How make audio output mono

D

David Peters (UK)

Is it possible to make an audio source which is mono on ONE
channel and play it as mono through BOTH channels

The audio source may be a WAV or MP3 file which is already stored
on the PC or it may be a line input going into the PC via a
socket.

Maybe there is a software utility which can do this?

----

Similarly is there a way to take a stereo audio file or source and
combine it into mono then and play that through both spakers.


Thank you.
David


------------------------------------------
PC DETAILS:
Running WinXP Pro + SP2.
No sound card. Integrated sound. AC97.
Mainboard chipset is VIA KT266A + VT8235. (Syntax SV266A mobo.)
Onboard sound driver is VIA VT8233/A.
------------------------------------------
 
S

Smoker~

David Peters (UK) said:
Is it possible to make an audio source which is mono on ONE
channel and play it as mono through BOTH channels

The audio source may be a WAV or MP3 file which is already stored
on the PC or it may be a line input going into the PC via a
socket.

Maybe there is a software utility which can do this?
Try Audacity (free)
http://audacity.sourceforge.net/
 
J

Jeff Findley

David Peters (UK) said:
Is it possible to make an audio source which is mono on ONE
channel and play it as mono through BOTH channels

The audio source may be a WAV or MP3 file which is already stored
on the PC or it may be a line input going into the PC via a
socket.

Maybe there is a software utility which can do this?

If your'e recording, record it as a mono WAV or MP3 file to begin with.

Audacity can do this.
Similarly is there a way to take a stereo audio file or source and
combine it into mono then and play that through both spakers.

Audacity can do this. Use it to combine the stereo track into one mono
track and then export as WAV or MP3. I'm sure there is a tutorial on how to
do this.

These may help:

http://comped.brown.edu/handouts/index.php/Audacity

http://www.fceia.unr.edu.ar/lcc/cdr...audacity-manual-1.2/tutorial_common_ed_1.html

http://www.daniel.uklinux.net/tutorial/

If not, there are many Audacity tutorials on the web.

Jeff
 
K

km

Is it possible to make an audio source which is mono on ONE
channel and play it as mono through BOTH channels

The audio source may be a WAV or MP3 file which is already stored
on the PC or it may be a line input going into the PC via a
socket.

Maybe there is a software utility which can do this?

----

Similarly is there a way to take a stereo audio file or source and
combine it into mono then and play that through both spakers.


Thank you.
David


------------------------------------------
PC DETAILS:
Running WinXP Pro + SP2.
No sound card. Integrated sound. AC97.
Mainboard chipset is VIA KT266A + VT8235. (Syntax SV266A mobo.)
Onboard sound driver is VIA VT8233/A.
------------------------------------------
Cool Edit Pro, now named Adobe Audition(and presumably other similar
software) allows you to select a channel and replace it with silence.
You can then select the remaining stereo channel and copy & paste it
into the "silenced" channel.

KM
 
K

kony

Is it possible to make an audio source

yes, solder together a few resistors and such.
A source is a piece of hardware, not a sound, or a data,
etc.
which is mono on ONE
channel and play it as mono through BOTH channels

Why?
Mono sound is not "mono on one channel" with nothing on the
other channel, because mono is not two channels. It seems
obvious enough but somehow the concept was lost?

If you play a mono sound on stereo gear, it should play on
both channels. Why do it and if you did, it would take up
twice as much (data) space.

perhaps the issue is only signal routing. If you have a
mono signal coming from a source, you would not route it to
only the left or right input of a stereo recording device,
it would go to both.

The audio source may be a WAV or MP3 file which is already stored
on the PC or it may be a line input going into the PC via a
socket.

Maybe there is a software utility which can do this?


Do what, exactly? Be very specific about exact things you
want to do, in detail. You have not made clear any scenario
that needs software to manipulate audio channels.
 
K

kony

perhaps the issue is only signal routing. If you have a
mono signal coming from a source, you would not route it to
only the left or right input of a stereo recording device,
it would go to both.

