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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: Wayne Kisbee on April 18, 2013, 04:46:49 AM

Title: Merging WAV Files in Audacity
Post by: Wayne Kisbee on April 18, 2013, 04:46:49 AM
Hi,

Have recently purchased a new recorder where the WAV files get split at 2gb recording at 24/96.

How do I merge/join/combine the 2 files I have in audacity?

Sorry for the dumb question but I can't figure it out.

Cheers
Title: Re: Merging WAV Files in Audacity
Post by: Duncan on April 18, 2013, 07:59:07 AM
Hi,

Have recently purchased a new recorder where the WAV files get split at 2gb recording at 24/96.

How do I merge/join/combine the 2 files I have in audacity?

Sorry for the dumb question but I can't figure it out.

Cheers

Try opening them both in their own windows then on the first part do a Transport – Skip to end

Go to the second part and Edit – Select – All
Then Edit – Copy

Return to the first part and Edit Past

I've not used Audacity to do this with my recordings but It seems to work when I just tried it

Duncan
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on April 18, 2013, 09:37:29 AM
Thankyou Duncan. Very much appreciated.

The gig files I have just joined were recorded in 24/96 and when I have gone to save the new file by using the export function, I seem to be only able to save as 16 bit?

Is that right?

Cheers

Wayne
Title: Re: Merging WAV Files in Audacity
Post by: vanark on April 18, 2013, 09:41:35 AM
I am old school, so I still use shntool to join my files  - shntool join -n *.wav
Title: Re: Merging WAV Files in Audacity
Post by: Ultfris101 on April 18, 2013, 09:59:01 AM
Thankyou Duncan. Very much appreciated.

The gig files I have just joined were recorded in 24/96 and when I have gone to save the new file by using the export function, I seem to be only able to save as 16 bit?

Is that right?

Cheers

Wayne

When export in Audacity there is an "Options" button or something (not in front of it now) that lets you choose 16 bit WAV, 24 bit WAV, etc. That might be defaulting to 16bit. it will stick to the last one used.

If I recall you select "other uncompressed formats" and then go to the options button. Not the cleanest interface but it works and you can't beat the price!

Sounds like what you're seeing.

And I do NOT, repeat do NOT want to start a debate on sample rate but I found that 96kHz yielded very big files to no clear benefit for ME, especially starting out in this world as I did about a year ago. I record in 24bit/48kHz and find the disk space savings and transfer speed-up worth it. I can't hear a difference and by stopping my recorder between bands when there are multiples at a show I don't hit the 2gb limit as frequently. YMMV of course but something to think about.
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on April 18, 2013, 10:19:53 AM
Hi Ultfris,

Thanks for that, again greatly appreciated.

Re bit rates, its a new recorder so decided to give it a go. Time will tell on that one ha ha.

Thanks again

Wayne
Title: Re: Merging WAV Files in Audacity
Post by: runonce on April 18, 2013, 10:21:00 AM
Thankyou Duncan. Very much appreciated.

The gig files I have just joined were recorded in 24/96 and when I have gone to save the new file by using the export function, I seem to be only able to save as 16 bit?

Is that right?

Cheers

Wayne



And I do NOT, repeat do NOT want to start a debate on sample rate but I found that 96kHz yielded very big files to no clear benefit for ME, especially starting out in this world as I did about a year ago. I record in 24bit/48kHz and find the disk space savings and transfer speed-up worth it. I can't hear a difference and by stopping my recorder between bands when there are multiples at a show I don't hit the 2gb limit as frequently. YMMV of course but something to think about.

Following that train of thought - I'd be inclined to track each file and use first file/last song and second file/first song for the merge. Might have to jigger the filenames a bit...but could be quicker in the end.
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on April 19, 2013, 04:07:42 AM

When export in Audacity there is an "Options" button or something (not in front of it now) that lets you choose 16 bit WAV, 24 bit WAV, etc. That might be defaulting to 16bit. it will stick to the last one used.

If I recall you select "other uncompressed formats" and then go to the options button. Not the cleanest interface but it works and you can't beat the price!

Sounds like what you're seeing.



Sorted, cheers

Wayne
Title: Re: Merging WAV Files in Audacity
Post by: achalsey on April 22, 2013, 04:40:58 PM
Hi,

Have recently purchased a new recorder where the WAV files get split at 2gb recording at 24/96.

How do I merge/join/combine the 2 files I have in audacity?

Sorry for the dumb question but I can't figure it out.

Cheers


How I do it is you can also just open both tracks in the same window, then using the time shift tool (the joined arrows pointing left and right in the "tools" tool bar) drag the second track up to the end of first one and connect them.  They should snap together if you put the beginning of the second track to end of the first.  Then just click the little black bar that shows up at the tracks are merged seamlessly together.
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on April 25, 2013, 11:48:07 AM
Thanks alchalsey.

