Rarewares, A download site for the latest lossless and lossy audio encoders - mp3, ogg, flac, aac, mpeg4 and more. SRC Comparisons, A site comparing the performance of sample rate converters. Nero Advanced Audio Codec (.aac), no tagging.

• Convert Sample Rate To Frequency

I'm sorry if this is a topic posted elswhere on the forum. I've looked briefly but have run out of time. I'm capturing with and ATI 128 PRO PCI. I'm using MMC 7.2 (I've tried newer versions but without success-the TV function simply refuses to run). The problem is the audio is not captured in 48khz.

I think it is 22.1 or something. What is the best way to resample it (preferably with freeware).

I always convert my audio to AC3. I attempted to do this as well as resample to 48khz with, but the resulting file was significantly out-of-sync with my video. Is there a way to resample and not alter the length of the audio? Can I resample from the mp2 format it is captured in or would I have to first convert to.wav then resample, then convert to AC3? Better sounding than (IMO of course).

Convert Sample Rate To Frequency

Pretty slow, it's the same routines that uses to resample. It's a CLI program, or can be used. If you can read Japanese (bablefish ) compares SSRC and WaveFS44.

With WaveFS44 coming out on top, though slower. There's a link on the page for it, the package is called WCONV04A.LZH Other than SSRC and WaveFS44, there aren't many freeware apps to do a quality job. Most usually just set the new sample rate and apply clipping.

You'll end up with bad sound and different length file. For payware, try.

Thanks, did SSRCHP in 2pass mode. I must say it does sound better than an single pass. Though I still think the edge belongs to waveFS44.

However the speed difference is incredible (2x maybe 3x faster). For perfect results I'll use waveFS44, and when in a hurry looks like SSRCHP will be the way. I used these 2 commands (anything I should change?) ssrchp.exe -rate 48000 -twopass -dither 3 -bits 16 dither 3 is the ath based noise shaping which didn't work the way I thought it should.

And this one ssrchp.exe -rate 48000 -twopass -dither 1 -pdf 1 -bits 16 The latter one produced the better results, with less high frequency noise and clipping. I think SSRC dithering is broken. Yeah, the speed advantage comes at a price. When you turn all of the switches on works fine though. Recommended settings for SSRC are here: They seem to agree with you on SSRC dithering being broken.

From what i gather of WaveFS44.exe (i don't read Japanese), it supports just the three sampling frequencies? Not really a problem if your using with TMPGEnc, its interface only supports the three. 48kHz / 44.1kHz / 32kHz Looks like it was made with TMPGEnc in mind! WaveFS44 seems to do a descent job, but i'll have to continue torture testing it. Looks like i got another toy, Thanks! Code: Main Description=Wavefs44 Folder=wavefs CMDLineProgram=wavefs44.exe Path=C: Documents and Settings disturbed1 Desktop Vid Apps Wavefs44 Page1 Description=Options Item1=Option1 Item2=Option2 Item3=Option3 Item4=Option4 Item5=Option5 Option1 Description=Wav File Input Type=Edit Subtype=File Parameter='%1' Option2 Description=Wav File Output Type=Edit Subtype=File Parameter='%1' Option3 Description=44khz?

Type=Check Parameter=s44 Option4 Description=48khz? Type=Check Parameter=s48 Option5 Description=Precsion? Type=List Description1=1 Parameter1=p1 Description2=2 Parameter2=p2 Description3=3 Parameter3=p3. Those settings are in the 'TMPGEnc.acf' file. wavefs44:resample:param '%s':SrcFileName '%s':DestFileName ' g1' ' p2' ' s32':SamplingFrequency32000 ':SamplingFrequency44100 ' s48':SamplingFrequency48000 I alter the settings all the time, go ahead and chang em.

Shibatch Sample Rate Converter (SSRC) This plug-in cannot be installed using VST but this will only run in command line mode. Let’s illustrate step by step on how to dither using this tool: 1.) Download the software. 2.) The downloaded file is archived using.tgz. This cannot be extracted using your usual Windows unzip functions.

You need software like to extract the file. You may need to perform the extraction twice to get into the final un-archived folders. 3.) You should arrive at the following files after those extractions. Shibatch Dithering Response The performance is better than MDA and Audacity because the dithering noise is distributed at a much higher frequencies where the ears are least sensitive.

In fact, it is equally superior to Waves IDR performance based on the above data. Wavosaur Dithering Feature The light and compact Wavosaur audio editing software offers some dithering features. If you have this software, you can go to Process — Bit depth converter — Convert to 16-bits, set it to dithering 2 bit white noise. Below is the dithered output of the 24-bit sample audio. RDR Dithering Response The dithered noise is distributed at a very high frequency range starting at 16000Hz.

One issue is that there is still substantial dithering noise hovering around the entire audio frequency range (click the image for enlarged view). It would be great if there is none. Sox Dithering Features Another command line utility for audio dithering is sox. This is a highly versatile audio utility that can perform beyond sample rate conversion and dithering. Like SSRC, all commands are to be executed in a DOS prompt (if you are using Windows). Below is the dithered response using the following command: sox raw24bit.wav -b 16 16bitoutput.wav dither -s Where: Raw24bit.wav – is the test 24-bit audio file.b 16 - the bit depth of the source file will be reduced to 16-bits 16bitoutput.wav - this is the output file name. Dither - you will enable the dithering feature.s - you will enable the noise-shaping features of SOX dithering.

Sox Dithering Response Sox have cleaner response to all free dithering plug-in except SSRC. The dithered noise starts distributing at 14 KHz however there is still substantial dithering noise below 1000Hz which is not ideal. Recommendations You have a lot of free dithering plug-in to choose. Depending on your configuration, experience and setup, you can refer to the following recommendations: 1.) If quality for you is very important, then you can use SSRC. This is one of the best performing dithering plug-in based on the above test. Sox dithering are promising; I have not fully tested all combinations of their dithering options. But as far as I’ve observed, you can also use Sox for a variety of audio processing implementations.

2.) If you prefer convenience and you don’t like the command line method at all; you can use LOSER/Assecca that have the best dithering response for VST classification. You can as well pick MDA plug-in. 3.) For most users, using MDA or Audacity built-in dithering might suffice for non-critical implementations.