Re: Linear PCM audio: 44.1 KHz, monaural, 1-bit-per-second

On Mon, 23 Jul 2007 06:59:44 -0400, Randy Yates wrote:

Because the subject of this thread is "linear PCM" and the sample rate
and method of sampling are very pertinent to the definition of linear
PCM.

Subject, smubject. That's not what Radium was asking about.

DSD is linear PCM, after all...

DSD is not linear PCM.

Sure it is. Two quantization levels, one bit per sample.

Linear PCM is defined in [proakiscomm] as follows:

Let x(t) denote a sample function emitted by a source and let x_n
denote the samples taken at a sampling rate f_s >= 2*W, where W is the
highest frequency in the spectrum of x(t). In PCM, each sample of the
signal is quantized to one of 2^R amplitude levels, where R is the
number of binary digits used to represent each sample. Thus the rate
from the source is R*f_s bits/s.

And how is that different from DSD? f_s is >> 2*W, but that's not against
the rules.

Proakis is a fine work, and I agree with him, here. It's not gospel or
axiom, though.

--
Andrew

.

Relevant Pages

  • Re: Currently-Available Highest-Quality Linear PCM Video?
    ... does not equate to "all digital video is PCM" or "PCM is required ... Most digital video uses -- MPEG-layer or some ... other form of compression -- not linear PCM. ... difference between bit-rate and sample-rate. ...
    (sci.electronics.basics)
  • Re: DAB 15x the cost of FM ??????
    ... There was a time when linear PCM was considered optimal. ... differential modulation is such an obvious solution to compress PCM ... The adoption of DAB was the most incompetent technical ...
    (alt.radio.digital)
  • Re: PCM Vs. WAV
    ... Most WAV files are linear PCM. ...
    (rec.audio.pro)
  • Re: what to do with DSD ?
    ... Don't get discouraged by the "PCM uber alles" posturing of the Arny Kruegers ... his normal high quality outboard pre's took care of that. ... I have heard some wonderful sounding DSD recordings, ... converters, or units like the Teac that can serve as external decoders. ...
    (rec.audio.pro)
  • Re: output to sacd
    ... > SACD can only be made by sony affiliated. ... > Again the DSD process is more close to analougue than PCM ...
    (rec.audio.pro)
Loading