<snip>

What I wrote above could be misleading. it would produce
left and right channels but it isn't so useful because there
is no need for left and right channels that record the same
signal, it should simply be recorded in mono.
 
D

David Peters (UK)

yes, solder together a few resistors and such.
A source is a piece of hardware, not a sound, or a data,
etc.

I believe you are thinking of a source only as something which is fed
into the PC taken as a whole.

However I am thinking of a source as the signal which is fed into the
PC's mixer software and this may come from a WAV which is already
stored on the PC's HDD.


Why? Mono sound is not "mono on one channel" with nothing on the
other channel, because mono is not two channels. It seems
obvious enough but somehow the concept was lost?

I disagree. Or maybe I don't. Your definition of mono is that which
is seen by the PC as incoming.

However my definition of mono is that which seen by the external
device which it provides to the PC. As the device in this case is
not a stereo device then it has no concept of a second channel and it
does not attempt to fill that channel with a duplicate signal. This
duplicate would be the Right channel as far the PC is concerned on
account of the left channel being associated with the tip of a 3.5 mm
jack and this will be the only signal contact.


If you play a mono sound on stereo gear, it should play on
both channels. Why do it and if you did, it would take up
twice as much (data) space.

The source is a recording from a "voice note taker" and in this sort
of instance there is no need (or option) for the signal to be in
stereo.

perhaps the issue is only signal routing. If you have a
mono signal coming from a source, you would not route it to
only the left or right input of a stereo recording device,
it would go to both.

See above. If the jack plug is a mono jack plug then it would go
only to one channel (the left one) of the PC.

In fact in my case there are other instances when I might use a
stereo jack plug going into the PC but as I am using ad-hoc cables
for the audio then only one of the two channels would contain a
signal. In this case I might feed in the right channel only on
account of which wires on the stereo jack plug have been chosen.

Do what, exactly? Be very specific about exact things you
want to do, in detail. You have not made clear any scenario
that needs software to manipulate audio channels.

The utility I am looking for would take the left only mono signal
which the PC receives as input and create a two channel signal which
the applications downstream from that would see as mono.

It may be that a software utility can not work due to the sound
architecture on my PC. I don't know. There doesn't seem to be
anything I can do on XP's "Sounds & Audio Devices Properties" (cpl)
or the mixer (sndvol32.exe) nor on my add in C-Media Audio control
panel. I figure it cannot have been too hard to have a few buttons
in an application to let me select which input channel is to be
"applied" to both of the PC's audio channels.

It may be that a good hardware guy can tell me that shorting left and
right signal leads on the 3.5 mm jack going into mic input will have
the effect of causing the single channel feed to the line input
socket to be divided across both channels in the PC. And maybe the
same is true for a signal coming into the mic input and shorting the
signal leads of the line input.


David

------------------------------------------
PC DETAILS:
Running WinXP Pro + SP2.
No sound card. Integrated sound. AC97.
Mainboard chipset is VIA KT266A + VT8235. (Syntax SV266A mobo.)
Onboard sound driver is VIA VT8233/A.
------------------------------------------
 
K

kony

I believe you are thinking of a source only as something which is fed
into the PC taken as a whole.

I'm thinking of it as a source, what "source" means. You
are misusing a term.

However I am thinking of a source as the signal which is fed into the
PC's mixer software and this may come from a WAV which is already
stored on the PC's HDD.

Then you need another term, because "source" is already
taken. It is a standardized audio term which, due to it's
fixed meaning in the same genre, can't very well be reused
to mean something else. If you mean a signal, channel or
track, they are not sources.


I disagree. Or maybe I don't. Your definition of mono is that which
is seen by the PC as incoming.


No, it isn't. I've snipped out the rest because it has no
useful purpose, nor does this misinterpretation you keep
persisting in following.

Your source is outputting mono, you only need to record a
mono signal. You do not need to record a stereo signal.
You do not need to try to artificially create a stereo
signal.

