5 votes
Accepted

How to record wav file in bit depths lower than 8 bit?

Lower bit depths are not easily available simply because they are not looked for commercially, not because of some intrinsic technical difficulty. Audio interfaces or other capturing devices have ...
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5 votes

Protools 10 what is a 32-bit floating point about?

Even floating point numbers can clip and degrade. If I'm mixing, I prefer 64bit floats if available, but I use mostly analogue gear now .. so the mixing happens outside of the digital domain. I do ...
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4 votes
Accepted

Converting from float 32 PCM to signed 16 PCM. Does it matter if I resample before or after the bit depth conversion?

I think the way you currently have the pipeline set-up is the right way to do it. Conversion should be the last block in the chain for sure as this will ensure that any processing artifacts are ...
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  • 8,484
3 votes

What frequency/bit depth were the Beatles recorded at?

The article you read has either been misinterpreted or was monstrously misleading. It is possible that what they were referring to was the fact that the frequency response required from an analogue ...
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  • 8,484
3 votes
Accepted

Bit depth calculation doesn't seem to add up

It's an MP3 file. You can't deduce anything from that other than the fact that it's probably got a bit depth of 16 bits. Try the same exercise but using a WAV file. You will have better luck. MP3 is a ...
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  • 8,484
3 votes
Accepted

Batch convert the bit depth of several audio files from 32 to 16

In Adobe Audition there's a built-in batch processor: Edit > Batch Process
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3 votes

Batch convert the bit depth of several audio files from 32 to 16

Using SoX (Windows, Linux, Mac): cd /where/your/wav/files/are/ mkdir converted for i in *.wav; do sox -S "$i" -b 32 converted/"$i"; done
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  • 184
2 votes

How come floating point audio doesn't clip?

See this and scroll down to "Converting and Using Floating Point Samples". One good reason to convert integer samples to floating point samples in [-1,1] is so that you can mix bit-depths of integer ...
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  • 2,040
2 votes
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Converting 8 bit sound into 2 bit sound

Taking the 2 MSBs should be just what you're after. The way I think of it is that 1 bit (1 or 0) simply tells it the signal is above or below the middle value - and since we're talking audio, that ...
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  • 1,553
2 votes

What is Tidal's 'Master' Quality sample rate and bit depth?

Fi: 44.1khz/16bit (1411kbps) Master: 96khz/24bit (4608kbps) Pitchfork Article Note that only ~30,000 tracks are MASTER quality right now You can tell that Master is available by the M symbol and ...
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  • 292
2 votes

MP3 and bitrate

Your assumption that bitrate = bitdepth * channels * samplerate is true for raw PCM encoded audio. It is not true for bitrate reduction encodings, be it lossless (as flac) or lossy (as mp3). The ...
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  • 2,733
2 votes
Accepted

Is DSD actually practical or just theoretical

Partial answer : Many Analog to Digital converters are actually implemented using a one bit ADC at a high sampling frequency (several MHz). The bitstream is then decimated to more common formats like ...
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  • 2,733
2 votes
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how to list bit depth and bit rate of all. files in a set of nested folders?

SoX (Sound Exchange), the self-described Swiss Army knife of sound processing programs is super-useful for these kind tasks. soxi is the specific tool to list audio file information and on Linux (or ...
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  • 161
1 vote

Understanding microphone and recorder/preamplifier noise specifications

Assuming you know the meaning and usage of decibels well: That image + the accompanying text in the linked source tries to warn that high dynamic range (=the dB difference between the noise floor and ...
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1 vote
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What frequency/bit depth were the Beatles recorded at?

Looking at the specs of the IBM 2401 tape drive from that era, you can see it's at least more complicated than that. The fastest of the 3 models recorded 90 kbyte/s while running the tape at 112.5 ...
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  • 1,558
1 vote

What frequency/bit depth were the Beatles recorded at?

There is no way to compare them because one is analog and one is digital. The way to calculate kbps is: bit depth * sample rate * channels Neither vinyl nor cassettes use bit depth or sample rates. ...
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1 vote

Audio ADC vs uncpecified ADC with similar parameters

It depends on the application I guess. For example, a lot of speech processing (and transmission) nowadays is happening in the range that reaches up to 12 KHz or 16 KHz at maximum. Whether you intend ...
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  • 264
1 vote
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4 bit audio editor?

There doesn't seem to be an already existing tool for your purpose. (At least, I couldn't find one). You might have to build your own tool in your language of choice. Some basic building blocks could ...
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  • 2,733
1 vote

How to transfer 5.1 surround signal from computer to receiver using S/PDIF?

Let's assume that what you call 5.1 Dolby is Dolby Digital (aka ac3 codec). That is what your receiver expects. 1 - Any s/pdif interface can output ac3 bitstream (it is part of the standard). 2 - As ...
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  • 2,733
1 vote
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How can I detect the sample and bit rate coming from my iPhone?

TL;DR: It appears the iPhone 6 supports 24-bit audio and 48 kHz playback. So I found a way to empirically test playback. This first screenshot shows a recording of playback over iPhone USB into ...
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1 vote

How can I detect the sample and bit rate coming from my iPhone?

Unlike some earlier models of iOS devices, the DACs and ADCs in the iPhone 6s and 7 support native sample rates of 48000. You can experimentally test for this by writing an iOS app that configures ...
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  • 161
1 vote

How can I detect the sample and bit rate coming from my iPhone?

Bit depth is specific to certain file types, most notably Wav. Because the standard procedure of a music application is to play a compressed version of a file such as Mp3 or Aiff it throws bit depth ...
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1 vote
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24 bit vs 16 bit for midi samples

In my opinion, the audible difference between 16 and 24 bit audio is minimal at best. I'll do some bullet points because i'm tired: 24 bit does enable the file to carry more data, and therefore have ...
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1 vote

Batch convert the bit depth of several audio files from 32 to 16

I love compressor for this! You can even create Drag and drop areas to Speed up the process of file conversion!
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1 vote

Batch convert the bit depth of several audio files from 32 to 16

The batch processing feature of GoldWave will do the trick.
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  • 906
1 vote

Protools 10 what is a 32-bit floating point about?

Yes... bit depth is about dynamic range, but its more about 'smoothness' of your sampling, and the number of discrete levels you can represent. If you draw a wave signal on graph paper, then draw ...
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1 vote

Protools 10 what is a 32-bit floating point about?

ill try and write a clearer answer than my other one above: floating point numbers can represent a dynamic range of numbers, and can scale to be very large, or very small. this is why they are used ...
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