IPB

Welcome Guest ( Log In | Register )

Typical signal to noise ratio of ADPCM
Neuron
post Jan 28 2013, 15:08
Post #1





Group: Members
Posts: 143
Joined: 14-December 12
Member No.: 105171



So, I have decided to return to this forum (despite my little conflict with greynol) and I have kind of a weird question. I would like to know what is the rough SNR of a 4-bit ADPCM recording (IMA and Microsoft). For those curious why I am asking this, well, I like ripping music and sound effects from old games, and I would like know the technical side as well.
Go to the top of the page
+Quote Post
 
Start new topic
Replies
Garf
post Jan 28 2013, 17:51
Post #2


Server Admin


Group: Admin
Posts: 4886
Joined: 24-September 01
Member No.: 13



CompAudio from AFsp can calculate this, IIRC. But this will give you raw SNR, wheras you might be more interested in A-weighted SNR, I'd think.
Go to the top of the page
+Quote Post
Woodinville
post Jan 31 2013, 08:30
Post #3





Group: Members
Posts: 1414
Joined: 9-January 05
From: In the kitchen
Member No.: 18957



QUOTE (Garf @ Jan 28 2013, 08:51) *
CompAudio from AFsp can calculate this, IIRC. But this will give you raw SNR, wheras you might be more interested in A-weighted SNR, I'd think.


SegSNR would even be better.

SegSNR as a function of time shows you when it goofs up, too.


--------------------
-----
J. D. (jj) Johnston
Go to the top of the page
+Quote Post

Posts in this topic
- Neuron   Typical signal to noise ratio of ADPCM   Jan 28 2013, 15:08
- - saratoga   There are various adpcm flavors. Which are you usi...   Jan 28 2013, 16:56
|- - Neuron   QUOTE (saratoga @ Jan 28 2013, 16:56) The...   Jan 28 2013, 20:16
- - Garf   CompAudio from AFsp can calculate this, IIRC. But ...   Jan 28 2013, 17:51
|- - Woodinville   QUOTE (Garf @ Jan 28 2013, 08:51) CompAud...   Jan 31 2013, 08:30
- - kode54   Cool, game soundtrack ripping for the win. I may b...   Jan 29 2013, 06:07
|- - Neuron   QUOTE (kode54 @ Jan 29 2013, 06:07) Cool,...   Jan 29 2013, 11:54
|- - Neuron   QUOTE (kode54 @ Jan 29 2013, 06:07) Cool,...   Jan 29 2013, 16:47
- - Neuron   Here it is:http://www.hydrogenaudio.org/forums/ind...   Jan 29 2013, 12:46
- - saratoga   If you have the lossless and lossy encoded files y...   Jan 29 2013, 17:37
- - Neuron   I have to admit I don't really know how to do ...   Jan 29 2013, 22:42
|- - Neuron   I've added the song in 44 Khz MS ADPCM to the ...   Jan 29 2013, 23:15
||- - bandpass   QUOTE (Neuron @ Jan 29 2013, 22:15) MS AD...   Jan 30 2013, 08:46
|- - Woodinville   QUOTE (Neuron @ Jan 29 2013, 13:42) I hav...   Jan 31 2013, 08:33
- - extrabigmehdi   Well, I used the normalize function of soundforge ...   Jan 30 2013, 00:08
|- - Neuron   QUOTE (extrabigmehdi @ Jan 30 2013, 00:08...   Jan 30 2013, 11:29
|- - extrabigmehdi   QUOTE (Neuron @ Jan 30 2013, 10:29) Thank...   Jan 30 2013, 13:48
- - Neuron   Thank you, but what does "signal: -19 db...   Jan 30 2013, 14:14
|- - db1989   QUOTE (Neuron @ Jan 30 2013, 13:14) ADPCM...   Jan 30 2013, 15:29
|- - extrabigmehdi   QUOTE (Neuron @ Jan 30 2013, 13:14) Thank...   Jan 30 2013, 15:49
|- - Neuron   QUOTE (extrabigmehdi @ Jan 30 2013, 15:49...   Jan 30 2013, 16:07
|- - Neuron   QUOTE (extrabigmehdi @ Jan 30 2013, 15:49...   Jan 30 2013, 16:13
- - pdq   The "dynamic range" of mp3 is actually q...   Jan 30 2013, 15:24
- - Neuron   I did an Audacity convert to mono + match both vol...   Jan 30 2013, 16:00
|- - extrabigmehdi   QUOTE (Neuron @ Jan 30 2013, 15:00) I got...   Jan 30 2013, 17:03
||- - Neuron   QUOTE (extrabigmehdi @ Jan 30 2013, 17:03...   Jan 30 2013, 21:04
|- - saratoga   QUOTE (Neuron @ Jan 30 2013, 10:00) I did...   Jan 30 2013, 18:20
|- - Neuron   QUOTE (saratoga @ Jan 30 2013, 18:20) So ...   Jan 30 2013, 21:24
|- - saratoga   QUOTE (Neuron @ Jan 30 2013, 15:24) QUOTE...   Jan 31 2013, 01:44
|- - Neuron   QUOTE (saratoga @ Jan 31 2013, 01:44) QUO...   Jan 31 2013, 13:44
- - Neuron   That is true, but it does not explain why the ADPC...   Jan 30 2013, 21:10


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 29th December 2014 - 07:16