I suspect your confusion all started out because you
recorded in stereo, from two input channels when you didn't
have a stereo source, so when the right channel (which
shouldn't exist because it shouldn't have been a stereo
recording) is played back, that results in only the left
channel having the signal.

The problem is not that it was only recorded on one channel,
it's that you recorded the 2nd channel at all! The problem
is recording in stereo when the source wasn't outputting
stereo. If you had recorded in mono, it would have been
fine.
 
K

kony

The problem is not that it was only recorded on one channel,
it's that you recorded the 2nd channel at all! The problem
is recording in stereo when the source wasn't outputting
stereo. If you had recorded in mono, it would have been
fine.


If you need to repair some recordings to get rid of the
empty second channel, convert them into mono, OR if you just
want to do what you had mentioned for kicks (since there is
no need to do it with any further recording events), any
median featured audio editing software can do this, it is a
fairly basic feature set of any software more elaborate than
a playback or recording only, oriented utility. Someone had
mentioned Audacity previously, it is free so no harm in
seeing whether you like the user interface.
 
D

David Peters

I'm thinking of it as a source, what "source" means. You
are misusing a term.

No I am not. Just because you don't use the term the way I am using
it does not mean my use is incorrect. In fact it means that your use
is too rigid to embrace alterative equally valid uses.

Then you need another term, because "source" is already
taken. It is a standardized audio term which, due to it's
fixed meaning in the same genre, can't very well be reused
to mean something else. If you mean a signal, channel or
track, they are not sources.

I think if I have a hard drive with a WAV file on it and I feed the
WAV file into the XP mixer alongside alterative sources such as Line
Input and Mic Input then it can be fairly called a source. if it
help you then think of the hard drive being outside the PC box and
powered from an independent sopurce such as HDDs from people like
lacie. I call that a source.


No, it isn't. I've snipped out the rest because it has no
useful purpose, nor does this misinterpretation you keep
persisting in following.

Your source is outputting mono, you only need to record a
mono signal. You do not need to record a stereo signal.
You do not need to try to artificially create a stereo
signal.

I take my tape recorder, which is mono, and I store the audio signal
from the tape recorder on the PC on one channel of a stereo signal.
And this is where the problem originates .

The signa was mono as seen by the tape recorder as it left the tape
recorder but when it enters the PC it is one channel of a stereo
pair.

I suspect your confusion all started out because you
recorded in stereo, from two input channels when you didn't
have a stereo source, so when the right channel (which
shouldn't exist because it shouldn't have been a stereo
recording) is played back, that results in only the left
channel having the signal.

That is what I did but there is no confusion because the recording
utlity I have available will only record on one channel. Hence my
request for something which will take that recording and play it
through both the channels of the the sereo replay. See mt original
post.

The problem is not that it was only recorded on one channel,
it's that you recorded the 2nd channel at all! The problem
is recording in stereo when the source wasn't outputting
stereo. If you had recorded in mono, it would have been
fine.

I agree but if the utlity does not permit it then I post to the
Usenet and ask "Is it possible to take an audio source which is mono
on ONE channel and play it as mono through BOTH channels".

If that quotation is a struggle for you then think of it like this

"Is it possible to make an audio source which is mono (AND RECORDED
ON ONLY one channel) and play it as mono (IN THE SENSE OF THE SAME
SIGNAL COMING through BOTH channels)?

[I have used capitals to make it easier to see what I have added to
help with the comprehension.]

Hope you get it now.
 
K

kony

No I am not. Just because you don't use the term the way I am using
it does not mean my use is incorrect. In fact it means that your use
is too rigid to embrace alterative equally valid uses.

Sorry but standard terms are not ego-centric. It doesn't
matter what you'd "like" to call something. There is not
alternative equally valid uses, this is the whole core
concept behind standardization of terms, explicitly to avoid
these kinds of issues.


I think if I have a hard drive with a WAV file on it and I feed the
WAV file into the XP mixer alongside alterative sources such as Line
Input and Mic Input then it can be fairly called a source. if it
help you then think of the hard drive being outside the PC box and
powered from an independent sopurce such as HDDs from people like
lacie. I call that a source.