Another question, what's the best way to split the files into tracks?
Title: Re: Merging WAV Files in Audacity
Post by: runonce on April 25, 2013, 11:56:29 AM
Move your cursor to where you want a break.

Ctrl+B

Then File>Export Multiple
Title: Re: Merging WAV Files in Audacity
Post by: dnsacks on April 25, 2013, 01:21:21 PM
splitting tracks -- if running a pc, I still find this easiest to do in cdwave (cdwave.com)
Title: Re: Merging WAV Files in Audacity
Post by: achalsey on April 25, 2013, 02:26:08 PM
Thanks alchalsey.

Another question, what's the best way to split the files into tracks?

Highlight the area that you want to be a track and like runonce said, control+B, or command+B if you're on a mac.  You can move the track boundaries by clicking the arrows that face inwards at either end of the new track marker that show up underneath the wave form.  If you click the circle it moves the whole track, not just that side.
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on April 27, 2013, 04:00:09 AM
Thanks guys. Much appreciated as always  ;)
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on April 30, 2013, 03:48:35 PM
I have split the files into tracks using cdwave and tried to save at 44100 16bit but keep getting a message saying unable open conversion stream. Any ideas?
Title: Re: Merging WAV Files in Audacity
Post by: shownomarcy on May 24, 2013, 03:50:59 AM
I have split the files into tracks using cdwave and tried to save at 44100 16bit but keep getting a message saying unable open conversion stream. Any ideas?
And you inserted 24/96 wav files? Maybe Cdwave can export only in the same resolution as imported. Convert to 16/44 first in that case.
I always save the cue sheet in cd wave, that's Very useful! So even if I modify the one wav file later, you can insert the sheet and can split again without double work!
Title: Re: Merging WAV Files in Audacity
Post by: KenH on May 24, 2013, 09:41:54 AM
CDWave only works with 16 bit files (pretty sure).

Once you have the 2 files concatenated in Audacity, you need to convert sample type to 16 bit/44100Hz
In Audacity, Go to Edit -> Preferences.

On the Quality Tab:
Default Sample Rate: 44100 Hz
Default Sample Format: 16-bit
High-quality sample rate converter: High-quality Sinc Interprolator
Real-time dither: None
High-quality dither: Triangle (what I've use in the past).

On the File Formats tab:
Uncompressed Export Format:  WAV (Microsoft 16 bit PCM)

Save.

In the lower left, you see Project Rate.  Set this to 44100.

Then File -> Export as WAV.   This will resample/convert the sample type.

Save the 16/44100 file, and track with CDWave.
Title: Re: Merging WAV Files in Audacity
Post by: sacchini on May 24, 2013, 10:21:53 AM
Which difference compared to Tracks > Resample?

CDWave only works with 16 bit files (pretty sure).

Once you have the 2 files concatenated in Audacity, you need to convert sample type to 16 bit/44100Hz
In Audacity, Go to Edit -> Preferences.

On the Quality Tab:
Default Sample Rate: 44100 Hz
Default Sample Format: 16-bit
High-quality sample rate converter: High-quality Sinc Interprolator
Real-time dither: None
High-quality dither: Triangle (what I've use in the past).

On the File Formats tab:
Uncompressed Export Format:  WAV (Microsoft 16 bit PCM)

Save.

In the lower left, you see Project Rate.  Set this to 44100.

Then File -> Export as WAV.   This will resample/convert the sample type.

Save the 16/44100 file, and track with CDWave.
Title: Re: Merging WAV Files in Audacity
Post by: dnsacks on May 24, 2013, 11:37:53 AM
Slightly OT, but I've been using cdwave to successfully split 24/96 tracks for quite some time -- so I don't think that's the source of your problem.  I then use foobar2000 to resample/dither the tracked 24/96 files (using the SoX plugin) as appropriate.  I find this to be a VERY easy workflow once set up.  foobar2000 can also be used to merge multiple files into a single file -- here's my workflow: 

1) open first 2gb wav in cdwave and track (save tracked files as 24/96 flac). 

2) merge last file cut from first 2gb wav into second 2gb wav using foobar2000

3) open second merged wav in cdwave and track.

4) repeat as necessary

Happy to provide further clarification on my foobar2000 resampling/dithering settings/workflow -- this allows me to keep tracked 24/96 files as masters and create lossy (16/44.1 flac, 48k mp3, 24/48 apple lossless that play on iphone, etc.) versions as needed.
Title: Re: Merging WAV Files in Audacity
Post by: Marshall7 on May 24, 2013, 03:42:16 PM
CDWave only works with 16 bit files (pretty sure).


That's wrong, it works perfectly with 24 bit files.

