Questions tagged [sample-rate]

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2
votes
3answers
42 views

Is it possible to record higher frequencies using multiple microphones sampling in lockstep?

I have only a basic understanding of audio, so this may be somewhat naive, but is it theoretically possible to record frequencies above what microphone allows by using multiple devices sampling in ...
2
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1answer
27 views

What is the real time from sample number?

I apologize if this is the incorrect forum for my question, so please point me to the right place if it doesn't belong here. I thought I understood how SMPTE timecode works, but I cannot seem to ...
0
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1answer
39 views

What frequency / quality for voice clips?

I am looking at making some voice clips for teaching languages. I am using Audacity, but am not sure what settings to use. Many people recommend 44,100Hz for regular music recordings. Is this also the ...
0
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1answer
283 views

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

I have a sound source fed into a GStreamer pipeline for conversion into a more suitable format. The sources are varied but at the end of the pipeline I must have Signed 16-bit PCM (Mono) at 48Khz. ...
0
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1answer
4k views

How to get number of Frames(or Samples) per sec or ms in a audio (.wav or .mp3) file?

some of the terms are but technical but please bare with me I've been observing an audio file under an Python language module the audio has a framerate/samplerate of 44100 per sec or hz and total ...
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1answer
3k views

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

I've been using Hi-Fi as my streaming quality, which I believe is 1440kbps and 16bit depth. Does anyone know where I can find information pertaining to this screenshot?
-2
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1answer
589 views

MP3 and bitrate

So from what I know bitrate is the product of samplerate * bitdepth. But I cant understand this: here for example we try to create an MP3 file selecting bitrate to 320 and sample rate to 44.1khz ...
0
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1answer
244 views

Is 96kHz sampling rate becoming standard for high quality audio?

It seems like recording in a higher sampling rate allows for capturing more headroom and it's overall more spacey audio. At least to my ears. I've switched to 96k and I've becoming more conscious ...
2
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1answer
89 views

Is it possible to fake decimation with FM?

Decimation, also known as sampling rate reduction is a creative effect that creates harsh aliasing, by "resampling" audio signal without an anti-alias filter. It works by performing sample-and-hold, ...
0
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1answer
98 views

Audio recording at wrong speed

I have recorded a speech using my tablet voice recorder. The output is in m4a. When I open the recording (both in the tablet and in PC), the audio is distorted. Put in layman's terms, it's like he's ...
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2answers
1k views

What sample rates can an MP3 file have?

The title says it all. What sample rates are possible for an MP3 file? It is my understanding that there are only a few bits for specifying the sample rate. I know that 44.1 kHz and 48 kHz are ...
2
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1answer
437 views

Pitch-Shifting makes sample sound out of tune

I recorded a guitar sample using a seemingly in tune guitar, and the raw sample sounds in tune also. However, when I pitch shift the sample down by EXACTLY 400 cents (using FL Studios built-in pitch ...
0
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1answer
1k views

Reasamplomatic5000 Change Pitch Without Changing Tempo

I want to assign a voice sample to Reasamplomatic5000 and play it with a MIDI keyboard. However, the higher the pitch, the faster the sample is played, and the lower the pitch the slower the sample ...
0
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1answer
612 views

How can I sync audio and video from a different source?

I'm trying to sync my sound coming out from my Allen & Heath - Qu24 to the video on my camera...can someone help? Also I'm not too familiar with fps and sample rate.
2
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2answers
288 views

Is there any tradeoff to get the best quality/file size ratio for mp3 conversion?

We record vocal sound via the Creative - Sound Blaster X-Fi Titanium HD soundcard and its dedicated recording software. the settings are : 96 KHz 24 bit depth I would like to convert it to mp3 with ...
2
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2answers
352 views

How is compression quality related to sample rate?