The source in a generalized way might be considered the
"computer" in a general audio context since computers are
separate pieces of equipment nonessential to audio. In a
computing environment, the source is the audio device
itself, the sound card or the (motherboard) integrated audio
subsystem, hardware.

This does not change based upon what you'd "like" to call
them instead. If I "liked" to call a hard drive, a "CPU"
instead, would it be reasonable? Of course not. You just
don't yet realize the same applies.


I take my tape recorder, which is mono, and I store the audio signal
from the tape recorder on the PC on one channel of a stereo signal.

"Store" it?
It would be good to be more specific.

And this is where the problem originates .

A tape recorder with mono, one channel output, should be
connected to one input on the audio device in the PC- the
left channel. It is then recorded in mono, not stereo.



The signa was mono as seen by the tape recorder as it left the tape
recorder but when it enters the PC it is one channel of a stereo
pair.

No, the PC has two channel input. IF you record both
channels as stereo, you have a problem because you don't
have a two channel output from the source.

That is why it is not only pointless, but even in some cases
problematic to record stereo, two channels where there are
not two channels.

Do not record in stereo, it is not a stereo signal(s).

That is what I did but there is no confusion because the recording
utlity I have available will only record on one channel. Hence my
request for something which will take that recording and play it
through both the channels of the the sereo replay. See mt original
post.


No, it is recording both channels but you have signal on
only one.

Read slowly and carefully because I'm NOT going tell you
again this basic necessary fact, the entire answer to your
problem: You are recording in stereo, you are recording two
channels and that is the problem. The second channel is
being recorded without any signal from the source. The only
thing you need to do, should do, is not record in stereo.
"Record in stereo" means your CHOICE of what to do, not what
it does. So, you change the settings in the recording
software. If the software is crude, crippled and has no
such adjustment then pick one of the myriad softwares that
has this basic, common setting.

I agree but if the utlity does not permit it then I post to the
Usenet and ask "Is it possible to take an audio source which is mono
on ONE channel and play it as mono through BOTH channels".

What utility again?

When any normal audio recording (capable) software records a
mono, single channel, it creates a one channel audio file.
That is the goal. When stereo devices play back a one
channel audio file (at least common ones, like a PC), the
mono is output to both "stereo" channels, the left and
right, not only one. The only time the mono is output to
only one of the two channels on a PC is if it was not
recorded as mono but as stereo.

In short, it's not a stereo signal, don't record as stereo.


If that quotation is a struggle for you then think of it like this

"Is it possible to make an audio source which is mono (AND RECORDED
ON ONLY one channel) and play it as mono (IN THE SENSE OF THE SAME
SIGNAL COMING through BOTH channels)?


You need to just do what I told you. It's not going to make
sense to you till you do it, apparently.


[I have used capitals to make it easier to see what I have added to
help with the comprehension.]

Hope you get it now.


I'm not the clueless one here.

You have two problems:

You are choosing to record two channels when you only have
one. You are choosing to ignore standard terms and try to
argue as if you know what you are doing when clearly you do
not- as this is a very basic task.
 
J

Jeff Findley

David Peters said:
I take my tape recorder, which is mono, and I store the audio signal
from the tape recorder on the PC on one channel of a stereo signal.
And this is where the problem originates .

The signa was mono as seen by the tape recorder as it left the tape
recorder but when it enters the PC it is one channel of a stereo
pair.

In your case, the easy solution would have been to attach the output of the
tape recorder to both sides of the stereo input. At home, I could easily do
this with a couple of adapters and an RCA cable. Mono RCA to stereo RCA
adapter (feeds the mono signal from one RCA plug to two RCA jacks), then to
a cable with stereo RCA plugs on one end and a stereo 1/8" plug on the other
(commonly used to connect a PC's sound card to audio equipment).

Another solution is use your existing mono cable and record using Audacity,
setting Audacity to record mono instead of stereo.

