What is the lowest possible frequency of the audio in a PCM wave file in terms of its sample rate? The highest is sample rate/2.
Lowest possible frequency?
Started by ●December 30, 2003
Reply by ●December 30, 20032003-12-30
Radium wrote:> What is the lowest possible frequency of the audio in a PCM wave file > in terms of its sample rate? > > The highest is sample rate/2.0 Hz. -- % Randy Yates % "...the answer lies within your soul %% Fuquay-Varina, NC % 'cause no one knows which side %%% 919-577-9882 % the coin will fall." %%%% <yates@ieee.org> % 'Big Wheels', *Out of the Blue*, ELO http://home.earthlink.net/~yatescr
Reply by ●December 30, 20032003-12-30
Radium wrote:> What is the lowest possible frequency of the audio in a PCM wave file > in terms of its sample rate? > > The highest is sample rate/2.0 Think about it for a moment.
Reply by ●December 30, 20032003-12-30
On Mon, 29 Dec 2003 23:06:40 -0600, Richard Owlett <rowlett@atlascomm.net> wrote:>Radium wrote: >> What is the lowest possible frequency of the audio in a PCM wave file >> in terms of its sample rate? >> >> The highest is sample rate/2. > >0 > >Think about it for a moment. >Ha ha. Radium's been askin' a lot a questions lately. I wonder who he is and what's he doing. [-Rick-]
Reply by ●December 30, 20032003-12-30
On Mon, 29 Dec 2003 23:06:40 -0600, Richard Owlett wrote:>Think about it for a moment.Hey, my FFT gives me negative output aswell. So the lowest frequency must be -Fs/2 :-) Roman
Reply by ●December 30, 20032003-12-30
Roman Katzer wrote:> On Mon, 29 Dec 2003 23:06:40 -0600, Richard Owlett wrote: > > >>Think about it for a moment. > > > Hey, my FFT gives me negative output aswell. So the lowest frequency must > be -Fs/2 :-)Oh, but the FFT output is periodic, so the lowest frequency is minus infinity. :) -- % Randy Yates % "...the answer lies within your soul %% Fuquay-Varina, NC % 'cause no one knows which side %%% 919-577-9882 % the coin will fall." %%%% <yates@ieee.org> % 'Big Wheels', *Out of the Blue*, ELO http://home.earthlink.net/~yatescr
Reply by ●December 30, 20032003-12-30
Rick Lyons wrote:> On Mon, 29 Dec 2003 23:06:40 -0600, Richard Owlett > <rowlett@atlascomm.net> wrote: > > >>Radium wrote: >> >>>What is the lowest possible frequency of the audio in a PCM wave file >>>in terms of its sample rate? >>> >>>The highest is sample rate/2. >> >>0 >> >>Think about it for a moment. >> > > > Ha ha. > Radium's been askin' a lot a questions > lately. I wonder who he is and what's > he doing.It sure appears that he's not thinking very much (or researching) before he posts these questions. -- % Randy Yates % "...the answer lies within your soul %% Fuquay-Varina, NC % 'cause no one knows which side %%% 919-577-9882 % the coin will fall." %%%% <yates@ieee.org> % 'Big Wheels', *Out of the Blue*, ELO http://home.earthlink.net/~yatescr
Reply by ●December 30, 20032003-12-30
On Tue, 30 Dec 2003 14:11:12 GMT, Randy Yates wrote:>> Hey, my FFT gives me negative output aswell. So the lowest frequency must >> be -Fs/2 :-) > >Oh, but the FFT output is periodic, so the lowest frequency is minus >infinity. :)How right you are! But... there's a WHOLE lot of room for data compression! I wonder why no one else has thought of it. I'm going to make a fortune! ;-) Roman
Reply by ●December 31, 20032003-12-31
Randy Yates <yates@ieee.org> wrote in message news:<DB7Ib.15008$IM3.12777@newsread3.news.atl.earthlink.net>...> 0 Hz.Then why does WaveLab place lower limits in it EQ? 44,100 Hz cannot go under 45 Hz 54,000 Hz cannot go under 55 Hz 400,000 Hz cannot go under 405 Hz 1,000,000 Hz cannot go under 1,005 Hz Why??
Reply by ●December 31, 20032003-12-31
> > How right you are! > But... there's a WHOLE lot of room for data compression! I wonder why no > one else has thought of it. I'm going to make a fortune! ;-) > > RomanI guess negative frequencies hold good in theory. This tells something about, you making a fortune(don't mind,I am just pulling your leg). Partha
