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Joe Schmoe
2003-11-26, 12:53
I'm extremely interested in the Squeezebox - and even more so if it supports
the following two features:

1. Gapless playback of FLAC. FLAC and Ogg Vorbis are both gapless formats
(MP3 is not) so I would hope that the Squeezebox would be able to play back
gapless formats gaplessly (no unintended gaps between tracks on a live CD,
for example)

2. 44.1 kHz digital out would really be great. Most cards (read: Creative)
upsample the audio from 44.1 kHz to 48 kHz. I guarantee that you'll get
much better approval from the lossless compression lobby (FLAC power!) if
you can avoid upsampling. Is the digi-out on the Squeezebox 44.1 or 48?

Many thanks.
Erik

dean
2003-11-26, 12:59
The digital out on Squeezebox supports both 44.1 and 48, depending on
the sample rate of the audio being played.

I believe that FLAC and Ogg playback are gapless, but I can't say that
i've tested that specifically.

-dean

On Nov 26, 2003, at 11:53 AM, Joe Schmoe wrote:

> I'm extremely interested in the Squeezebox - and even more so if it
> supports the following two features:
>
> 1. Gapless playback of FLAC. FLAC and Ogg Vorbis are both gapless
> formats (MP3 is not) so I would hope that the Squeezebox would be able
> to play back gapless formats gaplessly (no unintended gaps between
> tracks on a live CD, for example)
>
> 2. 44.1 kHz digital out would really be great. Most cards (read:
> Creative) upsample the audio from 44.1 kHz to 48 kHz. I guarantee
> that you'll get much better approval from the lossless compression
> lobby (FLAC power!) if you can avoid upsampling. Is the digi-out on
> the Squeezebox 44.1 or 48?
>
> Many thanks.
> Erik
>
>

seanadams
2003-11-26, 13:07
> I'm extremely interested in the Squeezebox - and even more so if it
> supports the following two features:
>
> 1. Gapless playback of FLAC.

YES! It is gapless. In fact, with PCM streaming there is no framing of
the data at all, so it's hard to put a gap even if you wanted to. We
feed the tracks in a continuous stream so there is no notion of a split
between tracks on the playback side.


> Most cards (read: Creative) upsample the audio from 44.1 kHz to 48
> kHz. I guarantee that you'll get much better approval from the
> lossless compression lobby (FLAC power!) if you can avoid upsampling.
> Is the digi-out on the Squeezebox 44.1 or 48?
>

You'll love this. Squeezebox uses a PLL - sort of an adjustable
oscillator - which can generate practically any sample frequency up to
48KHz we want. So it's not resampled, the output is clocked at exactly
the sample rate of the source.

By the way, the sample rates allowed by the S/PDIF standard at 32KHz,
44.1KHz, and 48KHz. However, I've tested other sampling frequencies
with all kinds of receivers and they seem to be happy with anything you
give them.