Audacity will also convert your existing recordings properly. Just use it
to split the stereo WAV into two tracks, delete the one that's nothing but
silence, then use the export command to export a new WAV of just the mono
track that you kept.
I agree but if the utlity does not permit it then I post to the
Usenet and ask "Is it possible to take an audio source which is mono
on ONE channel and play it as mono through BOTH channels".

If that quotation is a struggle for you then think of it like this

I think everyone but you thinks that your orignial question was (and still
is) poorly phrased.

If you had a mono WAV file, it would play through both channels on the PC
without any special software. What you have is a stereo WAV file with sound
on one side and silence on the other, since you recorded it incorrectly.
You used both a cable and recording software that could not properly handle
the mono signal. If you had just one of these right, it would have sounded
correctly, even though in one case you'd have a WAV that's twice the size of
what you need (i.e. a stereo WAV file with the same sound on left and
right).

Your best solution, short of re-recording everything on the PC properly as a
true mono WAV file, is to edit the (bad) stereo WAV you've got into a WAV
that's mono. Audacity is freeware and there are many Audacity tutorials on
the web.

Jeff
 
K

kony

In your case, the easy solution would have been to attach the output of the
tape recorder to both sides of the stereo input. At home, I could easily do
this with a couple of adapters and an RCA cable. Mono RCA to stereo RCA
adapter (feeds the mono signal from one RCA plug to two RCA jacks), then to
a cable with stereo RCA plugs on one end and a stereo 1/8" plug on the other
(commonly used to connect a PC's sound card to audio equipment).


While I agree a splitter could be used to end up with a mono
signal on two channels, it is best avoided, it will degrade
audio quality.

Typical computer gear (practically everything) has low
quality input coupling capacitors and a typical voltage
divider on the input signal. The caps and resistors are
likely not even well matched. By putting the signal through
them twice (both), it degrades it more. Later dropping one
chanel or mixing them will still be worse than if only one
channel was recorded in the first place, or even recording
both channels as he had been doing (with signal only on the
left) then using an audio editor to just throw out the right
channel.
 
D

David Peters

Sorry but standard terms are not ego-centric. It doesn't
matter what you'd "like" to call something. There is not
alternative equally valid uses, this is the whole core
concept behind standardization of terms, explicitly to avoid
these kinds of issues.

I think you should read that and think of yourself. Think too how
in a chain of components that source and sink will switch as you
go from component to component.

The source in a generalized way might be considered the
"computer" in a general audio context since computers are
separate pieces of equipment nonessential to audio.

That may be true in a general audio context but here I am talking
about component parts and I am talking to people who understand
component parts. None of the groups I have posted to deal with
computers as a single entity.
In a
computing environment, the source is the audio device
itself, the sound card or the (motherboard) integrated audio
subsystem, hardware.

This does not change based upon what you'd "like" to call
them instead. If I "liked" to call a hard drive, a "CPU"
instead, would it be reasonable? Of course not. You just
don't yet realize the same applies.

You could quite easily and legitimately call hard drive a source
of data if you were discussing it in the context on music replay.


"Store" it?
It would be good to be more specific.

Kony, you are a bright lad. There can't be too many possibilities
to think about. For your benefit - I take my mono tape recorder
and I plug in the tape recorders output into the line input of the
PC. I take some software (in my case Claudio) and play the tape
recorder so that Claudio can *store* the sound wave forms coming
from the tape recorder. Claudio can then keep the sound in its
own internal format or export it in MP3 or WAV format.

There. Did you spot the word *store*?

A tape recorder with mono, one channel output, should be
connected to one input on the audio device in the PC- the
left channel. It is then recorded in mono, not stereo.

It is recorded in momo but it is one channel of a stereo pair with
nothing on the other channel.
No, the PC has two channel input. IF you record both
channels as stereo, you have a problem because you don't
have a two channel output from the source.

BINGO. Now go back to the original posting. I would use any such
utility as I was asking for to be able to record the mono coming
into the L channel as mono on the two channel ausio which the PC
defaults to using.

