Re: [mp3encoder] Masking in LAME
Lame is using a tonality estimation. Tonality can be estimated by using peak detection method (Gpsycho) or predictability (NSpsytune). Takehiro Tominaga wrote: I think gspsycho uses predictability and nspsytune uses peak/avg ratio as tonality. Oups, sorry (lack of attention from me) -- Gabriel Bouvigne www.mp3-tech.org personal page: http://gabriel.mp3-tech.org ___ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
Re: [mp3encoder] Masking in LAME
From: Gabriel Bouvigne <[EMAIL PROTECTED]> Subject: Re: [mp3encoder] Masking in LAME Date: Thu, 20 Nov 2003 13:38:35 +0100 > Lame is using a tonality estimation. Tonality can be estimated by using > peak detection method (Gpsycho) or predictability (NSpsytune). I think gspsycho uses predictability and nspsytune uses peak/avg ratio as tonality. -- Takehiro TOMINAGA // may the source be with you! ___ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
Re: [mp3encoder] Masking in LAME
[EMAIL PROTECTED] wrote: > However, as I am new to the masking stuff, I don't understand how the the > masking thresholds are computed as they are presented in equations. > > Could anyone explain how the thresholds are computed? Are there any references > available for masking of LAME? Lame is using a tonality estimation. Tonality can be estimated by using peak detection method (Gpsycho) or predictability (NSpsytune). The tonality estimation controls the ammount of masking. Regards, -- Gabriel Bouvigne www.mp3-tech.org personal page: http://gabriel.mp3-tech.org ___ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
[mp3encoder] Masking in LAME
Hi, I am a undergraduate student from the Univeristy of Hong Kong. I am doing a project on the use of psychoacoustics in LAME focusing on masking. By reading the LAME's psymodel.c, I know that the masking thresholds for both short and long blocks, interchannel masking effects and M/S thresholds are computed. However, as I am new to the masking stuff, I don't understand how the the masking thresholds are computed as they are presented in equations. Could anyone explain how the thresholds are computed? Are there any references available for masking of LAME? Thank you very much. Regards, Agnes Tsoi - This mail sent through IMP: http://horde.org/imp/ ___ mp3encoder mailing list [EMAIL PROTECTED] http://minnie.tuhs.org/mailman/listinfo/mp3encoder