And if you're going to dither and downsample, there are lots of better quality options that Audacity.
Title: Re: Merging WAV Files in Audacity
Post by: Maudy on June 02, 2013, 12:40:50 PM
Hi,

Have recently purchased a new recorder where the WAV files get split at 2gb recording at 24/96.

How do I merge/join/combine the 2 files I have in audacity?

Sorry for the dumb question but I can't figure it out.

Cheers

Try opening them both in their own windows then on the first part do a Transport – Skip to end

Go to the second part and Edit – Select – All
Then Edit – Copy

Return to the first part and Edit Past

I've not used Audacity to do this with my recordings but It seems to work when I just tried it

Duncan

Hi fellow tapers,

This is my first post, so hello to all.

I'm in a similar situation to motr. I've recently purchased a Roland R-05 recorder, and I'm trying to merge/join the files together. I recorded in 24/96 and the recording was split into 3 parts. I've followed Duncan's instructions, that seemed to have worked for motr, but I'm encountering a strange problem. After following the above instructions and waiting for the file to save, I'm left with a 4.61gb file that is only the first 18 mins 59 secs of the recording, the concert was 2 hours 15 mins.

I then went to the faq on Audacity and followed these instructions :-

How do I combine two files into one longer file?

Follow these steps to splice two files together:
1. Import both files into Audacity
2. Select the second one by clicking above the Mute/Solo buttons on its Track Control Panel
3. Choose Edit > Find Zero Crossings
4. Choose Edit > Remove Audio > Cut
5. Place the cursor at the end of the first track by clicking in it then pressing K
6. Choose Edit > Paste.

You can press the green "Play" button to hear the result, and use the File > Export... command to save it as an audio file.


This worked for the first 2 parts, but then when I tried to join part 3 the file I saved reverted back to the above mentioned 4.61gb file at 18 min 59 secs long. Very crazy, but I guess I'm making an error somewhere along the line.

Thanks in advance for any help. I'm feeling very frustrated at the moment. :)
Title: Re: Merging WAV Files in Audacity
Post by: dnsacks on June 03, 2013, 11:23:32 AM
I believe the 4.61gb file size problem you're running into is being caused by a wav file header's inability to recognize a wav file bigger than 4.61gb in size. 

Can you split the combined file in logical places (i.e. track it or split it by sets) so that you can chop the very end of the combined part 1&2 file off and attach part 3 to that?
Title: Re: Merging WAV Files in Audacity
Post by: Maudy on June 07, 2013, 11:28:01 AM
That sounds like a solution. I will give that a go.

Thanks

Lee
Title: Re: Merging WAV Files in Audacity
Post by: Ekib on June 20, 2013, 03:19:26 AM
Thanks alchalsey.

Another question, what's the best way to split the files into tracks?

Highlight the area that you want to be a track and like runonce said, control+B, or command+B if you're on a mac.  You can move the track boundaries by clicking the arrows that face inwards at either end of the new track marker that show up underneath the wave form.  If you click the circle it moves the whole track, not just that side.

I did that . However , it still saves the file as one track .
How can I save the seperate area's that I have highlighted ( and used control b ) . For example I have highlighted 4 area's . How can I save them into 4 seperate tracks .
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on June 20, 2013, 05:30:11 AM
Thanks alchalsey.

Another question, what's the best way to split the files into tracks?

Highlight the area that you want to be a track and like runonce said, control+B, or command+B if you're on a mac.  You can move the track boundaries by clicking the arrows that face inwards at either end of the new track marker that show up underneath the wave form.  If you click the circle it moves the whole track, not just that side.

I did that . However , it still saves the file as one track .
How can I save the seperate area's that I have highlighted ( and used control b ) . For example I have highlighted 4 area's . How can I save them into 4 seperate tracks .

If you separate into individual tracks then click file and export multiple iirc. Sure thats what I do.
Title: Re: Merging WAV Files in Audacity
Post by: Ekib on June 20, 2013, 05:41:53 AM
Thanks alchalsey.

Another question, what's the best way to split the files into tracks?

Highlight the area that you want to be a track and like runonce said, control+B, or command+B if you're on a mac.  You can move the track boundaries by clicking the arrows that face inwards at either end of the new track marker that show up underneath the wave form.  If you click the circle it moves the whole track, not just that side.

I did that . However , it still saves the file as one track .
How can I save the seperate area's that I have highlighted ( and used control b ) . For example I have highlighted 4 area's . How can I save them into 4 seperate tracks .

If you separate into individual tracks then click file and export multiple iirc. Sure thats what I do.

So you say you simply save each file manually ? Or can you do all at once ?
Thanks !
Title: Re: Merging WAV Files in Audacity
Post by: Wayne Kisbee on June 20, 2013, 08:13:53 AM
It should do it all in a few clicks Ekib. Once you have split into tracks, the export multiple means it will be saved by doing the commands just once.