The higher the sample rate is, the better the compression quality will be. That seems to be the conclusion to draw from several dynamics plugins I've worked with that implement oversampling (in this ...
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0answers
236 views

Windows 7 and setting Scarlett 18i20 sync source

Just installed an RME Hammerfall 9652 this weekend which is the primary soundcard for Ableton Live. I use a Focusrite Scarlett 18i20 to input all my analog gear into, to pass on to the RME. I ...
5
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4answers
7k views

WAV file recorded with wrong header

I have some WAV files that whose actual sound contents are at 44100Hz, but the headers incorrectly state that the sample rate is 48000Hz (I think this is due to the DAW setting its own sample rate OK ...
4
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2answers
7k views

Why do mp3 have sample rate?

So my understanding of mp3 or any lossy file format is that a lossless audio such as wav will be sampled at some rate i.e. 44.1kHz and the mp3 will compress each second of that to a constant rate of ...
3
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4answers
3k views

48kHz vs 44.1 kHz

I've been brought on for editing audio on a project (the audio isn't going to a video at all it is just for the audience to listen). The recording engineer has recorded this audio at 48 kHz, even ...
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1answer
149 views

How to handle conversion of 32728 Hz for playback on common software/devices? [closed]

I've been working on converting the soundtrack from a video game from its original format to something that you can easily play back on regular consumer devices. The system is Nintendo 3DS, utilizing ...
1
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1answer
322 views

Verification of upsampled audio file

I hope this is the correct forum. I started to do some programming involving sound recently and have encountered a lot of technical terms that are all foreign to me. I am slowly learning about them ...
-1
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2answers
1k views

44.1 vs 48 kHz for talk?

For doing a tutorial video cast, is there any reason to use 44.1 vs 48 kHz sampling rate? I'm exporting out of Screenflow and these are the two options for sample rate.
4
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5answers
3k views

What sampling rate and bit depth would be necessary to make a digital recording indistinguishable from the original?

I'm assuming this is a solved question (please cite sources). It seems like a 96kHz sampling rate with 24-bit samples is standard for high-resolution audio, but is this considered to be ...
-3
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1answer
172 views

Interpreting sampling rate of mp3 files

I thought mp3 encoding doesn't have a uniform sampling rate, how then sox --i shows sampling rate field for mp3s? I see 44100 sampling rate for an mp3 file.
5
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2answers
14k views

How to convert a stereo MP3 to mono MP3

We had an MP3 created for a message greeting on our phone system. It is stereo MP3, not sure what the bit rate is, but is sampled at 44.1k. Our sound system requires it to be in this format: 16 bit ...
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2answers
187 views

Why I hear shrieks that have the same pitch as sample rate when the frequency of the signal is very small?

Usually, human can't hear sound with a frequency lower than 20 Hz, but what's confused is, some very slight shrieks generate after I sampled a 1 Hz sine wave with a high sample rate. To be precise, ...
2
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0answers
59 views

Max audio sample rates? [duplicate]

I work as a sort of multi-purpose engineer/developer at a very small startup game company. Recently, I've been asked to help out with audio development and editing, and I've been mostly able to hold ...
3
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2answers
2k views

Sound Card Design: Why 96Khz/24bit?

I'm in the process of designing a soundcard. However, I'm a little confused over one aspect. The primary usage of the soundcard's output will be playing 320kbs mp3s through a program (Traktor, VDJ, ...
5
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1answer
7k views

What is the proper way to reduce audio sample rate and bit depth?

When presented with a lossless audio file, what is the proper way to reduce sample rate and bit depth? When reducing bit depth, I understand that I should apply dither, but I don't know what scale or ...
2
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1answer
2k views

How to correctly slow down the track to compensate for wrong bitrate?

I have some ripped tracks from an audio CD which originally had the music in 44100Hz bitrate, but it's encoded as 48000Hz. The pitch is definitely higher and so is the speed. How do I properly reduce ...
1
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1answer
676 views

sampling rate in .wav file

Hi everyone! I'm a newbie in sound generating and currently I'm coding assembly for playing a .wav file. What I have learned by all my searching is that in the structure of a .wav file there is some ...
2
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4answers
1k views

Sample rate for FX question, 48k or 96k

Hi, I'm a little confused on sample rates for fx recording and thought I'd post here. I'm recording some fx that I want to use in a variety of contexts, sound design material and for music. I want ...
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1answer
3k views

iPhone 5 Bit Depth & Sample Rate?

