Please don't send large attachemnts to the list.
Bob MOHAMMED CHALIL wrote: > > Hi, > Yes, For testing psycho you need trasned ears. Some this tips will help you > to do it fast! > > For checking block switching with psycho you can use iso test vector > track27.pcm.( castanets.pcm) > > This is test vectors is nothing but a number of quick transitions. this > transition will make the psycho entropy to go above threshold and block > switching happens. > > The effect of block switching you can be tested visually also. If you have > good block switching there will not be any pre-echo. To test this use LAME > to encode track27 with and without psycho and observe the wav plot, just > before the high peaks. You can see the pre echo. > > Now for testing noise shaping, you can use iso test vectors track 49.pcm or > track50.pcm (nothing but male and female voice with a broad spectrum). They > are really tough vectors. You can't encode then without a good noise > masking. So if you can encode these vectors with bitrate less than or > 128kbps without any artifacts you can say that you have a good psycho:)LAME > is a good example. > > -Chalil > > Attachment :-PE switching profile of a fixed-point encoder(in comparison > with a floating-point encoder) which we have developed is attached. > > -----Original Message----- > From: Robert Hegemann [mailto:[EMAIL PROTECTED]] > Sent: Friday, August 30, 2002 12:56 AM > To: K Mohanarangan, Noida > Cc: [EMAIL PROTECTED] > Subject: Re: [MP3 ENCODER] Did I miss something... ? > > Hi Mohan, > > Am Donnerstag, 29. August 2002 13:54 schrieb K Mohanarangan, Noida: > > hi > > I have a doubt on MP#3 encoder, I have developed ann Audio Encoder for > MP3, > > How can i check wether it encodes correctly? > > to check the integrity of your generated bitstream you could use some tools > like: > maate http://www.cmis.csiro.au/maaate/ > mp3check http://www.0vermann.de/soft/mp3check/mp3check.html > > > I do not think, by checking the quality by Human ear will help me? > > If anyone have idea, please let me Know. > > regards,mohan > > Testing the psychoacoustical abilities of your encoder needs some trained > ears > to do listening tests. ABX'ing against some 'reference' encoder will help > you > to spot weak points of your psy-model. > > Ciao Robert > > _______________________________________________ > mp3encoder mailing list > [EMAIL PROTECTED] > http://minnie.tuhs.org/mailman/listinfo/mp3encoder > > ------------------------------------------------------------------------ > Name: mt_nest_pam_pe1.zip > mt_nest_pam_pe1.zip Type: Zip Compressed Data (application/x-zip-compressed) > Encoding: base64 -- "Things should be described as simply as possible, but no simpler." A. Einstein ////////////////////////////////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ To contribute your unused processor cycles to the fight against cancer: http://www.intel.com/cure \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////////// _______________________________________________ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
