Re: YES Virginia, 24 kbit/s can sound good (with HE-AAC codec)

Article View: rec.audio.tech

Article #706

#706

From: jhardis
Date: Mon, 01 Oct 2007 03:59

19 lines
2326 bytes

On Sep 30, 5:11 pm, SFTV_troy <SFTV_t...@yahoo.com> wrote:
> HE-ACC + SBR is the codec used in Hybrid Digital Radio, Digital Radio
> Mondiale, and DAB+.

1)  The ACC is an athletic conference within the NCAA.  You mean AAC.

2)  There is no such thing as "Hybrid Digital" radio.  "HD Radio" is a
trademark of iBiquity Digital Corp for their IBOC implementation, and
the "HD" doesn't mean anything in particular.  IBOC has three modes of
operation:  hybrid, extended hybrid, and all digital.  All three are
part of "HD Radio."

3)  "HD Radio" uses a codec known as HDC (a.k.a. "HD Codec").  While
iBiquity has acknowledged that it uses SBR, they have pointedly
declined to discuss whether or not it has any other similarity to HE-
AAC. I doubt that you could cite an authoritative source, but if you
could I would love to know about it.

  - Jonathan

Technical Details

Message-ID: <1191211152.760411.219960@d55g2000hsg.googlegroups.com>

Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!d55g2000hsg.googlegroups.com!not-for-mail

References: <1191186704.893211.271260@50g2000hsm.googlegroups.com>

Show Full Headers

Complete Article Headers

X-Google-Thread: fb1f8,7668c770a84b69d7
X-Google-Thread: 10a749,7668c770a84b69d7
X-Google-Thread: 114aac,7668c770a84b69d7
X-Google-Thread: f7d8a,7668c770a84b69d7
X-Google-Attributes: gidfb1f8,gid10a749,gid114aac,gidf7d8a,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!d55g2000hsg.googlegroups.com!not-for-mail
From:  jhardis <jhardis@tcs.wap.org>
Newsgroups: rec.audio.tech,rec.audio.car,rec.radio.shortwave,ba.broadcast
Subject: Re: YES Virginia, 24 kbit/s can sound good (with HE-AAC codec)
Date: Sun, 30 Sep 2007 20:59:12 -0700
Organization: http://groups.google.com
Lines: 20
Message-ID: <1191211152.760411.219960@d55g2000hsg.googlegroups.com>
References: <1191186704.893211.271260@50g2000hsm.googlegroups.com>
NNTP-Posting-Host: 68.239.118.100
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
X-Trace: posting.google.com 1191211152 22313 127.0.0.1 (1 Oct 2007 03:59:12 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Mon, 1 Oct 2007 03:59:12 +0000 (UTC)
In-Reply-To: <1191186704.893211.271260@50g2000hsm.googlegroups.com>
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/419.3 (KHTML, like Gecko) Safari/419.3,gzip(gfe),gzip(gfe)
Complaints-To: groups-abuse@google.com
Injection-Info: d55g2000hsg.googlegroups.com; posting-host=68.239.118.100;
   posting-account=ps2QrAMAAAA6_jCuRt2JEIpn5Otqf_w0

Reply to Parent Message