So, are we expecting the newly released iPhone 5 to have an increase in Bit Depth & Sample Rate capabilities for audio recording software / hardware? I scoured the tech specs on Apple's website ...
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3answers
8k views

What is the maximum sample rate/bit depth of the iPhone for recording?

Hello. I've been wondering for a while now about the recording capabilities of my iPhone. With the addition of the Apogee Mic and others it could be a good little recorder maybe? But I wonder, does ...
2
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2answers
346 views

Sync Issues and sample/bit rates

Hi, ive been recording sound for a tv show recently. I record the sound separately to the camera using portable recorder and a couple lapel (wireless) mics... Checking that on the camera their ...
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2answers
3k views

Sampling frequency Vs. Audio Frequency

If I record something that is at 500Hz audio frequency then the sampling frequency will still be 44.1Hz. How does the 500Hz audio frequency fits with 44.1KHz sampling frequency? If the sampling ...
8
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2answers
2k views

How is it possible to hear something at 44.1Khz?

Since our hearing range is said to be 20Hz to 20,000Hz. So, how can we possibly hear something at 44.1Khz? Or do we hear only half of the sound produced at 44.1Khz by any audio CDs? What is going on?
3
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3answers
908 views

Upsampling Sounds Prior to Processing

Let's say you've got a batch of raw sounds you're working on for your library, making versions of them that are more 'production ready.' Let's say that these sounds are 44.1 KHz / 16 bit. I find ...
4
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6answers
484 views

Why do some companies still sell SFX with 44.1 kHz sample-rates ?

Hi, I was wondering lately about differences in samplerates of wellknown sound libraries. Why does Sound Ideas, or other sound sellers, still deliver their libraries at 44.1 kHz instead of 48 kHz, ...
5
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7answers
3k views

What sample rate do you use/prefer?

First question so apologies if it's not up to scratch. Feel free to let me know :) I'm wondering what sample rate you like to record at and what the sample rate generally is of any sound effects that ...
0
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3answers
5k views

understanding sample rate conversions in Logic

Hi, when working on sound design for video in Logic 9, i use a project template with a sampling rate set at 48000khz. the source material i use vary in sample rate, hence i need to convert it all to ...
1
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4answers
956 views

Batch changing bit and sample rate

Here's something I never thought I'd do here... ask a question related to my day job. :D I'm a technician in a nursing simulation lab -- I get to play with human simulators all day -- and I've ...
2
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2answers
256 views

What are Your Preferred Bit/Sample Specs for Commercial Libraries?

Over the past 10 years I've been making most of my living doing stock libraries, patches, virtual instruments etc which were geared pretty specifically toward musicians. These days though, I'm doing ...
1
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2answers
587 views

Sample rate options on field recorders

I think this is a variation of the question that has been asked over and over, but I want to be sure I'm doing the right thing before buying a new field recorder. Currently I use the Tascam HD-P2 ...
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10answers
13k views

Should I use 44.1KHz, 48KHz or 96KHZ sampling frequency for hobby projects?

I use a firewire audio interface with a decent microphone pre-amp and the ability to sample up to 96KHz in 24-bit. I get why I'd want to use 24-bit for the added dynamic range, especially when using ...
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4answers
384 views

sample rate confusion

hi, either i have a workload-related blackout or i'm missing some basics..... i just completed editing a project consisting of audio material which was originally 44,100Hz. the audio is intended to ...
5
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10answers
4k views

What's your strategy behind 192kHz recording?

Lots of us record at at 192k for the 4x sample rate improvement, but how does that translate to a more useful or flexible sound file? According to Tim Prebble, plug-ins are more effective at 192k (...
3
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10answers
1k views

When will films be mixed at 96K?

When do you think it will be standard to mix a film at 96K or possibly 192K and have it stay at that sample-rate? Will Feature Films ever make the jump to 96K rather than stay at 48K? Also, when you ...
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9answers
3k views

What's your method of making time slow down?

There are a number of different ways to make audio slow down. I'm talking about sound that slows (and pitches) down to a stop, much like if you were to stop the motor on a record player without ...