That is why it is not only pointless, but even in some cases
problematic to record stereo, two channels where there are
not two channels.

Do not record in stereo, it is not a stereo signal(s).

That is true but I have got recording which are now single channel
because they were incorrectly recorded in stereo. hence my
request for a util which mixes bith channels into one.
No, it is recording both channels but you have signal on
only one.

Read slowly and carefully because I'm NOT going tell you
again this basic necessary fact, the entire answer to your
problem: You are recording in stereo, you are recording two
channels and that is the problem. The second channel is
being recorded without any signal from the source. The only
thing you need to do, should do, is not record in stereo.
"Record in stereo" means your CHOICE of what to do, not what
it does. So, you change the settings in the recording
software.

I am not quite, er, dumb..
If the software is crude, crippled and has no
such adjustment then pick one of the myriad softwares that
has this basic, common setting.

Now that has to be my prerogative. I would prefer to add a small
utility (see my OP) which would take the signal from one channel
(or both channels for that matter) and mix the signals such that
they appeared in both channels.

Why do you want to give me long and pointless lessons in audio
when I have defined the parameters I can vary and I have asked for
information about a solution within those parameters.

It seems that you just want to quibble that my original tape
recording stored as a WAV file (see above) is not a SOURCE of
audio signal for the PC's mixer and therefore I should not refer
to it as a SOURCE.

What utility again?

See OP. You are losing the thread. And it shows.

When any normal audio recording (capable) software records a
mono, single channel, it creates a one channel audio file.
That is the goal. When stereo devices play back a one
channel audio file (at least common ones, like a PC), the
mono is output to both "stereo" channels, the left and
right, not only one.

Now that is new info for me and one I will thank you for (assuming
it is true!)

So how do I null out the right channel on the recordings of a mono
source which Claudio has recorded as stereo?

From what you say above I infer that the PC will detect the
absence of the R channel (or maybe there is an additional flag
which needs to be set in the WAV) and then the PC will replay the
signal in both speakers.

Personally I don't want to go through all my recordings and do
this and I would much prefer a utility which I could run and which
would simply take one channel of the two channel signal and replay
that through both speakers.
The only time the mono is output to
only one of the two channels on a PC is if it was not
recorded as mono but as stereo.


In short, it's not a stereo signal, don't record as stereo.

You need to just do what I told you. It's not going to make
sense to you till you do it, apparently.

You have two problems:

You are choosing to record two channels when you only have
one. You are choosing to ignore standard terms and try to
argue as if you know what you are doing when clearly you do
not- as this is a very basic task.

Sure is a basic task. And I would like to know if I can get that
basic utility.
 
J

Jeff Findley

David Peters said:
Personally I don't want to go through all my recordings and do
this and I would much prefer a utility which I could run and which
would simply take one channel of the two channel signal and replay
that through both speakers.

It certainly would help if you could do this in batch with a simple GUI.
There are many utilities for audio file conversion. Perhaps this one will
fit the bill?

GX::Transcoder
http://www.germanixsoft.de/index.php

Your suggestion that there ought to be a utility that would play the left
side of a WAV on both sides of a sound card is more than a bit silly. I
know of no utility that can do this sort of thing. This is like trying to
treat the symptoms of an illness instead of trying to cure the illness.

Jeff
 
K

kony

Kony, you are a bright lad. There can't be too many possibilities
to think about.

Oh how wrong you are. The possiblities are apparently many,
because in those possibilities lies the way you are doing
it, which is causing problems, and the way others do, which
works. The recording software and settings are quite a
combination of variables in themselves.

Your attitude is self defeating and yet I will show one last
bit of mercy and address your issues one last time before
exiting the thread.

That is true but I have got recording which are now single channel
because they were incorrectly recorded in stereo. hence my
request for a util which mixes bith channels into one.

