Date: Sat, 17 May 1997 07:21:19 +0300 (EEST) From: Petri Helenius <pete@sms.fi> To: fyeung@fyeung8.netific.com (Francis Yeung) Cc: hasty@rah.star-gate.com, multimedia@FreeBSD.ORG Subject: Re: real time mpg3 encoder? Message-ID: <199705170421.HAA06130@silver.sms.fi> In-Reply-To: <9705162137.AA14669@fyeung8.netific.com> References: <9705162137.AA14669@fyeung8.netific.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Francis Yeung writes: > > Pete, > > Thank you for the education. > > Now, I understand. > > You folks are talking about MPEG1 layer 3 audio streams and > players. MPEG1 audio can be encoded in 3 standards called layers. > MPEG2 can also support MPEG1 audio. MPEG2 audio added surround sound > with 5.1 channels. DVD uses MPEG2 video but MPEG2 audio only in > Europe, Dolby AC3 audio in the US. In the past, most MPEG (1 > and 2) players and encoders are for layer 1 and 2. Layer 3 is for > low bit rate encoding and only until recently people are using layer > 3 to stream high quality audio on Internet. > Actually, layer 3 is more of high quality than low bitrate. The low bitrate for the quality kind of comes along. 128kbps layer-3 audio pretty much beats other layer codecs regardless of bitrate. Pete
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199705170421.HAA06130>