Possible to extract audio from audio-only recording?

[madlobster]

I've searched, but can't find an answer to this problem.

I've extracted a audio-only recording from one of DirecTV's music channels as a a .ty file. It plays fine through tyshow. I want to convert it to MP3, but when I try to de-mux it, every program I try crashes.

Any suggestions?

[eastwind]

Originally Posted by madlobster

I've searched, but can't find an answer to this problem.

I've extracted a audio-only recording from one of DirecTV's music channels as a a .ty file. It plays fine through tyshow. I want to convert it to MP3, but when I try to de-mux it, every program I try crashes.

Any suggestions?

First suggestion would be to tell us what you've tried. Obviously only you can know what you've already tried, so no one else will be able to make good suggestions because you might've already tried them.

Second (only if you haven't already tried it), try vsplit--part of the TyTool package. It might be able to demux a .ty stream better than any mpeg tool because it was made to do so.

ew

[cheer]

Originally Posted by eastwind

First suggestion would be to tell us what you've tried. Obviously only you can know what you've already tried, so no one else will be able to make good suggestions because you might've already tried them.

Second (only if you haven't already tried it), try vsplit--part of the TyTool package. It might be able to demux a .ty stream better than any mpeg tool because it was made to do so.

Or you can just use TyTool directly -- I've done that many times. Works like a champ.

[madlobster]

Originally Posted by cheer

Or you can just use TyTool directly -- I've done that many times. Works like a champ.

Both TyTool and vsplit crash with the Windows message that the program "has encountered a problem and needs to close." I've also tried tydemux and hdemux. Neither of them work.

[cheer]

Originally Posted by madlobster

Both TyTool and vsplit crash with the Windows message that the program "has encountered a problem and needs to close." I've also tried tydemux and hdemux. Neither of them work.

Then it sounds like either (A) you have a bad or missing cygwin1.dll (possibly, although I don't know that TyTool uses it for this part; I vaguely remember it's used for the editor), or (B) there's something wrong with the stream. Of course, you're able to play it with TyShow...

Only other thing I can think of is that there's something up on your PC. Doesn't make a lot of sense, but then none of this does...what model DTivo are you extracting from?

[madlobster]

Originally Posted by cheer

Then it sounds like either (A) you have a bad or missing cygwin1.dll (possibly, although I don't know that TyTool uses it for this part; I vaguely remember it's used for the editor), or (B) there's something wrong with the stream. Of course, you're able to play it with TyShow...

Only other thing I can think of is that there's something up on your PC. Doesn't make a lot of sense, but then none of this does...what model DTivo are you extracting from?

It's a RCA DVR40 with 6.2 software. No problem with extracting video programs, just this audio-only one. The cygwin1.dll is just fine.

Perhaps something went wrong with the recording. I'll record a new one and try again. Hopefully I'll get it figured out by Nov. 15...

[tvtyme]

I'm having the same problem. TyTools extraction (TyStream Mode, Standard Mux output, No Audio Transcoding). Then I used vsplit against the ty file:

C:\Program Files\TyTool9r18>vSplit9r16 -t5 -w -a NotTonight.ty test.vid test.aud
Processing 'NotTonight.ty': (10 chunks per tick)

Transcoding Audio: Target -> 48000 @ 192000

Detected Tivo Type: DTivo
Detected Audio Stream Type: MPEG Layer II
Final standardAudioSize = 784
Final standardFrameLength = 0
Final standardAudioDiff = 6480 or 00:00:00.072
First Video PTS: 13:15:21.858

11111 -> Chunk contains neither audio nor video data. Stop here...


ParseChunk: Number of Records: 1 ( 1 0 ff ff)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
===============================================
# 0 0 ( 0): 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

*****DONE with HEADERS!!!!!

I've tried all 8 different "-t" (Audio Transcoding) options. The resulting audio file 'test.vid.m2a' is empty. Any thoughts?

Peace

[ScottB]

I get the same thing......Hughes DVR40 6.2

Detected Tivo Type: Series2
Detected Audio Stream Type: MPEG Layer II
Final standardAudioSize = 592
Final standardFrameLength = 576
Final standardAudioDiff = 2160 or 00:00:00.024
First Video PTS: 00:04:51.023

11111 -> Chunk contains neither audio nor video data. Stop here...