To permanently fix them, pick any audio editor, not
"utility", except that you do not want to "mix both channels
into one", you'll want to drop the right channel entirely
instead of mixing it, then save the WAV. For MP3, I don't
typically do this with MP3 so I cannot tell you which audio
editors can discard a channel and losslessly retain the
original MP3 compression instead of recompressing it (or
whether this additional loss of quality is significant
enough to matter, as often on old tape recorders the quality
isn't high to begin with).

Same would apply for a playback only software, you'd not
want to mix but rather, discard the R channel and play the L
through both.
Why do you want to give me long and pointless lessons in audio
when I have defined the parameters I can vary and I have asked for
information about a solution within those parameters.

I never did want the long and pointless. Quite the
opposite, you started out with misconceptions and ideas
about splitting mono into two channels, now combining them,
now small utilities when you haven't even a basic audio
editor software. All we ever needed was for you to stop
trying to guess your way through the problem and instead
post the concise specifics of exactly what you were doing
(not generic details but specifically what you did in
detail, what YOU did, not an overview of "audio" in general
as you see fit to reinterpret it.).


So how do I null out the right channel on the recordings of a mono
source which Claudio has recorded as stereo?

Pick an audio editing software. Just grab the first one,
you are not doing anything advanced. Audacity is free and
was suggested by the first reply to your post.

From what you say above I infer that the PC will detect the
absence of the R channel (or maybe there is an additional flag
which needs to be set in the WAV) and then the PC will replay the
signal in both speakers.

This is a typical feature of the player software, a default
action, so uncommon to want to change that many players
dont' even allow any other method of channel mapping.
Personally I don't want to go through all my recordings and do
this and I would much prefer a utility which I could run and which
would simply take one channel of the two channel signal and replay
that through both speakers.

"Media Player Classic" will allow playing back your
misrecorded files on both L & R channels if you go into the
configuration menus and select "View"->"Options"->"Internal
Filters"->"Audio Switcher"->"Enable Custom Channel Mapping"
The channel box and checkmarks should be obvious enough.

It will remember the setting. Since this is also
inconvenient for purposes of playback, having to manually
select the player, you might consider giving the misrecorded
files a different filename extension then associating only
that extension(s) with MPC. For example, if it's an MP3,
rename it "audiofile3.mp3screweduprecording"... which is a
joke name but if it were clicked in windows, you then have
the default action to prompt for what you what to open it
with and to set that as the default, but playing back the
rest of the (properly recorded or edited to be corrected
mono) files with something else that isn't set to this
default action.

http://sourceforge.net/project/showfiles.php?group_id=82303&package_id=84358&release_id=403110
 
D

David Peters

It certainly would help if you could do this in batch with a
simple GUI. There are many utilities for audio file conversion.
Perhaps this one will fit the bill?

GX::Transcoder
http://www.germanixsoft.de/index.php

Your suggestion that there ought to be a utility that would play
the left side of a WAV on both sides of a sound card is more
than a bit silly. I know of no utility that can do this sort of
thing. This is like trying to treat the symptoms of an illness
instead of trying to cure the illness.

I think it must sound like that to you and to many others.
However the recordings have nearly all been made and they are, sad
to say, not made in the usual way.

Personally I find that recordng mono by shorting out two stero
leads a very common requirement. And less cdommon is to create
mono from stereo by using exra leads.

So what has been doen has been done. We can't re-invent it. I
must do what I can to deal with it.
 
G

GregS

I think it must sound like that to you and to many others.
However the recordings have nearly all been made and they are, sad
to say, not made in the usual way.

Personally I find that recordng mono by shorting out two stero
leads a very common requirement. And less cdommon is to create
mono from stereo by using exra leads.

So what has been doen has been done. We can't re-invent it. I
must do what I can to deal with it.

If one knew the parameters that made the stereo, I think a reverse
flow would work. Complex and probably impossible otherwise.
Using DSP this may have been done to get the stereo. I
once made a mono to stereo circuit using caps and resistors.
Worked pretty good. If I reversed the frequency and phase components,
I bet I could reverse flow it.

greg
 

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