scenarios.=20 =20 Thanks a lot in advance. =20 Best Regards, ~Arijit ------_=_NextPart_001_01C6990B.69E7F292 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Diso-8859-1">=0A= <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">=0A= <HTML><HEAD>=0A= =0A= <META content=3D"MSHTML 6.00.2900.2912" name=3DGENERATOR>=0A= <STYLE></STYLE>=0A= </HEAD>=0A= <BODY bgColor=3D#ffffff>=0A= <DIV id=3DidOWAReplyText20021 dir=3Dltr>=0A= Dear =0A= List:=0A=  =0A= This =0A= e-mail may not be relevant for this group, but anyway....=0A=  <?xml:namespace =0A= prefix =3D o ns =3D "urn:schemas-microsoft-com:office:office" =0A= /><o:p></o:p>=0A= I was =0A= reading the book, “Speech Coding and Synthesis” by Kleijn = & =0A= Paliwal.<o:p></o:p>=0A=  <o:p></o:p>=0A= In =0A= page 445, from the table we see that for scalar quantization of the =0A= reflection coefficients, it costs 4 bits per parameter for 1 = dB =0A= distortion.<o:p></o:p>=0A=  <o:p></o:p>=0A= Similarly, =0A= in page 447, from the table we see that for LAR scalar = quantization, it =0A= costs 3.2 bits per parameter for 1 dB distortion. = <o:p></o:p>=0A=  <o:p></o:p>=0A= The =0A= above numbers are for narrowband speech coding. Could anyone please let = me know =0A= what happens to the above numbers (4 bits and 3.2 bits) for wideband = LP based =0A= speech coding? It would be great if you could please suggest some = references =0A= as well. <o:p></o:p>=0A=  <o:p></o:p>=0A= In case, there are = no =0A= relevant wideband speech coding paper that addresses the numbers for the =0A= reflection coefficient and LAR representation, you may also let me know = the =0A= numbers for the LSF representation for the narrowband and wideband = scenarios. =0A= <o:p></o:p>=0A=  <o:p></o:p>=0A= Thanks =0A= a lot in advance.<o:p></o:p>=0A=  <o:p></o:p>=0A= Best =0A= Regards,<o:p></o:p><SPAN lang=3DEN-US =0A= style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-ansi-language: = EN-US; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: = EN-US; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; = mso-bidi-font-family: 'Times New = Roman'">~Arijit</DIV></BODY></HTML>=0A= ------_=_NextPart_001_01C6990B.69E7F292--

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DAn Ellis <dpwe@ee.columbia.edu>
Electrical Engineering Dept., Columbia University