Questions tagged [sample-rate]
The sample-rate tag has no usage guidance.
54
questions
1
vote
1answer
32 views
What's the lowest analog audio sound that a CD/44.1kHz audio system can make?
CDs, and other 44.1kHz sampling audio systems, can produce a maximum sound frequency of 20khz in the analog audio range (I'm not sure how the maths goes, but that's apparently true). My question is, ...
0
votes
1answer
27 views
Bit depth calculation doesn't seem to add up
I was looking to verify my understanding of audio file representations, so I decided to take an audio file at random and try to deduce its bit depth.
According to MediaInfo, the file in question has a ...
1
vote
1answer
208 views
Mixing audio with different sample rates
Given multiple audio streams, I need to mix them into a single stream. I know that in principle all I need to do is add the corresponding samples.
The issue is: The "input" streams have different ...
0
votes
1answer
18 views
Why does increasing the sample rate with SoundForge make the pitch go way up?
I have a problem. I have to increase the sample rate to 44.100. But when I do pitch goes way up and the track plays faster! HELP
Using SoundForge
2
votes
3answers
76 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
votes
1answer
56 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
votes
1answer
44 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
votes
1answer
442 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.
...
1
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1answer
7k 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 ...
1
vote
1answer
4k 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
votes
1answer
707 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
votes
1answer
377 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
votes
1answer
96 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
votes
1answer
129 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 ...
1
vote
2answers
2k 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
votes
1answer
523 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
2k 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
792 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
votes
2answers
312 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
votes
2answers
442 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 ...
0
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0answers
239 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 ...
6
votes
4answers
9k 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
votes
2answers
8k 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
votes
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 ...
1
vote
1answer
185 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
342 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 ...
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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
votes
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
votes
1answer
190 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.
7
votes
3answers
15k 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
...
1
vote
2answers
191 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
votes
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
votes
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
votes
1answer
8k 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 ...
3
votes
2answers
3k views
How do I correctly slow down the track to compensate for wrong sampling rate?
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
vote
1answer
711 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 ...
1
vote
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 ...
1
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3answers
10k 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
votes
2answers
356 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 ...
1
vote
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
votes
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
923 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
486 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, ...
6
votes
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
votes
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
1k 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
257 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 ...
2
votes
2answers
610 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 ...
12
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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 ...