ParseChunk: Number of Records:   1 ( 1  0 ff ff)
                 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
                ===============================================
#     0   0 (       0):  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0

[khmann]

I was having the same problems. I am using a S1 with 3.1.0b tivoapp, patched for noscramble and audio. extraction itself works fine, the problem is splitting audio only .tmf.

I had problems with tyshow 0.14 playing some of the files.
tytool (vsplit 9r16) generates 0 length audio file when splitting.

hdemux 0.12 wants to work - it at least produces an audio file, but it only plays for 5-10 seconds before it skips forward about 5 minutes, plays for another 5 seconds, skips again...

so I disabled the timestamp discontinuity whatever stuff, and OH YEAH BABY!
perhaps this check could become optional in future versions of hdemux?


--- hdemux.c-orig 2005-11-17 08:39:29.000000000 -0500
+++ hdemux.c 2005-11-17 08:39:54.000000000 -0500
@@ -1323,7 +1323,7 @@
}
chunk_parse_rec(p, &type, &major, &time);
if (!i) {
- if (!time_validate(time, lasttime, vstream.ticks_per_chunk)) {
+ if (0) {
if (errcnt++ < CONTINUITY_MAX_ERROR) {
/*
* Be silent about first discontinuity.


and no, I don't have a windows binary for you. sorry. better ask the hdemux folks.



BEFORE:
D:\xtract>hdemux -i bpm-.ty -a test.m2a -v test.m2v
Version 0.12
Source is bpm-.ty
MPEG2 audio at 48kHz, 576 bytes/sync frame
Warning: Skipping chunk 4 due to timestamp discontinuity
Warning: Attempting resync due to repeated time discontinuity
Warning: Skipping chunk 68 due to timestamp discontinuity
Warning: Attempting resync due to repeated time discontinuity
Warning: Skipping chunk 132 due to timestamp discontinuity
Warning: Attempting resync due to repeated time discontinuity
Warning: Skipping chunk 196 due to timestamp discontinuity
637466 audio stream bytes 0 video stream bytes

[makinrain]

Originally Posted by madlobster

I've searched, but can't find an answer to this problem.

I've extracted a audio-only recording from one of DirecTV's music channels as a a .ty file. It plays fine through tyshow. I want to convert it to MP3, but when I try to de-mux it, every program I try crashes.

Any suggestions?

How did you get Directv tivo to record the audio program ?

I have been looking for a way to do this, but can't.

I have 6.2 hacked with tivoweb, tytools, mfs, etc. However when I try to record one of the xm music channels it won't let me.

Thx

[tvtyme]

Originally Posted by makinrain

How did you get Directv tivo to record the audio program ?

I have been looking for a way to do this, but can't.

I have 6.2 hacked with tivoweb, tytools, mfs, etc. However when I try to record one of the xm music channels it won't let me.

Thx

Here's the tivoapp patch:
http://www.dealdatabase.com/forum/sh...4&postcount=38

Peace

[copen]

Yes, but is there a patch for the HR10-250 (HD Tivo)? I would love to be able to record audio only.

[iStormy]

Originally Posted by khmann

so I disabled the timestamp discontinuity whatever stuff, and OH YEAH BABY!

Thanks for the patch. I couldn't figure out how to compile hdemux with Microsoft Visual Studio NET 2003 (and I hate Cygwin with a passion), but it went just fine in Linux, so I'll FTP my files back and forth until it's patched in the mainstream release.

[tvtyme]

Originally Posted by copen

Yes, but is there a patch for the HR10-250 (HD Tivo)? I would love to be able to record audio only.

If you read the entire thread in my previous post, you'll see there's a patch for different Tivo SW versions.

Peace

[bcc]

Originally Posted by iStormy

Thanks for the patch. I couldn't figure out how to compile hdemux with Microsoft Visual Studio NET 2003 (and I hate Cygwin with a passion), but it went just fine in Linux, so I'll FTP my files back and forth until it's patched in the mainstream release.

hdemux compiles in visual studio using nmake (using the Makefile.win makefile), per the instructions. Is nmake missing from the 2003 edition of visual studio?